Avaya MPOA and NHRP, MPOA User Manual

BayRS Version 14.00
Part No. 309249-14.00 Rev 00

September 1999
4401 Great America Parkway

Santa Clara, CA 95054

Configuring MPOA and NHRP Services

Copyright © 1999 Nortel Networks

All rights reserved. Printed in the USA. September 1999.
The information in this document is subject to change without notice. The statements, configurations, technical data,

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309249-14.00 Rev 00

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309249-14.00 Rev 00

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309249-14.00 Rev 00

Contents

Preface

Before You Begin .............................................................................................................xiii

Text Conventions .............................................................................................................xiv

Acronyms ........................... .......................... .......................... ......................... .................xvi

Hard-Copy Technical Manuals . .............................................. ...... ...... ............................xviii

How to Get Help ............................................................................................................xviii

Chapter 1
Understanding MPOA and NHRP

ATM General Information ................................................................................................1-1

Multi-Protocol over ATM ..................................................................................................1-2

MPOA Logical Components .....................................................................................1-3

MPOA Basic Elements .............................................................................................1-4

Establishing a Network Cut-Through .... ...... ....... ...... ....... ...... ...... ....... ...... ....... ...... ...1-5

NHRP .............................................................................................................................1-7

For More Information ......................................................................................................1-8

Where to Go Next ...........................................................................................................1-9

Chapter 2
Starting MPOA and NHRP Services

Starting Configuration Tools ...........................................................................................2-1

Starting the MPOA Server ..............................................................................................2-2

Creating an MPOA Service Record .........................................................................2-2

Adding an MPOA Server ..........................................................................................2-4

Starting NHRP on an ATM LEC, PVC, or Classical IP Service ......................................2-5

Starting NHRP on an ATM LEC Service ..................................................................2-6

Starting NHRP on an ATM PVC Service ................................................................2-11

Starting NHRP on an ATM Classical IP (RFC 1577 SVC) Service ........................2-14

Where to Go Next .........................................................................................................2-16

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v

Chapter 3
Customizing MPOA Services

Disabling and Reenabling an MPOA Service .................................................................3-2

Setting the MPS Address Generating Mode ...................................................................3-3

Specifying an MPS Control ATM Address ......................................................................3-5

Network Prefix ..........................................................................................................3-5

User Suffix ................................................................................................................3-6

Disabling and Reenabling MPOA Servers ......................................................................3- 8

Specifying the MPS Configuration Mode ......................................................................3-10

Specifying a LECS ATM Address .................................................................................3-11

Network Prefix ........................................................................................................3-12

User Suffix ..............................................................................................................3-12

Configuring a Unique Selector Byte for an MPS Address ............................................3-14

Defining MPS Timer Values ..........................................................................................3-16

Setting the Transmission Interval for MPOA Keepalive Packets .............................3-17

Setting the Valid Lifetime for Keepalive Packets .....................................................3-18

Setting the Initial Retry Time ..................................................................................3-19

Setting the Maximum Retry Time ...........................................................................3-21

Setting the Time to Wait for Responses to Resolution Requests ...........................3-22

Setting the Valid Interval for Replies to Resolution Requests ................................3-23

Defining MPS Cache Values ........................................................................................3-25

Setting the Initial Cache Size .................................................................................3-25

Setting the Maximum Cache Size ..........................................................................3-26

Deleting MPOA Servers ...............................................................................................3-28

Deleting an MPOA Service Record ..............................................................................3-29

Where to Go Next .........................................................................................................3-31

Chapter 4
Customizing NHRP Services

Accessing NHRP Client and Server Global Parameters ................................................4-2

Disabling NHRP on an LEC or PVC or Classical IP Service ..........................................4-4

Deleting NHRP from an LEC or PVC or SVC Service ....................................................4-6

Deleting NHRP Globally .................................................................................................4-7

Where to Go Next ...........................................................................................................4-8

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Appendix A
Site Manager Parameters

Accessing ATM Parameters ........................................................................................... A-1

Accessing ATM MPOA Pa rameters Through a Window Path ................................. A-2

Accessing ATM MPOA and NHRP Parameters Through a Menu Path ................... A-2

MPOA Service Parameters ............................................................................................ A-3

MPOA Server (MPS) Parameters .................................................................................. A-5

MPS Add Parameters .............................................................................................. A-5

MPS Operational Parameters ................................................................................. A-7

NHRP Global Parameters ............................................................................................ A-14

NHRP Interface Parameters ........................................................................................ A-19

Appendix B
BCC Parameters

MPOA Service Record Parameters ............................................................................... B-2

MPS Parameters ........................................................................................................... B-4

MPOA Server Parameters ............................................................................................. B-8

NHRP Global Parameters .............................................................................................. B-9

NHRP Interface Parameter .......................................................................................... B-13

Appendix C
Monitoring MPOA and NHRP Services

Online Help for show Commands .................................................................................. C-2

show mpoa caches ........................................................................................................ C-3

show mpoa caches all .............................................................................................C-3

show mpoa caches egress ......................................................................................C-4

show mpoa caches ingress .....................................................................................C-6

show mpoa server .........................................................................................................C-7

show mpoa server configuration ............................................................................. C-7

show mpoa server stats .......................................................................................... C-9

show nhrp ....................................................................................................................C-12

show nhrp client configuration ............................................................................... C-12

show nhrp client stats ...........................................................................................C-13

show nhrp interfaces ............................................................................................. C-14

show nhrp server configuration ............................................................................. C-15

show nhrp server stats .......................................................................................... C-15

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Appendix D
Example Configuration

Configuration Diagram ................................................................................................... D-2

BCC Configuration Sequence .......................................................................................D-4

Appendix E
BCC Configuration Tree
for MPOA and NHRP

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Figures

Figure 1-1. ATM Zero-Hop (Cut-Through) Routing .....................................................1-2

Figure 1-2. MPOA with Cut-Through VC ....................................................................1-6

Figure 2-1. Mapping an MPS to an LEC Service .......................................................2-9

Figure D-1. Example MPOA/NHRP Configuration ..................................................... D-2

Figure E-1. BCC Configuration Tree for MPOA and NHRP ....................................... E-2

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ix

Tables

Table D-1. Example Configuration Summary ...........................................................D-3

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xi

This guide describes Nortel Networks implementation of Multi-Protocol over
ATM (MPOA) and Next Hop Resoluti on Protocol (NHRP) servic es, and what you
do to start and customize these services on a Nortel Networks

You can use the Bay Command Console (BCC
MPOA and NHRP on a router. In this guide, you will fi nd instructions for using
both the BCC and Site Manager. Use Site Manager to support any feature not
support by the BCC.

Before You Begi n

Before using this guide, you must complete the following procedures. For a new
router:

Preface

™

router.

™

) or Site Manager to configure

• Install the router (see the installation guide that came with your router).

• Connect the router to the network and create a pilot configuration file (see

Make sure that you are runni ng the lates t versio n of Nortel Netw orks BayRS
Site Manager software. For information about upgrading BayRS and Site
Manager, see the upgrading guide for your version of BayRS.

309249-14.00 Rev 00

Quick-Starti ng Router s , Conf igur ing BaySt ac k Remote Acc ess , or Connecting
ASN Routers to a Network).

™

and

xiii

Configuring MPOA and NHRP Services

Text Con ventions

This guide uses the following text conventions:

angle brackets (< >) Indicate that you choose the text to enter based on the

description inside the brackets. Do not type the
brackets when entering the command.

Example: If the command syntax is:

ping

<

ip_address

ping 192.32.10.12

>, you enter:

bold text

Indicates command names and options and text that
you need to enter.

Example: Enter

show ip {alerts | routes

Example: Use the

dinfo

command.

}.

braces ({}) Indicate required elements in syntax descriptions

where there is more than one option. You must choose
only one of the options. Do not type the braces when
entering the command.

Example: If the command syntax is:

show ip {alerts | routes
show ip alerts or show ip routes

}

, you must enter either:

, but not both.

brackets ([ ]) Indicate optional elements in syntax descriptions. Do

not type the brackets when entering the command.
Example: If the command syntax is:

show ip interfaces [-alerts
show ip interfaces

or

]

, you can enter either:

show ip interfaces -alerts

.

ellipsis points (. . . ) Indicate that you repeat the last element of the

command as needed.

xiv

Example: If the command syntax is:

ethernet/2/1
ethernet/2/1

[<

parameter> <value

and as many parameter-value pairs as

needed.

. . .

>]

, you enter

309249-14.00 Rev 00

Preface

italic text Indicates file and directory names, new terms, book

titles, and variables in command syntax descriptions.
Where a variable is two or mor e words, the words are
connected by an underscore.

Example: If the command syntax is:

show at <

valid_route

valid_route

>

is one variable and you substitute one value

for it.

screen text Indicates system output, for example, prompts and

system messages.
Example:

Set Trap Monitor Filters

separator ( > ) Shows menu paths.

Example: Protocols > I P ide nti fies the I P opt ion on the
Protocols menu.

vertical line (

) Separates choices for command keywords and

|

arguments. Enter only one of the choices. Do not type
the vertical line when enteri ng the command.

Example: If the command syntax is:

show ip {alerts | routes}, you enter either:
show ip alerts or show ip routes, but not both.

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Configuring MPOA and NHRP Services

Acronyms

This guide uses the following acronyms:

AAL ATM adaptation layer
AFI authority and format identifier
ARE ATM Routing Engine
ARP Address Resolution Protocol
ATM asynchronous transfer mode
B-ISDN Broadband Integrated Services Digital Network
CSU channel service unit
DCE data communication equipment
DSU data service unit
DTE data terminal equipment
ELAN emulated local area network
IETF Internet Engineering Task Force

xvi

ILI Intelligent Link Interface
ILMI Interim Local Management I nterface
IP Internet Protocol
LANE local area network emulation
LE LAN emulat ion
LEC LAN emulation client
LECS LAN emulation configuration server
LER label edge router
LES LAN emulat ion server
LLC Logical Link Control
MAC media access control
MIB management inform ation base
MPC MPOA client
MPLS Multiprotocol Label Switching

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MPOA Multi-Protocol over ATM
MPS MPOA server
MTU maximum transmission unit
NHRP Next Hop Resolution Protocol
OC-3 Optical Carrier-level 3
OSPF Open Shortest Path First
PDN Public Data Network
PDU protocol data unit
PHY physical [layer]
PMD physical medium dependent
PT payload type
PVC permanent virtual circuit
RIP Routing Information Protocol
SAAL signaling AAL
SAP service access point

Preface

SAR segmentation and reassembly
SMDS Switched Multimegabit Data Service
SNAP Subnetwork Access Protocol
SNMP Simple Network Management Protocol
SONET/SDH Synchronous Optical Network/Synchronous Digital Hierarchy
SPE synchronous payload envelope
SRM System Resource Module
SSCOP Service Specific Connection Oriented Protocol
SSCS service specific convergence sublayer
SVC switched virtual circuit
UNI user-to-network interface
VC virtual circuit
VCC virtual channel connection
VCI virtual chann el identifier

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Configuring MPOA and NHRP Services

VCL virtual channel link
VPC virtual path connection
VPI virtual path identifier
WAN wide area network

Hard-Copy Technical Manuals

You can print selected technical manuals and release notes free, directly from the
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which you need documentation. Then locate the specific category and model or
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You can purchase selected documentation sets, CDs, and technical publications
through the collateral catalog. The catalog is located on the World Wide Web at

support.baynetworks.com/catalog.html and is divided into sections arranged

alphabetically:

• The “CD ROMs” section lists available CDs.

• The “Guides/Books” section lists books on technical topics.

• The “Technical Manuals” section lists available printed documentation sets.

How to Get Help

If you purchased a service contract for your Nortel Networks product from a
distributor or authorized reseller, contact the technical support staff for that
distributor or reseller for assistance.

If you purchased a Nort el Net wor ks s ervice pr ogram, c ontact one of the f ollowing
Nortel Networks Technical Solutions Centers:

Technical Solutions Center Telephone Number

Billerica, MA 800-2LANWAN (800-252-6926)
Santa Clara, CA 800-2LANWAN (800-252-6926)

xviii

309249-14.00 Rev 00

Technical Solutions Center Telephone Number

Valbonne, France 33-4-92-96-69-68
Sydney, Australia 61-2-9927-8800
Tokyo, Japan 81-3-5402-7041

Preface

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xix

Chapter 1

Understanding MPOA and NHRP

This chapter descr ibes the c oncepts under lying Multi-pr otocol o ver ATM (MPO A)
and Next-Hop Resolution Protocol (NHRP) and, where appropriate, the specific
ways in which Nortel Networks implements MPOA and NHRP functionality on
its routers. It contains the following information:

Topic Page

ATM General Information 1-1
Multi-Protocol ov er ATM 1-2
NHRP 1-7
For More Information 1-8
Where to Go Next 1-9

ATM General Information

Asynchronous transfer mode (ATM) is a connection-oriented, cell-based
technology that relays traffic across a Broadband Integrated Services Digital
Network (B-ISDN). ATM provides a cost-effective way of transmitting voice,
video, and data across a network. For more information about ATM, see
Configuring ATM Services.

309249-14.00 Rev 00

1-1

Configuring MPOA and NHRP Services

Multi-Protocol over ATM

As defined by the ATM Forum, Multi-Protocol over ATM (MPOA) maps routed
and bridged traffic flows to ATM SVCs, thereby removing many performance
limitations imposed by the mult ihop routing of individual packets. This technique
of mapping identifiable traffic flows to virtual channels creates network
“shortcuts” between source and destination clients, and is generally referred to as
cut-through or zero-hop routing. Fi gur e 1-1
can communicate efficiently over an independent layer 2 (ATM) virtual channel,
established by means of MPOA and NHRP negotiations.

shows ho w users on LAN 1 or LAN 2

MPOA server 1

(MPS)

MPOA

MPOA client 1

(MPC)

ATM ELAN, PVC

or RFC 1577 SVC

NHRP NHRP

ATM ELAN

Cut-through (zero-hop) route (ATM SVC)

Established through MPOA/NHRP negotiations

MPOA servers

(MPSs)

ATM ELAN, PVC

or RFC 1577 SVC

ATM ELAN

MPOA server

(MPS)

MPOA

MPOA client 2

(MPC)

LAN 2LAN 1

BCC0029A

n

Figure 1-1. ATM Zero-Hop (Cut-Through) Routing

MPOA supports communication between an MPOA client (MPC), typically an
ATM edge device or switch, and its MPOA server (MPS), typically a router.
NHRP supports communication between MPSs.

1-2

309249-14.00 Rev 00

Understanding MPOA and NHRP

Although the connection between any two MPSs can be supported by an ATM
PVC, RFC 1577 SVC (ATM Classical IP), or emulated LAN (ATM LANE), the
connection between any MPC and its MPS must always be supported by an
ELAN, as shown in Figure 1-1 on page 1-2

.

Cut-through routing i s based o n the f act t hat, in most cases , data t ransfe r occur s at
a steady rate of flow. For example, data or file transfer from one legacy Ethernet
LAN to a remote counterpart usually involves multiple frames. A file transfer of
approximately 45 KB requires about 30 Ether net frames, all address ed to the same
destination.

In an MPOA environment, it is possible to:

• Identify, from the address field in the first frame of a data/file transfer, the
recipient of that data or file.

• Establish an SVC to the recipient.

The software then disassembles all 30 or so frames into approximately 900 ATM
cells and transmitts them to the reci pient by way of th e virtual channel provided
by the SVC.

Network performa nce i mp roves as the cells follow a predetermined di re ct path, in
contrast to the hop-by-hop routing of the Ethernet frames. Network performance
improves markedly in the case of steady-stream deterministic data flows, such as
video.

MPOA Logical Components

MPOA operati ons are based on l ogical compone nts, which can be im plemented in
various configurations of hardware and software. MPOA logical components
include the following:

•MPOA clients
An MPOA client (MPC) resides in each ATM edge device (for example, an

ATM switch) served by an MPOA router. BayRS does not provide MPC
functionality. The primary function of the MPC is t o act, in ATM termi nology,
as an ingress or egress point for traffic establishing and subsequently using
network cut-throughs.

309249-14.00 Rev 00

1-3

Configuring MPOA and NHRP Services

The MPC moni tors traffic flows between a local source and remote
destinations. Wh en traffic volume between a sour ce and a d estin ation exceeds
a preconfigured threshold level (for example x packets to the same network
layer address in y seconds), the MPC attempts to set up an SVC between the
source and destination workstations.

In attempting to set up an SVC, the MPC first looks in a local cache of
network layer-to-ATM address mappings. If the MPC finds the destination
address in its local cac he, it immediately be gins to est ablish the SVC. If it f ails
to locate the destination address in the local cache, it generates an MPOA
address resolution request to an adjacent MPOA server.

• MPOA routers
Each MPOA router that serves MPCs, directly or indirectly, includes a

collection of logical functions that map network layer addresses to ATM
addresses. Each MPO A router maintai ns tables of adjacent network layer (IP),
MAC laye r, and ATM addresses, in addition to s tandar d ro uting tabl es der ived
from a routing protocol (generally OSPF or RIP).

MPOA routers communicate over NHRP to map network layer addresses to
ATM addresses. BayRS provides MPOA router functionality to map IP
addresses to their ATM c ounterparts.

• MPOA servers
The MPOA server (MPS) is a logical function that mediates between local

MPCs and the MPOA router. It receives MPOA address resolution requests
from MPCs and passes them to the MPOA routing function. The MPOA
router, using NHRP, resolves the address and passes the requested ATM
address back to the MPS. The MPS, in turn, forwards the resolved address to
the requesting MPC. BayRS provides MPOA server functionality.

MPOA Basic Elements

MPOA services provid ed by each Nort el Networks router depend on the e xistence
of:

• An ATM emulated LAN (using LANE) between each MPC and its MPS.

• An ATM emulated LAN, ATM Classical IP (RFC 1577 SVC), or an ATM
PVC between any two MPSs. (See Figure 1-1 on page 1-2

• NHRP to resolve ATM and IP source and destination addresses.

• IP to route NHRP packets and other traffic between MPSs.

1-4

.)

309249-14.00 Rev 00

Understanding MPOA and NHRP

For more information about Go to

IP
LANE
NHRP “NHRP” on page 1-7

Establishing a Network Cut-Through

MPOA componen ts and elements fu nction together to establish an SVC bet ween a
source host and a destination host, as follows:

1.

A local MPC monitors traf f ic f lo w and mainta ins a count of pack ets addre ssed
over a specific interval to remote hosts. When the count exceeds a threshold
value, the MPC attempts to establish an SVC to the host.

To establish the virtual connection, the MPC needs the ATM address of the
host.

2.

The MPC first checks a local address resolution cache to map the known
network layer address with an ATM equivalent.

3.

If the cache search fails, the MPC issues an MPOA resolution request to the
local MPS function resident on the adjacent router.

4.

The local MPS hands the resolution request to the MPOA router component.

5.

The MPOA rou ter gener ates an NHRP address resolut ion reque st for t he ATM
address of the destination host. Standard routing protocols move the NHRP
request through the network toward the des tination host. Eventually, the
NHRP request reaches the egress router, that is, the router that serves the
target host.

Configuring IP Services
Configuring ATM Services

6.

7.

309249-14.00 Rev 00

The egress router forwards the request to its MPS entity.
The remote MPS provides the ATM address of the destination host to its

NHRP entity.
If the destination host is connected to a legacy LAN, the MPS provides the

ATM address of the router that conn ect s to the legacy LAN. If the destination
host is ATM-attached, the MPS provides the ATM address of the destination
host.

1-5

Configuring MPOA and NHRP Services

8.

The remote MPOA router generates an NHRP address resolution reply
containing the ATM address pr ovi ded b y the MPS. Stan dard ro uting prot ocols
move the NHRP reply through the network to the local MPOA router.

9.

The local MPOA rout er sends the resolved addr ess to the MPS, which then
caches and sends t he r esolved addre ss to the MPC that init iat ed the resolutio n
process.

10.

The local MPC caches the address resolution information and establishes an
SVC to the remote MPC, establish ing the netw or k cut-thr ough connection f or
more efficient communication.

ATM MPC

10BASE-T

ATM network

ATM MPS

ELAN 1

ELAN 2

ATM MPC

10BASE-T

Figure 1-2. MPO A with Cut-Through VC

Note again t hat in Figure 1-2, the logical connection between any two MPSs can
be an ATM PVC or RFC 1577 SVC (ATM Classical IP) instead of an ELAN,
depending on your network topology requirements.

1-6

ELAN 3

ELAN 4

ATM MPS

Key

Cut-through VC
Logical connection

NHRP control VC

ATM0055A

309249-14.00 Rev 00

NHRP

Understanding MPOA and NHRP

NHRP is an address resolution protocol described in Internet RFC 2332.
As defined by the RFC, NHRP provides address resolution services by mapping
“internetworking layer addresses to NBMA subnetwork addresses.” As
implemented by N ortel Networks, N HRP resolves IP to ATM addresses.

The IETF draft specifies behavior for NHRP clients and NHRP servers.

• The NHRP client (NHC) generates NHRP address resolution requests on
behalf of applications such as a local MPS.

• The NHRP server (NHS) responds to NHRP address resolution requests by
generating NHRP address resolution replies. For this purpose, the NHS
maintains a next-hop cache.

NHRP supports address resolution using seven formatted message types.

• NHRP resolution request
An NHRP resolution request is generated by an NHC and routed through the

ATM topology. Functionally eq uivalent to a stan dard ARP requ est, it contai ns
the layer 3 and layer 2 address of the originator, the layer 3 address of the
target destination, and a blank field reserved for the layer 2 address of the
target. As implemented by Nortel Networks, the NHRP resolution request
contains the IP and ATM addresses of the originator and the IP address of the
target.

• NHRP resolution reply

• NHRP registration request

309249-14.00 Rev 00

An NHRP resolution reply is generated by an NHS in response to an NHRP
resolution request. Like an NHRP resolution request, it is routed through the
ATM topology. It is functionally e qui v alen t to a stan dard ARP response in th at
it replicates the information in the NHRP resolution request and supplies the
requested layer 2 (ATM) address.

An NHRP registration request is generated by an NHC and directed toward
the local NHS. The NHRP registration request is used to register address
mapping data gathered by the NHC with the NHS. The NHS places mapping
data in its next-hop cache.

1-7

Configuring MPOA and NHRP Services

• NHRP registration reply
An NHRP registration reply is generated by an NHS in response to an NHRP

registration request. It provides positive or negative acknowledgment of data
receipt.

• NHRP purge request
An NHRP purge request can be generated by either an NHC or an NHS. It

requests the recipi ent to delete pr evio usly cached informatio n that has become
invalid.

• NHRP purge reply
An NHRP purge reply is generated by either an NHC or an NHS in response

to an NHRP purge request. It provides positive acknowledgment of data
receipt.

• NHRP error indication
An NHRP error indication can be generated by either an NHC or an NHS. It

conveys error status to the sender of an NHRP message.

For More Information

1-8

For more information about MPOA and NHRP, refer to the following documents:
Heinanen, J. Multiprotocol Encapsulation over ATM Adaptation Layer 5.

RFC 1483. Network Working Group. July 1993.
Cole, B., N. Doraswamy, D. Katz, J. Luciani, D. Piscitello. NBMA Next Hop

Resolution Protocol (NHRP). RFC 2332. April 1998.

309249-14.00 Rev 00

Where to Go Next

Use the following table to determine where to go next.

If you want to Go to

Understanding MPOA and NHRP

Learn about ATM and PVCs.
Learn about LAN emulation.
Start MPOA and NHRP services. Chapter 2
Change defa ult settings for MPOA server parameters. Chapter 3
Change default settings for NHRP client or server

parameters.
Obtain information about Site Manager parameters. Appendix A
Obtain information about BCC parameters. Appendix B
Monitor ATM using the BCC show commands. Appendix C
Review an example MPOA/NHRP configuration

sequence.
Review the BCC configuration tree for MPOA and NHRP

services.

Configuring ATM Services

Chapter 4

Appendix D

Appendix E

309249-14.00 Rev 00

1-9

Chapter 2

Starting MPOA and NHRP Services

This chapter describes how to create basic MPOA and NHRP configurations by
specifying v alues for r equired paramet ers only, and by accepting def ault v alues fo r
all other parameters.

This chapter contains the following inf ormation:

Topic Page

Starting Configuration Tools 2-1
Starting the MPOA Server 2-2
Starting NHRP on an ATM LEC, PVC, or Classical IP Service 2-5
Where to Go Next 2-16

Starting Configuration Tools

Before configuring MPOA or NHRP services, refer to the following user guides
for instructions on how to start and use the Nortel Networks configuration tool of
your choice.

Configuration Tool User Guide

Bay Command Console (BCC)
Site Manager

309249-14.00 Rev 00

Using the Bay Command Console (BCC)
Configuring and Managing Routers with

Site Manager

2-1

Configuring MPOA and NHRP Services

Start ing the MPOA Server

To start the MPOA server, you must perform the following steps:

1.

Start ATM on the router. (See Configuring ATM Services.)

2.

Configure any ATM PVCs, SVCs (Classical IP), and LAN emulation client
(LEC) services that you need for MPOA/NHRP to operate within your
specific network topology. (See Chapter 1 and Configuring ATM Services.)

Be sure to:

• Specify LANE data encapsulation for each LEC that you require.

• Specify LLC-SNAP data encapsulation for each PVC that you require.

• Configure IP and NHRP on each LEC, PVC, and Classical IP (SVC)

service.

3.

Create an MPOA service record.

4.

Add an MPS to the MPOA service record.

5.

Ensure that a LECS has been configured on your network.

6.

Map any LEC services on the router to the desired local MPS.

Creating an MPOA Service Record

To run an MPOA server o v er ATM, you must f i rst cr eate an MPOA service record
on an ATM interface. Then you add one or more MPOA servers (MPSs) to the
MPOA service record.You can use the BCC or Site Manager to accomplish this
using default values for all parameters.

Using the BCC

To create an MPOA service record, navigate to the appropriate ATM interface
prompt and enter:

mpoa-service

2-2

309249-14.00 Rev 00

For example, on a System 5000™ router, the following command sequence:

• Creates an ATM interface on slot 5, module 3, connector 1.

• Creates an MPOA service on the ATM interface.

stack# atm slot 5 module 3 connector 1
atm/5/3/1# signaling
signaling/5/3/1# back
atm/5/3/1# mpoa-service
mpoa-service/5/3/1#

On a BLN®/BCN® router, the commands are identical, except that you do not
specify a module number for the ATM interface:

box# atm slot 5 connector 1
atm/5/1# signaling
signaling/5/1# back
atm/5/1# mpoa-service
mpoa-service/5/1#

Using Site Manager

To create an MPOA service using Site Manager, complete the following tasks:

Starting MPOA and NHRP Services

<-- (Signaling must be enabled for a new ATM interface.)

You do this System responds

1. In the Configuration Manager window,

2. Click on

3. Click on

4. Click on OK. The MPOA Service Record window

5. Go to the next section, “Adding an MPO A

6. Click on

309249-14.00 Rev 00

Site Manager Procedure

click on an ATM link module interface (for
example,

Server,” or go to the next step to exit this

procedure.

).

ATM1

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. You return to the Edit ATM Connector

Done

. The MPOA Server Parameters window

The Select Connection Type window
opens.

opens.

opens.

window.

(continued)

2-3

Configuring MPOA and NHRP Services

You do this System responds

7. Click on

8. Click on

Done

Done

By default, when you enter and then exit the MPOA Service Record window, you
automatically create and enable the MPOA service record using the default
settings. You need only enter and exit this window one time to create and enable
the MPOA service reco rd. However, for MPOA to operate , you must add at least
one MPS to the service record.

Note:

You can have only one MPOA service record per ATM interface.

However, this service record can contain up to four MPSs.

Adding an MPOA Server

You must add at least one MPS to any MPOA service that you create on an ATM
interface. Although not operational until fully configured, an MPS is enabled by
default when you add it to an MPOA service record.

Site Manager Procedure

. You return to the Select Connection Type

. You return to the Configuration Manager

(continued)

window.

window.

Using the BCC

2-4

A new MPS must be in the enabled state so that you can map it to one or more
LEC services. Then you can use either the BCC or Site Manager to map each
MPS to a specific LEC service on the router.

To add an MPS, navigate to the desired MPOA service prompt and enter:

mps mps-name

<mps-name>

For example, on a System 5000 router, the following command adds an MPS
named “east coast” to an MPOA servi ce:

mpoa-service/5/3/1#
mps/eastcoast#

mps mps-name eastcoast

309249-14.00 Rev 00

Using Site Manager

To add an MPS to an MPOA service, complete the following tasks:

You do this System responds

Starting MPOA and NHRP Services

Site Manager Procedure

1. In the Configuration Manager window,
click on an ATM link module interface (for
example,

2. Click on

3. Click on

4. Click on

5. Click on

6. Click on OK. You return to the MPS List window. The

7. Repeat steps 5 and 6 to add additional
MPOA servers.

8. Go to the next section, “Starting NHRP on

an ATM LEC, PVC, or Classical IP
Service” or go to the next step to exit this

procedure.

9. Click on

10. Click on

11. Click on

12. Click on

).

ATM1

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

. The MPS Configuration Parameters

Add

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

. The MPOA Server Parameters window

The Select Connection Type window
opens.

opens.

window opens.

MPS List window show s the add ed MPS.

window.

window.

window.

window.

Starting NHRP on an ATM LEC, PVC, or Classical IP Service

Before configur ing NHRP on a Nortel Netw orks router, determine the type of link
between each pair of MPSs in your ATM network. After making this
determination, configure IP, RIP or OSPF, and NHRP on the LEC, PVC, or
Classical IP service (as determined for each MPS-to-MPS link).

309249-14.00 Rev 00

2-5

Configuring MPOA and NHRP Services

Note:

Enabling RIP or OSPF on an LEC, PVC, or Classical IP (SVC) service

is unnecessary if your network already has a routed path between MPSs.

Based on each type of link between two MPSs, proceed as follows:

MPS Link Service Go to

Emulated LAN (ELAN) LEC service Starting NHRP on an ATM LEC Service
Permanent virtual ci rcuit

(PVC)
Switched virtual circuit

(SVC)

PVC service Starting NHRP on an ATM PVC

Classical IP se rvice Starting NHRP on an ATM Classical IP

Starting NHRP on an ATM LEC Service

To allow LANE and normally routed traffic to flow through an ATM LEC service
and between MPSs, enable IP and optiona lly a r outing protoco l (RIP or OSPF ) on
that IP interface.

Service

(RFC 1577 SVC) Service

Using the BCC

2-6

To allow NHRP address resolution requests and replies to flow through the same
ATM LEC service and between MPSs, you must enable NHRP on that service.

You can use either the BCC or Site Manager to add IP, RIP or OSPF, and NHRP
to an LEC service.

To add IP, RIP or OSPF, and NHRP to an existing LEC service:

1.

Navigate to the appropriate lec-service prompt and enter:

nhrp

2.

Navigate back to the lec-service prompt, and enter:

ip address

3.

At the resulting IP interface prompt, add the desired routing protocol

<IP_address>

mask

<subnet_mask>

(RIP or OSPF):

rip

309249-14.00 Rev 00

For example, on a System 5000 router, the following BCC commands navigate to
the lec-service named “newyork” and add NHRP, IP, and RIP to that service:

stack# atm/5/3/1
atm/5/3/1# lec-service/newyork
lec-service/newyork# nhrp
nhrp/newyork# back
ip/1.2.3.4/255.0.0.0# rip
rip/1.2.3.4#

When you add NHRP to any ATM LEC service, the BCC automatically creates
the global NHRP object at root level if you have not already done so.

Using Site Manager

To add NHRP to an existing LEC service, com plete the following tasks:

You do this System responds

Starting MPOA and NHRP Services

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
which you want to add NHRP.

2. Click on

3. Click on

4. Click on the ATM LANE service record to
which you want to add NHRP.

5. Click on the Protocols menu in the upper
left hand corner of the window.

6. Choose

7. Select IP,

8. Click on OK. The IP Configuration window opens.

9. Set the following parameter s:

• IP Address

• Subnet Mask

• Transmit B cast Address

Click on

RIP, and OSPF Services

descriptions.

. The Edit ATM Connector window opens.

ATM
Service Attributes

Add/Delete

RIP

Help

. The Select Protocols window opens.

, and

or see

.

NHRP

Configuring IP, ARP,

for parameter

) on

ATM1

. The ATM Service Records List window

The Select Connection Type window
opens.

opens.

(continued)

309249-14.00 Rev 00

2-7

Configuring MPOA and NHRP Services

Site Manager Procedure

You do this System responds

10. Click on OK. The NHRP Network Configuration

11. Set the following parameters, or use
default values:

• NHRP Request Path

• Client Enable

• Client Reg Interval

• Client Hold Time

• Client Request Timeout

• Client Request Retry

• Client Max Pending Request Entries

• Server Enable

• Server Forward Enable

• Server Max Next Hop Entries

• Server Max Pending Request

Entries

Click on
descriptions beginning on page A-14.

12. Click on

13. Click on

14. Click on

15. Click on

or see the parameter

Help

OK.

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

(View Only)

(continued)

window opens.

You return to the ATM Service Records
List windo w which displays a summary of
the NHRP record that you configured.

window.

window.

window.

2-8

Mapping an MPS to a LAN Emulation Client

You must map an MPS to any LEC service likely to send and receive MPOA
resolution requests and replies over the ATM network. You can map one MPS to
one or more LEC services configured on the same ATM slot and connector.

309249-14.00 Rev 00

Using the BCC

Starting MPOA and NHRP Services

To map an MPS to an LEC service, navigate to that LEC service and enter:

mpoa-server mps-name

<mps-name>

For example, on a System 5000 router, the following BCC commands navigate to
the LEC service “newyork” and map the MPS named “eastcoast” to it:

stack#
atm/5/3/1#
lec-service/newyork#
mpoa-server/newyork#

atm/5/3/1

lec-service/newyork

mpoa-server mps-name eastcoast

Figure 2-1 shows the configuration hierarchy and logical mapping between the

MPS and the LE C in this example.

stack

atm/5/31/1

signaling/5/3/1

(mapping object)

lec-service/newyork

mpoa-server/newyork

mps-to-lec-service
mapping

Figure 2-1. Mapping an MPS to an LEC Service

309249-14.00 Rev 00

mpoa-service/5/3/1 mps/eastcoast

BCC0031A

2-9

Configuring MPOA and NHRP Services

Using Site Manager

To map an MPOA server (MPS) to a LEC service, complete the following tasks:

You do this System responds

Site Manager Procedure

1. In the Configuration Manager window,
click on an ATM link module interface (for
example,

2. Click on

3. Click on

4. Click on

5. Click on

6. Click on any LEC that you want to map to
the MPS.

7. Click on

8. Repeat steps 8 and 9 to map any
additional LECs.

9. Click on

10. Click on

11. Click on

12. Click on

13. Click on

).

ATM1

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS
Mapping

Mapping

Done
Done

Done

Done

Done

. The LEC (to) MPS Mapping List window

. Site Manager maps the LEC to the MPS.

. You return to the MPS List window.
. You return to the MPOA Service Record

. You return to the Edit ATM Connector

. You return to the Select Connection Type

. You return to the Configuration Manager

. The MPOA Service Record window

The Select Connection Type window
opens.

opens.

opens.

window.

window.

window.

window.

2-10

309249-14.00 Rev 00

Starting NHRP on an ATM PVC Service

To allow normally routed traffic to flow through an ATM PVC service and
between MPSs, enable IP plus an opt ional routi ng proto col (RIP or OSPF) on tha t
IP interface. (Configure RIP or OSPF if no routed paths exist between MPSs in
your ATM network).

To allow NHRP address resolution requests and replies to flow through the same
ATM PVC service and between MPSs, you must enable NHRP on that service.

You can use either the BCC or Site Manager to add IP, RIP or OSPF, and NHRP
to an ATM PVC service.

Using the BCC

To add IP, RIP or OSPF, and NHRP to an existing ATM PVC service:

1.

Navigate to the appropriate pvc-service prompt and enter:

nhrp

2.

Navigate back to the pvc-service prompt, and enter:

Starting MPOA and NHRP Services

3.

For example, on a System 5000 router, the following BCC commands navigate to
the pvc-service named “phoenix” and add NHRP, IP, and RIP:

stack#
atm/5/3/1#
pvc-service/phoenix#
nhrp/phoenix#
ip/1.2.3.6/255.0.0.0#
rip/1.2.3.6#

When you add NHRP to any ATM PVC service, the BCC automatically creates
the global NHRP object at root level if you have not already done so.

309249-14.00 Rev 00

ip address

<IP_address>

mask

<subnet_mask>

At the resulting IP interface prompt, add a routing protocol (RIP or
OSPF):

rip

atm/5/3/1

pvc-service servicename phoenix

nhrp

back

rip

2-11

Configuring MPOA and NHRP Services

Using Site Manager

To add NHRP to an exis ting ATM interface, comple te the following tasks:

You do this System responds

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
which you want to add NHRP.

2. Click on

3. Click on

4. Click on the PVC service record to wh ich
you want to add NHRP.

5. Click on the Protocols menu in the upper
left corner of the window.

6. Choose

7. Select IP,

8. Click on OK. The IP Configuration window opens.

9. Set the following parameter s:

• IP Address

• Subnet Mask

• Transmit B cast Address

Click on

RIP, and OSPF Services

descriptions.

10. Click on OK. The NHRP Network Configuration (NHRP

. The Edit ATM Connector window opens.

ATM
Service Attributes

Add/Delete

RIP

Help

. The Select Protocols window opens.

, and

or see

.

NHRP

Configuring IP, ARP,

for parameter

) on

ATM1

. The ATM Service Records List window

The Select Connection Type window
opens.

opens.

global parameters) window opens if
NHRP has not been configured on any
interface.

(continued)

2-12

309249-14.00 Rev 00

Starting MPOA and NHRP Services

Site Manager Procedure

You do this System responds

11.Use default values for the following
parameters:

• NHRP Request Path

• Client Enable

• Client Reg Interval

• Client Hold Time

• Client Request Timeout

• Client Request Retry

• Client Max Pending Request Entries

• Server Enable

• Server Forward Enable

• Server Max Next Hop Entries

• Server Max Pending Request

Entries

Click on
descriptions beginning on page A-14.

12. Click on

13. Click on

14. Click on

15. Click on

or see the parameter

Help

OK.

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

(continued)

You return to the ATM Service Records
List windo w which displays a summary of
the NHRP record that you configured.

window.

window.

window.

309249-14.00 Rev 00

2-13

Configuring MPOA and NHRP Services

Starting NHRP on an ATM Classical IP (RFC 1577 SVC) Service

To allow normally routed traffic to flow through an ATM SVC (Classical IP)
service and betw een MPSs, enable IP plus an optional routing prot ocol on that IP
interface. (Configure RIP or OSPF if no routed path exists between MPS s in your
ATM network).

To allow NHRP address resolution requests and replies to flow through the same
ATM Classical IP (SVC) service and between MPSs, you must enable NHRP on
that service.

You can use either the BCC or Site Manager to add IP, RIP or OSPF, and NHRP
to the appropriate ATM Classical IP (SVC) service.

When configuring an RFC 1577 SVC connection between a pair of MPSs, keep
the following in mind:

• The SVCs must use LLC/SNAP encapsulation (you cannot use NLPID or
NULL enca psulation on the SVC).

• You must configure the SVC with IP and NHRP.

• To avoid manually conf iguri ng adjac ent hos ts for eac h MPS, you may wa nt to
configure the SVC to run RIP.

Using the BCC

2-14

• Set the client mode for the SVC to client on one MPS and server on the other
MPS.

For instructions on configuring an SVC service record with LLC/SNAP
encapsulation, see Configuring ATM Services.

To add IP, RIP or OSPF, and NHRP to an existing ATM Classical IP (RFC 1577
SVC) service:

1.

Navigate to the desired classical-ip-service prompt and enter:

nhrp

2.

Navigate back to the classical-ip-service prompt, and enter:

ip address

<IP_address>

mask

<subnet_mask>

309249-14.00 Rev 00

Starting MPOA and NHRP Services

3.

At the resulting IP interface prompt, add the desired routing protocol
(RIP or OSPF):

rip

For example, on a System 5000 router, the following BCC commands navigate to
the classical-ip-service named “baltimore” and add IP, RIP, and NHRP to that
service:

stack#
atm/5/3/1#
classical-ip-service/baltimore#
nhrp/baltimore#
ip/1.2.3.6/255.0.0.0#
rip/1.2.3.6#

When you add NHRP to any ATM Classical IP service, the BCC automatically
creates the global NHRP object at root level if you have not already done so.

Using Site Manager

After you create an ATM SVC service record, the Add Protocols window opens.
T o add IP, NHRP, and RIP to an SVC service record, complete the follo wing tasks :

You do this System responds

1. Click on IP. A check mark appears in the IP box.

2. Click on

3. Click on

4. Click on OK. The IP Configuration window opens.

5. Set the following parameter s:

atm/5/3/1

classical-ip-service servicename baltimore

back

rip

. A check mark appears in the RIP box

RIP

. A check mark appears in the NHRP box.

NHRP

• IP Address

• Subnet Mask

• Transmit B cast Address

Click on

RIP, and OSPF Services

descriptions.

Help

Configuring IP, ARP,

or see

for parameter

nhrp

Site Manager Procedure

6. Click on OK. The ATM ARP Configuration window

309249-14.00 Rev 00

opens.

(continued)

2-15

Configuring MPOA and NHRP Services

You do this System responds

7. Set the following parameter s:

• ATM ARP Mode

• ARP Server ATM Address Network

Prefix

• ARP Server ATM Address User Part

Click on
descriptions in

8. Click on OK. The NHRP Network Configuration

9. Click on OK. You return to the ATM Service Records

10. Click on

11. Click on

12. Click on

Where to Go Next

Site Manager Procedure

Help

or see the parameter

Configuring ATM Services

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

(continued)

.

window opens.

List window.

window.

window.

window.

2-16

Use the following table to determine where to go next.

If you want to Go to

Obtain an overview of MPOA and NHRP operation. Chapter 1
Change defa ult settings for MPOA server

parameters.
Change default settings for NHRP client or server

parameters.
Obtain information about Site Manager parameters. Appendix A
Obtain information about BCC parameters Appendix B
Monitor ATM using the BCC show commands. Appendix C
Review an example MPOA and NHRP configuration

process.
Review the BCC configuration tree for MPOA and

NHRP services.

Chapter 3

Chapter 4

Appendix D

Appendix E

309249-14.00 Rev 00

Chapter 3

Customizing MPOA Services

Bay Networks supports Multi-Protocol over ATM (MPOA) server configuration.
MPOA is the ATM Forum standard that specifies a way to effi ciently transport
intersubnet, unicast data in a LANE environment. For general information about
the Bay Networks implementation of MPOA, see “Multi-Protocol over ATM” on
page 1-2.

This chapter describes how to customize an MPOA server configuration and
includes the following information:

305861-A Rev 00

Topic Page

Disabling and Reenabling an MPOA Service 3-2
Setting the MPS Address Generating Mode 3-3
Specifying an MPS Control ATM Address 3-5
Disabling and Reenabling MPOA Servers 3-8
Specifying the MPS Configuration Mode 3-10
Specifying a LECS ATM Address 3-11
Configuring a Unique Selector Byte for an MPS Address 3-14
Defining MPS Timer Values 3-16
Defining MPS Cache Values 3-25
Deleting MPOA Servers 3-28
Deleting an MPOA Service Record 3-29
Where to Go Next 3-31

You must create an MPOA service record before you can customize an MPS. For
information about creating an MPOA service record and starting the MPOA
server, see “Starting the MPOA Server” on page 2-2.

3-1

Configuring MPOA and NHRP Services

Disabling and Reenabling an MPOA Service

The MPOA service on an ATM interface is normally enabled, which allows
MPOA serv ers (MPSs) conf igured on that serv ice to oper ate normally. If you need
to functionally disable all MPSs configured on a service simultaneously, disable
the underly ing MPOA service. You can do this using either the BCC or Site
Manager.

Using the BCC

To disable an MPOA Servic e, navigate to that service and enter:

state disabled

or:
To reenable an MPOA Service, navigate to that service and enter:

state enabled

For example, on a System 5000 router, the following commands:

3-2

• Navigate from root (

stack#) level to the MPOA service on existing interface

atm/5/3/1. (Assume that ATM signalling was enabled earlier with atm/5/3/1.)

• Disable the MPOA service, functionally disabling all MPSs configured on
atm/5/3/1.

• Reenable the same MPOA service, functionally reenabling all MPSs
configured on atm/5/3/1.

stack# atm slot 5 module 3 connector 1
atm/5/3/1# mpoa-service
mpoa-service/5/3/1# state disabled
mpoa-service/5/3/1# state enabled
mpoa-service/5/3/1#

305861-A Rev 00

Using Site Manager

To disable or reenable the MPOA service record, complete the following tasks:

You do this System responds

Customizing MPOA Serv ic es

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Set the
on

Help

on page A-3.

5. Click on

6. Click on

7. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

Enable/Disable

or see the parameter description

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

parameter. Click

) that you

ATM1

. The MPOA Service Record window

The Select Connection Type window
opens.

opens.

window.

window.

window.

Setting the MPS Address Gen erating Mode

By default, a newly created MPS automatically uses the 13-byte ATM address
domain that it receives from the network switch. In this default mode (automatic
address generation), the MPS also uses the MAC address of the underlying ATM
interface as the basis for the 7-byte user suffix of the MPS address.

305861-A Rev 00

You can alternativ ely conf igur e a new MPS with an ATM address that you provi de
in the MPOA service re cord. Whether derived automatically by MPOA or
manually from the MPO A ser vice re cord, th e addres s assign ed to each MPS is i ts
control ATM address.

You can use the BCC or Site Manager to change the MPS address generation
mode from automatic to manual.

3-3

Configuring MPOA and NHRP Services

Using the BCC

To set the MPS address generating mode, navigate to the appropriate ATM
mpoa-service and enter the following command:

autogenerate { enabled

With this mode enabled, the MPS automatically generates an ATM address based
on information it receives from an LECS. If you disable this mode, the MPS uses
an ATM address based on the value you configured for the network-prefix and
user-suffix parameters of the MPOA service record. (If you disable address
autogeneration, be sure to configure values for network-prefix and user-suffix.)

For example, on a System 5000 router, the following commands:

• Navigate to the mpoa-service on ATM interface atm/5/3/1 on a System 5000

• Disable ATM address autogenerati on.

stack#
atm/5/3/1#
mpoa-service/5/3/1#

Using Site Manager

To set the MPS address generating mode, complete the following tasks:

You do this System responds

router.

atm/5/3/1

| disabled }

mpoa-service/5/3/1

autogenerate disabled

Site Manager Procedure

3-4

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Set the
parameter. Click on
parameter description on page A-3.

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

MPS Address Generate Mode

Help

) that you

ATM1

. The MPOA Service Record window

or see the

The Select Connection Type window
opens.

opens.

(continued)

305861-A Rev 00

Customizing MPOA Serv ic es

Site Manager Procedure

You do this System responds

5. Click on

6. Click on

7. Click on

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

(continued)

window.

window.

window.

Note:

The MPS Address Generate Mode parameter also appears in the MPS
List window and the MPS Configuration Parameters window for display
purposes only. You must configure this parameter at the Site Manager MPOA
service record level.

Specifying an MPS Control ATM Address

By default, an MPS automatically inherits its:

• ATM address domain (network prefix) from the network switch

• ATM end-station identifier (6 bytes of the user suffix) from the MAC address

• ATM selector byte value (the least-significant or last byte of the user suffix)

Howe ver , if you configu re the MPO A service to ignore this in formation, you must
manually specify the ATM network prefix and user suffix that you want MPS to
use in its ATM address. These two elements together define the full MPS control
ATM address.

Network Prefix

The control ATM address network prefix specifies the ATM domain of the MPS.
This 13-byte portion of the ATM address can have values ranging from
XX000000000000000000000000 to XXFFFFFFFFFFFFFFFFFFFFFFFF.

305861-A Rev 00

of the underlying ATM i nterface

from the highest sele ctor b yt e v al ue cur rentl y conf i gured, inc remented by 1 to
ensure uniqueness.

3-5

Configuring MPOA and NHRP Services

For user -conf ig ured netw ork pre fi x v alues, the XX b yte must contain 39 , 45, or 47.
These values define the authority and format identifier (AFI). The AFI byte
identifies the group responsible for allocating the prefix and the format the prefix
uses. For more information about the AFI byte, refer to the ATM Forum UNI
specification.

Entering an ATM address network prefix is opt ional . If you do not e nter a ne twork
prefix in the specified range, the MPS accepts the first pre fix value that it receives
from the loca l switch.

Note:

Each MPS obtains its ATM network prefix from the network prefix
assigned to the MPOA service record. This means that all MPSs that you add
to an MPOA service record will h ave the same ATM network prefix.

User Suffix

The control ATM address user part consi sts of a 6-b yte end-st ation ide ntif ier and a
1-byte selector field. This 7-byte portion of the ATM address can have values
ranging from 00000000000000 to FEFFFFFFFFFFFF.

Using the BCC

3-6

With ATM address generation in manual mode (autogenerati on disabled ), you can
use the BCC or Site Manager to manually configure a network prefix and user
suffix for the control ATM address.

To configure a value for the network prefix in the MPS control ATM address:

1.

Navigate to the appropriate mpoa-service prompt and ensure that the
autogenerate parameter has a value of disabled, for example:

mpoa-service/5/3/1#
autogenerate disabled

2.

Configure a value for the network-prefix portion of the MPS control

autogenerate

ATM address by entering:

network-prefix

3.

Configure a value for the user-suffix portion of the MPS control ATM

<13_byte_octet_string>

address by entering:

user-suffix

<7_byte_octet_string>

305861-A Rev 00

For example, on a System 5000 router, the following commands:

• Navigate to the MPOA service on atm/5/3/1.

• Check to ensure that ATM address generation is in manual mode.

• Set a control ATM address network prefix and user suffix.

mpoa-service/5/3/1# autogenerate
autogenerate disabled
mpoa-service/5/3/1# network-prefix 39aabbccddeeffaabbccddeeff
mpoa-service/5/3/1# user-suffix abcdefabcdefab
mpoa-service/5/3/1#

Using Site Manager

This procedure assumes that the MPS Address Generate Mode parameter in the
MPOA Server Attributes window has been set to manual.

Now specify the control ATM address network pref ix b y completi ng the fol lo wing
tasks:

Customizing MPOA Serv ic es

Site Manager Procedure

305861-A Rev 00

You do this System responds

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Set the
and

Ctrl A TM Addr User Part

Click on
descriptions on page A-4.

5. Click on

6. Click on

7. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

Ctrl ATM Addr Network Prefix

or see the parameter

Help

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

) that you

ATM1

. The MPOA Service Record window

parameters.

The Select Connection Type window
opens.

opens.

window.

window.

window.

3-7

Configuring MPOA and NHRP Services

Disabling and Reenabling MPOA Servers

When you finish mappin g an MPS to on e or more LECs on the same s lot, you can
use either the BCC or Site Manager to disable and subsequently reenable that
MPS for troubleshooting or other reasons.

Using the BCC

To disable a single MPS, navigate to the MPS you want to disable and enter:

state disabled

To reenable a disabled MPS, navigate to the MPS that you want to reenable and
enter:

state enabled

For example, on a System 5000 router, the following commands navigate to,
disable, and then reenable the MPS on mpoa-service/5/3/1:

Disabling:

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# mps/newyork
mps/newyork# state disabled

3-8

Reenabling:

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# mps/newyork
mps/newyork# state enabled

To disable or reenable multiple MPSs simultaneously, navigate to the MPOA
service on which the MPSs exist and enter:

disable mps/

<mpsname>

...

or:

enable mps/

<mpsname>

...

305861-A Rev 00

For example , on a Syste m 5000 ro uter, the following BCC commands navi gate to
and disable two MPSs on mpoa-service/5/3/1:

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# disable mps/newyork mps/chicago
mpoa-service/5/3/1#

Using Site Manager

To disable or reenable MPSs already mapped to LEC services, complete the
following tasks:

You do this System responds

Customizing MPOA Serv ic es

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the
on

Help

on page A-7.

7. Click on

8. Click on

9. Click on

10. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Enable/Disable

or see the parameter description

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

parameter. Click

) that you

ATM1

. The MPOA Service Record window

The Select Connection Type window
opens.

opens.

window.

window.

window.

window.

305861-A Rev 00

3-9

Configuring MPOA and NHRP Services

Specifying the MPS Configuration Mode

The MPS configuration mode determines whether the MPS obtains configuration
parameter values (for example, timer settings) automatically from the LAN
emulation configuration server (LECS) or from the manual settings that you
provide. Once you determine the source from which the router must obtain MPS
configuration parameter values, set the MPS configuration mode to either
automatic or manual, accordingly.

In manual mode, you either accept the router’s MPS default timer values or
change those v al ues to sui t you r re qui rements (see “Defini ng MPS Timer Values
on page 3-16

You can specify the MPS configuration mode using either the BCC or Site
Manager.

Using the BCC

To specify the configuration mode used by each MPS, navigate to the appropriate
MPS and enter:

).

”

3-10

config-mode {automatic

manual

|

}

For example, on a System 5000 router, the following commands navigate to
mps/newyork on interface atm/5/3/1 and change the MPS configuration mode
from its default value (automatic) to its alternate value (manual):

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# mps/newyork
mps/newyork# config-mode manual

305861-A Rev 00

Using Site Manager

To change the MPS configuration mode, complete the following tasks:

You do this System responds

Customizing MPOA Serv ic es

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the
Click on
description on page A-9.

7. Click on

8. Click on

9. Click on

10. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

MPS Config Mode

or see the parameter

Help

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

) that you

ATM1

parameter.

Specifying a LECS ATM Address

The Select Connection Type window
opens.

. The MPOA Service Record window

opens.

window.

window.

window.

window.

305861-A Rev 00

You can use either the BCC or Site Manager to specif y which LECS you want the
MPS to use when obtaining parameter information. Entering this ATM address is
optional; if you do not enter an address, the MPS automatically uses the
well-known LECS ATM address to open a configuration VCC.

3-11

Configuring MPOA and NHRP Services

To manually specify the LECS ATM address for an MPS, you must set the
following address elements:

• LECS ATM address network prefix

• LECS ATM address user suffix
These two elements together define the full ATM address of the LECS.

Note:

The combined netw ork pr efix and user suffix mu st matc h th e addre ss of

the LECS fo r the network.

Network Prefix

The LECS ATM address network prefix specifies the ATM domain of the MPS.
This 13-byte portion of the ATM address can range from
XX000000000000000000000000 to XXFFFFFFFFFFFFFFFFFFFFFFFF.

The XX b yte typically cont ains 39, 45, or 47. These v alues def ine the autho rity and
format identifier (AFI). The AFI byte identifies the group responsible for
allocating the prefix and t he format tha t the prefix uses. For more information
about the AFI byte, refer to the ATM Forum UNI specification.

User Suffix

Using the BCC

3-12

The LEC ATM address user suffix typically contains a 6-byte end-station
identifier and a 1-byte selector field. This 7-byte portion of the ATM address can
range from 00000000000000 to FEFFFFFFFFFFFF.

Using the BCC, you can specify both parts of the address as the value for one
parameter (lecs-address).

To specify a LECS ATM address for the MPS, navigate to the appro priate MPS
prompt and enter:

lecs-address

<20_byte_octet_string>

305861-A Rev 00

For example, on a System 5000 router, the following BCC commands navigate to
mps/eastcoast and specify the 20-byte ATM address of the LECS that server
should use.

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# mps/eastcoast
mps/eastcoast# lecs-address 45aabbccddeeff9988776655443311aabbccddff
mps/eastcoast#

Using Site Manager

Using Site Manager, you specify the network prefix and the user suffix as the
values for two separate parameters.

To specify a LECS ATM address, complete the following tasks:

You do this System responds

Customizing MPOA Serv ic es

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the
Click on
descriptions for the

Network Prefix
User Part

7. Click on

8. Click on

9. Click on

10. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

LECS ATM Address

or see the parameter

Help

LECS ATM Addr

and

LECS ATM Address

parameters on page A-6.

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

) that you

ATM1

. The MPOA Service Record window

parameter.

The Select Connection Type window
opens.

opens.

window.

window.

window.

window.

305861-A Rev 00

3-13

Configuring MPOA and NHRP Services

Note:

When you initially add a LECS ATM address, you do so by configuring
a separate ATM network prefix and ATM user part. However, when you
modify an existing LECS ATM address, you need only change one parameter
that contains both the ATM network prefix and the ATM user part suffix
portion of the LECS address.

Configuring a Unique Selector Byte for an MPS Address

If you disable ATM address autogeneration, a ne wly cre ated MPS uses the c ontrol
ATM address user suffix that you configured in the MPOA service record.
However, to ensure uniqueness among all ATM addresses used on the router, you
must additionally specify a unique value for the 1-byte selector field of the MPS
ATM address.

You can determine the user suffix values for MPSs currently configured on the
router by entering the following command at any BCC prompt:

show mpoa server

Based on the output of this command, assign to each new MPS a selector byte
value that is unique among selector byte values used for any other ATM addresses
configured on the router. For example, if the highest user suffix used by any
MPOA servers configured on the router is 0011223344556677 (selector byte
value = 77), you could assign the next available user suffix value,
0011223344556678 (selector byte value = 78).

You can set a unique selector byte value using either the BCC or Site Manager.

3-14

305861-A Rev 00

Using the BCC

Customizing MPOA Serv ic es

To customize the selector byte of the control ATM address value inherited by the
MPS, navigate to the desired MPS and enter:

control-atm-address

For example, on a System 5000 router, the following commands:

• Navigate to the MPOA service on atm/5/3/1.

• Navigate to mps/newyork and reenter the full control ATM address (from the

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/newyork#
mps/newyork#

Using Site Manager

This procedure assumes that the MPS Address Generate Mode parameter in the
MPOA Server Attributes window has been set to manual.

To specify the MPS control ATM address selector byte, complete the following
tasks:

<20_byte_octet_string>

MPOA servi ce le v el) as the v alue f or the MPS contr ol-atm- address pa ramete r ,
but with a unique value for the selector byte.

atm/5/3/1

mpoa-service/5/3/1

mps/newyork

control-atm-address 45112233445566778899AABBCC11223344556678

Site Manager Procedure

305861-A Rev 00

You do this System responds

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

. The MPS Configuration Parameters

Add

) that you

ATM1

. The MPOA Service Record window

The Select Connection Type window
opens.

opens.

window opens.

(continued)

3-15

Configuring MPOA and NHRP Services

Site Manager Procedure

You do this System responds

6. Set the

Byte

parameter description on page A-7.

7. Click on

8. Click on

9. Click on

10. Click on

11. Click on

MPS Ctrl ATM Address Selector

parameter. Click on

. You return to the MPS List window.

Done

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

Defining MPS Timer Values

Setting the MPS conf igurat ion mode to manu al allo ws you to c ustomize v alue s for
the following MPS timers:

• Keepalive time

Help

(continued)

or see the

window.

window.

window.

window.

3-16

• Keepalive lifetime

• Initial retry time

• Maximum retry time

•Give up time

• Default holding time

305861-A Rev 00

Customizing MPOA Serv ic es

Setting the Transmission Interval for MPOA Keepalive Packets

The keepalive time specifies how often the MPS must transmit MPOA keepalive
packets. By default, the value is 10 seconds. However, you can set the keepalive
time to any value from 1 to 300 seconds using either the BCC or Site Manager.

Using the BCC

To set the keepalive time, navigate to the desired MPS and enter:

keep-alive-time

For example, on a System 5000 router, the following BCC commands navigate
from root level to mps/eastcoast and set the MPS keepalive time to 100 seconds:

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/eastcoast#
mps/eastcoast#

Using Site Manager

To set the keepalive time, complete the following tasks:

You do this System responds

1. In the Configuration Manager window,

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the

7. Click on

<1-300

atm/5/3/1

mpoa-service/5/3/1

click on the ATM interface (
want to modify.

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Keep Alive T ime

on
on page A-12.

or see the parameter description

Help

. You return to the MPOA Service Record

Done

>

mps/eastcoast

keep-alive-time 100

Site Manager Procedure

The Select Connection Type window

) that you

ATM1

. The MPOA Service Record window

parameter. Click

opens.

opens.

window.

(continued)

305861-A Rev 00

3-17

Configuring MPOA and NHRP Services

Site Manager Procedure

You do this System responds

8. Click on

9. Click on

10. Click on

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

(continued)

window.

window.

window.

Setting the Valid Lifetime for Keepalive Packets

The keepali v e life time is t he le ngth of t ime that an MPOA client (MPC) considers
valid a k eepali v e packet se nt by its MPS. (The packe t contains it s keepa liv e v alue.)
By default, the keepalive lifetime is 35 seconds. However, you can set this value
from 3 to 1000 seconds using either the BCC or Site Manager.

Using the BCC

To set the keepalive lifetime, navigate to the desired MPS and enter:

keep-alive-lifetime

<3-1000

>

3-18

For example, on a System 5000 router, the following BCC commands navigate
from root level to mps/eastcoast and set the MPS keepalive lifetime to 500
seconds:

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/eastcoast#
mps/eastcoast#

atm/5/3/1

mpoa-service/5/3/1

mps/eastcoast

keep-alive-lifetime 500

305861-A Rev 00

Using Site Manager

To set the keepalive lifetime, complete the following tasks:

You do this System responds

Customizing MPOA Serv ic es

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the
Click on
description on page A-12.

7. Click on

8. Click on

9. Click on

10. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Keep Alive Life Time

or see the parameter

Help

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

Setting the Initial Retry Time

The Select Connection Type window

) that you

ATM1

. The MPOA Service Record window

parameter.

opens.

opens.

window.

window.

window.

window.

305861-A Rev 00

The initial ret ry ti me is used by the MPOA retry mechani sm. By def ault, t he value
is 5 seconds. However, you can set this value from 1 to 300 seconds using either
the BCC or Site Manager.

3-19

Configuring MPOA and NHRP Services

Using the BCC

To set the initial retry time, navigate to the appropriate MPS and enter:

initial-retry-time

For example, on a System 5000 router, the following commands navigate from
root level to mps/eastcoast and set the MPS initial retry time to 50 seconds:

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/eastcoast#
mps/eastcoast#

Using Site Manager

To set the initial r etry time, complete the following tasks:

You do this System responds

1. In the Configuration Manager window,

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the

7. Click on

8. Click on

9. Click on

10. Click on

<1-300

atm/5/3/1

mpoa-service/5/3/1

click on the ATM interface (
want to modify.

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Initial Retry Time

Click on
description on page A-11.

or see the parameter

Help

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

>

mps/eastcoast

initial-retry-time 50

Site Manager Procedure

The Select Connection Type window

) that you

ATM1

. The MPOA Service Record window

parameter.

opens.

opens.

window.

window.

window.

window.

3-20

305861-A Rev 00

Setting the Maximum Retry Time

The maximum retry time is used by the MPOA retry mechanism. By de fau lt, the
value is 40 se conds. However, yo u can s et th is value from 10 to 300 seconds using
either the BCC or Site Manager.

Using the BCC

To set the maximum retry time, navigate to the desired MPS and enter:

Customizing MPOA Serv ic es

retry-time-maximum

For example, on a System 5000 router, the following commands navigate from
root level to mps/eastcoast and set the MPS maximum retry time to 200 seconds:

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/eastcoast#
mps/eastcoast#

Using Site Manager

To set the maximum retry time, complete the following tasks:

You do this System responds

1. In the Configuration Manager window,

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the

7. Click on

<10-300

atm/5/3/1

mpoa-service/5/3/1

mps/eastcoast

retry-time-maximum 200

click on the ATM interface (
want to modify.

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Maximum Retry Time

Click on
description on page A-13.

or see the parameter

Help

. You return to the MPOA Service Record

Done

>

Site Manager Procedure

The Select Connection Type window

) that you

ATM1

. The MPOA Service Record window

parameter.

opens.

opens.

window.

(continued)

305861-A Rev 00

3-21

Configuring MPOA and NHRP Services

Site Manager Procedure

You do this System responds

8. Click on

9. Click on

10. Click on

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

(continued)

window.

window.

window.

Setting the Time to Wait for Responses to Resolution Requests

The give-up time is the minimum amount of time that the MPS must wait before
giving up on a pending resolution request. By default, the value is 40 seconds.
However, you can set this value from 5 to 300 seconds using either the BCC or
Site Manager.

Using the BCC

To set the give-up time, navigate to the desired MPS and enter:

give-up-time

<5-300

>

3-22

For example, on a System 5000 router, the following BCC commands navigate
from root level to mps/eastcoast and set the MPS give-up time to 175 seconds:

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/eastcoast#
mps/eastcoast#

atm/5/3/1

mpoa-service/5/3/1

mps/eastcoast

give-up-time 175

305861-A Rev 00

Using Site Manager

To set the give-up time, complete the following tasks:

You do this System responds

Customizing MPOA Serv ic es

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the

or see the parameter description on

Help

page A-10.

7. Click on

8. Click on

9. Click on

10. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Give Up Time

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

parameter. Click on

) that you

ATM1

. The MPOA Service Record window

The Select Connection Type window
opens.

opens.

window.

window.

window.

window.

Setting the Valid Interval for Replies to Resolution Requests

305861-A Rev 00

The default holding time determines how long the client considers resolution
replies held in the local cache as valid. By default, the value is 20 minutes.
However, you can set this value from 1 to 120 minutes using either the BCC or
Site Manager.

3-23

Configuring MPOA and NHRP Services

Using the BCC

To set the default holding time, navigate to the desired MPS and enter:

default-holding-time

For example, on a System 5000 router, the following BCC commands navigate
from root level to mps/eastcoast and set the MPS default holding time to
90 minutes:

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/eastcoast#
mps/eastcoast#

Using Site Manager

To set the default holding time, complete the fo llowin g tasks:

You do this System responds

1. In the Configuration Manager window,

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the

7. Click on

8. Click on

9. Click on

10. Click on

<1-120

atm/5/3/1

mpoa-service/5/3/1

mps/eastcoast

default-holding-time 90

click on the ATM interface (
want to modify.

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Default Holding Time

Click on
description on page A-10.

or see the parameter

Help

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

>

Site Manager Procedure

The Select Connection Type window

) that you

ATM1

. The MPOA Service Record window

parameter.

opens.

opens.

window.

window.

window.

window.

3-24

305861-A Rev 00

Defining MPS Cache Values

The MPS can contain cache information upon initialization and can accumulate
this information during its operation. Bay Networks provides control over this
cache information.

Customizing MPOA Serv ic es

Caution:

The values you set for cache parameters affect router memory

resources. Use caution when setting higher values.

Setting the Initial Cache Size

The initial cache size specifies the maximum number of cache units that the MPS
can keep upon initialization. By default, the MPS can have a maximum initial
cache size of 100 units. ( Its act ual in itia l si ze is typ icall y zero.) You can use either
the BCC or Site Manager to set the maximum initial cache size to any value from
50 to 500 units.

Using the BCC

To set the initial cache size, navigate to the appropriate MPS and enter:

initial-cache-size

For example, on a System 5000 router, the following BCC commands navigate
from root level to mps/eastcoast and set the MPS initial cache size to 150 units:

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# mps/eastcoast
mps/eastcoast# initial-cache-size 150
mps/eastcoast#

<50-500

>

305861-A Rev 00

3-25

Configuring MPOA and NHRP Services

Using Site Manager

To set the initial cache size, complete the following tasks:

You do this System responds

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

6. Set the
Click on
description on page A-11.

7. Click on

8. Click on

9. Click on

10. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

Initial Cache Size

or see the parameter

Help

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

Setting the Maximum Cache Size

The Select Connection Type window

) that you

ATM1

. The MPOA Service Record window

parameter.

opens.

opens.

window.

window.

window.

window.

3-26

The maximum cache size specifies the maximum number of cache units that the
MPS can store at any time. By default, the MPS can have a maximum cache size
of 500 units. However, you can use either the BCC or Site Manager to set the
maximum cache size to any value from 100 to 2000 units.

305861-A Rev 00

Using the BCC

Customizing MPOA Serv ic es

To set the maximum cache size, navigate to the appropriate MPS and enter:

maximum-cache-size

For example, on a System 5000 router, the following BCC commands navigate
from root level to mps/eastcoast and set the MPS maximum cache size to 300
units:

stack#
atm/5/3/1#
mpoa-service/5/3/1#
mps/eastcoast#
mps/eastcoast#

Using Site Manager

To set the maximum cache size, complete the following tasks:

You do this System responds

1. In the Configuration Manager window,

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to modify.

<100-2000

atm/5/3/1

mpoa-service/5/3/1

mps/eastcoast

maximum-cache-size 300

click on the ATM interface (
want to modify.

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

>

Site Manager Procedure

The Select Connection Type window

) that you

ATM1

. The MPOA Service Record window

opens.

opens.

305861-A Rev 00

6. Set the
Click on
description on page A-13.

7. Click on

8. Click on

Maximum Cac he Size

or see the parameter

Help

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

parameter.

window.

window.

(continued)

3-27

Configuring MPOA and NHRP Services

You do this System responds

9. Click on

10. Click on

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

Deleting MPOA Servers

You can use either the BCC or Si te Mana ger t o del et e one or mor e MPSs f rom an
MPOA service record.

Using the BCC

To delete a single MPS, navigate to the MPS that you want to delete and enter:

delete

For example, on a System 5000 router, the following commands navigate to and
delete the MPS on mpoa-service/5/3/1:

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# mps/newyork
mps/newyork# delete
mpoa-service/5/3/1#

Site Manager Procedure

window.

window.

(continued)

3-28

If you want to delete multiple MPSs simultaneously, navigate to the MPOA
service on which the MPSs exist, and enter:

delete mps/

<mpsname>

...

For example, on a System 5000 router, the following commands navigate to and
delete two MPSs on mpoa-service/5/3/1:

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# delete mps/newyork mps/chicago
mpoa-service/5/3/1#

305861-A Rev 00

Using Site Manager

To delete an individual MPS, complete the following tasks:

You do this System responds

Customizing MPOA Serv ic es

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on the MPS that you want to delete.

6. Click on

7. Click on

8. Click on

9. Click on

10. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. The MPS List window opens.

MPS

. Site Manager deletes the MPS.

Delete

. You return to the MPOA Service Record

Done

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

) that you

ATM1

. The MPOA Service Record window

Deleting an MPOA Service Record

You can delete MPOA services from an A TM interface completely using either the
BCC or Site Manager.

The Select Connection Type window
opens.

opens.

window.

window.

window.

window.

Using the BCC

305861-A Rev 00

Navigate to the MPOA service you want to delete and enter:

delete

3-29

Configuring MPOA and NHRP Services

For example, on a System 5000 router, the following commands navigate to and
delete the MPOA service on interface atm/5/3/1:

stack# atm/5/3/1
atm/5/3/1# mpoa-service/5/3/1
mpoa-service/5/3/1# delete
atm/5/3/1#

Using Site Manager

To delete MPOA from the interface entirely, you must delete the MPOA service
record. To delete the MPOA service record, complete the following tasks:

You do this System responds

Site Manager Procedure

1. In the Configuration Manager window,
click on the ATM interface (
want to modify.

2. Click on

3. Click on

4. Click on

5. Click on

6. Click on

7. Click on

8. Click on

. The Edit ATM Connector window opens.

ATM
MPOA Server Attributes

. Site Manager asks whet her you really

Delete

. Site Manager deletes the service record.

Yes

. You return to the Edit ATM Connector

Done

. You return to the Select Connection Type

Done

. You return to the Configuration Manager

Done

) that you

ATM1

. The MPOA Service Record window

The Select Connection Type window
opens.

opens.

want to delete MPOA from this interface.

window.

window.

window.

3-30

305861-A Rev 00

Where to Go Next

Use the following table to determine where to go next.

If you want to Go to

Customizing MPOA Serv ic es

Learn about ATM concepts.
Learn about MPOA and NHRP concepts. Chapter 1
Change default settings for NHRP client or server

parameters.
Obtain information about Site Manager MPOA and

NHRP parameters.
Obtain information about BCC MPOA and NHRP

parameters.
Monitor MPOA and NHRP using t he BCC show

commands.
Review a BCC MPOA/NHRP example configuration

sequence.
Review the BCC MPOA/NHR P configuration tree. Appendix E

Configuring ATM Services

Chapter 4

Appendix A

Appendix B

Appendix C

Appendix D

305861-A Rev 00

3-31

Chapter 4

Customizing NHRP Services

This chapter includes the following information:

Accessing NHRP Client and Server Global Parameters 4-2
Disabling NHRP on an LEC or PVC or Classical IP Service 4-4
Deleting NHRP from an LEC or PVC or SVC Service 4-6
Deleting NHRP Globall y 4-7
Where to Go Next 4-8

Note:

settings on the router. However, if you need to customize NHRP parameter
values, you can use either the BCC or Site Manager to accomplish that task.

309249-14.00 Rev 00

We recommend that you start and maintain NHRP with all default

4-1

Configuring MPOA and NHRP Services

The BCC and Site Manager allow you to edit values for the following NHRP
parameters:

BCC Parameter Equivalent Site Manager Parameter

client Client Enable
client-registration-interval Client Reg Interval
client-hold-time Client Hold Time
client-request-timeout Client Request Timeout
client-request-retry Client Request Retry
client-requests-maximum Client Max Pending Request Entries
server Server Enable
server-forwarding Server Forward Enable
server-next-hop-maximum Server Max Next Hop Entries
server-requests-maximum Server Max Pending Request Entries
next-hop-cache-size Max Next Hop Cache Size

The BCC and Site Manager also allow you to modify the configured state of
NHRP on a PVC or LEC service. (See ““

Classical IP Service” on page 4-4.”)

Disabling NHRP on an LEC or PVC or

Accessing NHRP Client and Server Global Parameters

You can customize the configurable global parameters of NHRP, using either the
BCC or Site Manager.

Using the BCC

To access NHRP client and server parameters from root level (box# or stack#),
enter:

nhrp

Once you enter the NHRP context, enter the
parameters you can modify using the BCC and what are their current (default)
values.

4-2

info

command to see which

309249-14.00 Rev 00

Customizing NHRP Services

For example, the following BCC commands:

• Navigate to global NHRP.

• List NHRP client and server parameters that you can modify.

stack# nhrp
nhrp/atm/ip# info
client enabled
client-registration-interval 25
client-hold-time 30
client-request-timeout 10
client-request-retry 3
client-requests-maximum 100
server enabled
server-forwarding enabled
server-next-hop-maximum 5
server-requests-maximum 100
next-hop-cache-size 16

Read about these NHRP parameters in Appendix B. To modify any configurable
NHRP client or server parameter, enter:

<parameter_name> <value>

For example, to change the value for the client-registration-interval to 35 seconds,
and the server-next-hop-maximum to 6 entries, enter the fo llowing commands:

nhrp/atm/ip# client-registration-interval 35
nhrp/atm/ip# server-ne xt- hop-m axi mum 6

Using Site Manager

To edit an NHRP record, complete the following tasks:

You do this System responds

1. In the Configuration Manager window,

2. Choose IP. The IP menu opens.

3. Choose

4. Choose

309249-14.00 Rev 00

click on

Site Manager Procedure

The Protocols menu opens.

Protocols

NHRP
NhrpNetTable

.

. The NHRP menu opens.

. The NHRP NetEntry List window opens.

(continued)

4-3

Configuring MPOA and NHRP Services

Site Manager Procedure

You do this System responds

5. Click on the NHRP entry that you want to
edit.

6. Edit the following parameters as required:

• NHRP Request Path

• Client Enable

• Client Reg Interval

• Client Hold Time

• Client Request Timeout

• Client Request Retry

• Client Max Pending Request Entries

• Server Enable

• Server Forward Enable

• Server Max Next Hop Entries

• Server Max Pending Request

Entries

Click on
descriptions beginning on page A-14.

7. Click on

or see the parameter

Help

. You return to the Configuration Manager

Done

(continued)

Site Manager displays the current NHRP
entry-specific parameters .

window.

Disabling NHRP on an LEC or PVC or Classical IP Service

Using the BCC

4-4

You can use either the BCC or Site Ma nager to disable NHRP on an LEC, PVC, or
SVC (ATM Classical IP) service.

Note:

You cannot disable NHRP globally ( across all ATM slots) on the router .
You can disable NHRP only on an individual LEC, PVC, or Classical IP
(SVC) service.

To disable NHRP on an LEC, PVC, or SVC (ATM Classical IP) service, navigate
to NHRP on the appropriate service and enter:

disable

309249-14.00 Rev 00

For example, on a System 5000 router, the following BCC commands navigate to
the LEC service on atm/5/3/1 and disable NHRP on that service:

stack# atm/5/3/1
atm/5/3/1# lec-service/newyork
lec-service/newyork# nhrp
nhrp/newyork# disable

Using Site Manager

To disable an NHRP interface, complete the following tasks:

You do this System responds

Customizing NHRP Services

Site Manager Procedure

1. In the Configuration Manager window,
click on

2. Choose IP. The IP menu opens.

3. Choose

4. Choose

5. Click on the NHRP interface that yo u wa nt
to disable.

6. Set the
Click on
description on page A-14.

7. Click on

Protocols

NHRP
Interfaces

Enable

Help

Done

.

. The NHRP menu opens.

. The NHRP Interface List window opens.

parameter to

or see the parameter

. You return to the Configuration Manager

Disable

The Protocols menu opens.

.

window.

309249-14.00 Rev 00

4-5

Configuring MPOA and NHRP Services

Deleting NHRP from an LEC or PVC or SVC Serv ice

You can use either the BCC or Site Manager to delete NHRP from an LEC, PVC,
or SVC (ATM Classical IP) service.

Using the BCC

T o delete NHRP from an LEC, PVC, or SVC (ATM Classical IP) service, na vi gate
to the appropriate service and enter:

delete

For example, on a System 5000 router, the following BCC commands navigate to
the LEC service on atm/5/3/1 and delete NHRP from that service:

stack# atm/5/3/1
atm/5/3/1# lec-service/newyork
lec-service/newyork# nhrp
nhrp/newyork# delete
lec-service/newyork#

Using Site Manager

4-6

To delete an NHRP interface, complete the following tasks:

Site Manager Procedure

You do this System responds

1. In the Configuration Manager window,
click on

2. Choose IP. The IP menu opens.

3. Choose

4. Choose

5. Click on the NHRP interface that yo u wa nt
to delete.

6. Click on

7. Click on

Protocols

NHRP
Interfaces

Delete

Done

.

. The NHRP menu opens.

. The NHRP Interface List window opens.

. Site Manager deletes the NHRP interface

. You return to the Configuration Manager

The Protocols menu opens.

you selected.

window.

309249-14.00 Rev 00

Deleting NHRP Globally

You can use either the BCC or Site Manager to delete NHRP services globally
from the router.

Using the BCC

To delete NHRP using the BCC, you must first delete all NHRP interfaces
configured on LEC, PVC, or SVC (Classical IP) services, then delete the global
NHRP object.

For example, on a System 5000 router, the following commands:

• Delete NHRP from lec-service/newyork and from pvc-service/chicago.

• Delete global NHRP from all slots.

stack# atm/5/3/1
atm/5/3/1# lec-service/newyork
lec-service/newyork# nhrp
nhrp/newyork# delete
lec-service/newyork# pvc-service/chicago
pvc-service/chicago# nhrp
nhrp/chicago# delete
pvc-service/chicago# stack
stack# nhrp
nhrp/atm/ip# delete
stack#

Customizing NHRP Services

Using Site Manager

To globally delete NHRP, complete the following tasks:

You do this System responds

1. In the Configuration Manager window,

2. Choose IP. The IP menu opens.

3. Choose

309249-14.00 Rev 00

click on

Site Manager Procedure

The Protocols menu opens.

Protocols

NHRP

.

. The NHRP menu opens.

(continued)

4-7

Configuring MPOA and NHRP Services

You do this System responds

4. Choose

5. Click on

Where to Go Next

Use the following table to determine where to go next.

If you want to Go to

Obtain an overview of MPOA and NHRP operation. Chapter 1
Change default settings for MPOA server parameters. Chapter 3
Obtain information about Site Manager NHRP parameters. Appendix A
Obtain information about BCC NHRP parameters. Appendix B
Monitor ATM using the BCC show commands. Appendix C
Review a BCC MPOA/NHRP example configuration sequence. Appendix D
Review the BCC configuration tree for MPOA and NHRP services. Appendix E

Site Manager Procedure

Delete NHRP

. You return to the Configuration Manager

Yes

. Site Manager prompts whether you want

(continued)

to delete NHRP.

window.

4-8

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Appendix A

Site Manager Pa rameters

This appendix contains the Site Manager parameter descriptions for MPOA and
NHRP services. You can display the same information using Site Manager online
Help.

The values you set for some parameters depend on the current settings of other
(dependent) parameters.

This appendix contains the following information:

Topic Page

Accessing ATM Parameters A-1
MPOA Service Parameters A-3
MPOA Server (MPS) Para meters A-5
NHRP Global Parameters A-14
NHRP Interface Parameters A-19

Accessing ATM Parameters

You can access ATM parameters using either a Site Manager window path or
menu path. Both of these paths begin at the Configuration Manager window.

The window path provides detailed information about individual ATM interfaces.
The menu path provides global information about all interfaces on the router.

309249-14.00 Rev 00

A-1

Configuring MPOA and NHRP Services

Accessing ATM MPOA Parameters Through a Window Path

ATM uses two main windows to access ATM parameters: the Select Connection
Type window and the Edit ATM Connector window. You access MPOA
parameters through the Edit ATM Connector window.

The Edit ATM Connector window acts as a control access point for all ATM
parameters. This window provides information specific to each individual ATM
interface.

For any given interface, the Edit ATM Connector window provides access to the
MPOA server attributes. By clicking on the MPOA Server Attributes button, you
can access and edit the parameters associated with MPOA on that specific ATM
interface.

Accessing ATM MPOA and NHRP Parameters Through a Menu Path

The Protocols menu in the Configuration Manager window provides global
interface and signaling information about every ATM interface on the router. For
example, if you configure four ATM link modules on the router, and you select
Protocols > ATM > Interfaces, the ATM Interface List window displays all four
ATM interfaces that you configured on the router.

To access MPOA parameters, use the following menu path:

Configuration Manager > Circuits > Edit Cir cuits > Edit > ATM > MPOA Server Attrib utes

To access NHRP parameters, use the following menu path:

Configuration Manager > Protocols > IP > NHRP

The following sections provide additional menu paths for accessing MPOA or
NHRP parameters.

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MPOA Service Parameters

This section describes the parameters for configuring an ATM MPOA service
record.

Parameter: Enable/Disable

Site Manager Parameters

Path: Configuration Manager > Circuits > Edit Circuits >

Server Attributes

Default: Enable

Options: Enable

Function: Enables or disables the MPOA service record on this interface.

Instructions: Accept the default, Enable, if you want the MPOA service record to remain

enabled on this interface. Select Disable if you do not want the MPOA service
record enabled on this inte rface.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.1.1.2

Back to “Disabling and Reenabling an MPOA Service” on page 3-2.

Parameter: MPS Address Generate Mode

Path: Configuration Manager > Circuits > Edit Circuits >

Server Attributes

Default: Automatic

Options: Automatic

Function: Specifies whether the MPS uses the network prefix it receives from the local

switch (automatic mode) or uses address information that you specify (manual
mode).

Instructions: Accept the default, Automatic, if you want the server to use the network prefix it

receives from the local switch, and the MAC address from the underlying ATM
interface. Select Manual if you want the server to use the address information
(network prefix and user suffix) that you specify.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.1.1.7

Disable

|

|

Manual

Edit > ATM > MPOA

Edit > ATM > MPOA

309249-14.00 Rev 00

Back to “Setting the MPS Address Generating Mode” on page 3-3.

A-3

Configuring MPOA and NHRP Services

Parameter: Ctrl ATM Addr Network Prefix

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes

Default: None

Options: XX000000000000000000000000 to XXFFFFFFFFFFFFFFFFFFFFFFFF

where XX = 39, 45, or 47

Function: Specifies the network prefix of the ATM address for this MPOA service record.

The network prefix specifies the ATM domain of which any MPOA server will
be a member . The router u ses the MPOA s ervice r ecord addr ess inf ormation a s a
base when creating a new MPS.

The XX byte must be 39, 45, or 47. This value defines the authority and format
identifier (AFI) . The AFI byte i dent ifi es the gro up respo nsi ble for alloca ting t he
prefix and the format the prefix uses. For more information about the AFI byte,
see the ATM Forum UNI specification.

The router configures thi s value for you in aut omatic mode. You have the option
of configuring this value in manual mode.

Instructions: Enter a network prefix (manual mode only).

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.5

A-4

Back to “Specifying an MPS Control ATM Address” on page 3-5.

309249-14.00 Rev 00

Site Manager Parameters

Parameter: Ctrl ATM Addr User Part

Path: Configuration Manager > Circuits > Edit Circuits >

Server Attributes

Default: None

Options: 00000000000000 to FFFFFFFFFFFFFF

Function: Specifies the user part (suffix) of the ATM address for the MPOA service

record. The user part suffix consists of a 6-byte end-station identifier and a
1-byte selector field. The router uses the MPOA service record address
information as a base when creating a new MPS.

The router configures t his value f or you in automati c mode. You must configure
this value in manual mode.

Instructions: Enter an ATM address user part (manual mode only).

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.5

Back to “Specifying an MPS Control ATM Address” on page 3-5.

Edit > ATM > MPOA

MPOA Server (MPS) Par ame ters

This section describes the parameters for configuring an ATM MPOA server
(MPS) on an MPOA service record. You must:

• Add a new MPS (see the next section, “MPS Add Parameters

• Customize MPS operational parameters (see “

on page A-7).

MPS Add Parameters

This section describes the parameters for creating (adding) a new MPS on an
MPOA service.

309249-14.00 Rev 00

”).

MPS Operational Parameters”

A-5

Configuring MPOA and NHRP Services

Parameter: LECS ATM Addr Network Prefix

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS > Add

Default: None

Options: XX000000000000000000000000 to XXFFFFFFFFFFFFFFFFFFFFFFFF

where XX = 39, 45, or 47

Function: Specifies the ATM network prefix of the LECS from which a new MPS can

obtain configuration values automatically. (The MPS Config Mode must be set
to automatic for this to occ ur.) The network prefix specifies the ATM domain of
which this MPOA server is a p art.

The XX byte must be 39, 45, or 47. This value defines the authority and format
identifier (AFI) . The AFI byte i dent ifi es the gro up respo nsi ble for alloca ting t he
prefix and the format the prefix uses. For more information about the AFI byte,
see the ATM Forum UNI specification.

Instructions: Enter the network prefix for the LECS you want the MPS to use. Use the

network prefix of the well-known LECS if you have no other address to use.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.15

Back to “Specifying a LECS ATM Address” on page 3-11.

Parameter: LECS ATM Address User Part

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS > Add

Default: None

Options: 00000000000000 to FFFFFFFFFFFFFF

Function: Specifies the user part (suffix) of the LECS from which a new MPS can obtain

configuration values automatically. (The MPS Config Mode must be set to
automatic for this to occur.). The user part suf fi x consi sts o f a 6- byte e nd- stat ion
identifier and a 1-byte selector field.

The user part and the network prefix form a complete ATM address.

Instructions: Enter the ATM address user part of the LECS that you want the MPS to use.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.15

Back to “Specifying a LECS ATM Address” on page 3-11.

A-6

309249-14.00 Rev 00

Site Manager Parameters

Parameter: MPS Ctrl ATM Address Selector Byte

Path: Configuration Manager > Circuits > Edit Circuits >

Server Attributes

Default: None

Options: 00 to FF

Function: Specifies a 1-byte selector field for the MPS. You need only configure this

parameter when the control ATM address generate mode is manual.
The MPS uses the end-station identifier of the service record control ATM

address user part. However, each MPS must have a unique selector field value.

Instructions: Enter a unique 1-byte selector field for the MPS.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.5

Back to “Configuring a Unique Selector Byte for an MPS Address” on page
3-14.

MPS > Add

>

Edit > ATM > MPOA

MPS Operational Parameters

This section describes the operational parameters you can customize for a new
MPS.

Parameter: Enable/Disable

Path: Configuration Manager > Circuits > Edit Circuits >

Server Attributes

Default: Enable

Options: Enable

Function: Enables or disables the selected MPS.

Instructions: Accept the default, Enable, if you want the MPS to remain enabled on this

interface. Select Disable if you do not want the MPS enabled on this interface.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.1.1.2

Back to “Disabling and Reenabling MPOA Servers” on page 3-8.

309249-14.00 Rev 00

Disable

|

>

MPS

Edit > ATM > MPOA

A-7

Configuring MPOA and NHRP Services

Parameter: MPS Address Generate Mode

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: Automatic

Options: Automatic

Manual

|

Function: Display only. You can configure this parameter only at the service record level.

Instructions: None

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.1.7

Back to “Setting the MPS Address Generating Mode” on page 3-3.

Parameter: Ctrl ATM Addr Network Prefix (Optional)

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: None

Options:

XX

000000000000000000000000 to XXFFFFFFFFFFFFFFFFFFFFFFFF

where XX = 39, 45, or 47

Function: Display only. You can configure this parameter only at the service record level.

Instructions: None

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.5

Back to “Specifying an MPS Control ATM Address” on page 3-5.

A-8

309249-14.00 Rev 00

Site Manager Parameters

Parameter: Ctrl ATM Addr User Part

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: None

Options: 00000000000000 to FFFFFFFFFFFFFF

Function: Display only. You can configure this parameter only at the service record level.

Instructions: None

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.5

Back to “Specifying an MPS Control ATM Address” on page 3-5.

Parameter: MPS Config Mode

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: Automatic

Options: Automatic

Manual

|

Function: Specifies whether the MPS configures automatically (that is, uses timer

information from the LECS) or manually (that is, uses timer information from
the MPS List window).

Instructions: Accept the default, Automatic, if you want the server to configure automatically.

If automatic, you must enter in the MPS Add windo w the ATM address network
prefix and user su ffi x of the LEC that y ou want th e MPS to use . Select Manual if
you do not want t he ser ver t o autoconfigure. If manu al , you do not have to e nte r
any ATM address information in the MPS Add window.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.4

309249-14.00 Rev 00

Back to “Specifying the MPS Configuration Mode” on page 3-10.

A-9

Configuring MPOA and NHRP Services

Parameter: Default Holding Time

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 20

Options: 1 to 120

Function: Specifies in minutes the time used in NHRP resolution replies.

Instructions: Accept the default, 20, or enter a value from 1 to 120.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.11

Back to “Setting the Valid Interval for Replies to Resolution Requests” on page
3-23.

Parameter: Give Up Time

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 40

Options: 5 to 300

Function: Specifies in seconds the maximum amount of time that the MPS must wait

before giving up on a pending resolution request.

Instructions: Accept the default, 40, or enter a value from 5 to 300.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.10

A-10

Back to “Setting the Time to Wait for Responses to Resolution Requests” on
page 3-22.

309249-14.00 Rev 00

Site Manager Parameters

Parameter: Initial Cache Size

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 100

Options: 50 to 500

Function: Specifies in cache units the maximum amount of cache information that the

MPS can keep upon initialization.

Instructions: Accept the default, 100, or enter a value from 50 to 500.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.13

Back to “Setting the Initial Cache Size” on page 3-25.

Parameter: Initial Retry Time

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 5

Options: 1 to 300

Function: Specifies the initial retry time (in seconds) used by the MPOA retry mechanism.

Instructions: Accept the default, 5, or enter a value from 1 to 300.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.8

309249-14.00 Rev 00

Back to “Setting the Initial Retry Time” on page 3-19.

A-11

Configuring MPOA and NHRP Services

Parameter: Keep Alive Life Time

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 35

Options: 3 to 1000

Function: Specifies the length of time (in seconds) that an MPS can consider a keepalive

packet as valid.

Instructions: Accept the default, 35, or enter a value from 3 to 1000.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.7

Back to “Setting the Valid Lifetime for Keepalive Packets” on page 3-18.

Parameter: Keep Alive Time

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 10

Options: 1 to 300

Function: Specifies how often (in seconds) the MPS must transmit MPOA keepalive

packets.

Instructions: Accept the default, 10, or enter a value from 1 to 300.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.6

A-12

Back to “Setting the Transmission Interval for MPOA Keepalive Packets” on
page 3-17.

309249-14.00 Rev 00

Site Manager Parameters

Parameter: Maximum Cache Size

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 500

Options: 100 to 2000

Function: Specifies in cache units the maximum amount of cache information that the

MPS can store at any time.

Instructions: Accept the default, 500, or enter a value from 100 to 2000.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.14

Back to “Setting the Maximum Cache Size” on page 3-26.

Parameter: Maximum Retry Time

Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > MPOA

Server Attributes > MPS

Default: 40

Options: 10 to 300

Function: Specifies the maximum retry time (in seconds) used by the MPOA retry

mechanism.

Instructions: Accept the default, 40, or enter a value from 10 to 300.

MIB Object ID: 1.3.6.1.4.1.18.3.5.9.10.2.1.9

309249-14.00 Rev 00

Back to “Setting the Maximum Retry Time” on page 3-21.

A-13

Configuring MPOA and NHRP Services

NHRP Global Parameters

This section describes the NHRP global parameters.

Parameter: Client Enable

Path: Configuration Manager > Protocols > IP > NHRP > NhrpNetTable

Default: Enable

Options: Enable

Function: Enables or disables the NHRP client entity on this ATM interface.

Instructions: Accept the default, Enable, to enable the NHRP client entity. This enables

MPOA to establish ATM network cut-through paths. Select Disable to disable
the NHRP client entity and prevent MPOA from establishing ATM network
cut-through paths.

MIB Object ID: 1.3.6.1.4.1.18.3.5.3.23.1.1.5

Back to “Accessing NHRP Client and Server Global Parameters” on page 4-2.

|

Disable

Parameter: Client Reg Interval

Path: Configuration Manager > Protocols > IP > NHRP > NhrpNetTable

Default: 25

Options: 10 to 200

Function: Specifies the registration interval, in seconds, for the NHRP client entity. The

registration interval determines how often the NHRP client generates NHRP
registration requests to refresh and update its next-hop cache.

Instructions: In most configur ations, acce pt the defaul t value. When using a nondefault va lue,

make it smaller than the current value of the Client Hold Time parameter.

MIB Object ID: 1.3.6.1.4.1.18.3.5.3.23.1.1.6

Back to “Accessing NHRP Client and Server Global Parameters” on page 4-2.

A-14

309249-14.00 Rev 00