Avaya Data Compression User Manual
Configuring Data Compression Services
BayRS Version 13.10
Site Manager Software Version 7.10
Part No. 117352-D Rev. 00
November 1998
4401 Great America Pa rkw ay 8 Federal S treet
Santa Clara, CA 95054 Billerica, MA 01821
Copyright © 1998 Bay Networks, Inc.
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117352-D Rev. 00
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117352-D Rev. 00 iii
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iv 117352-D Rev. 00
Contents
Preface
Before You Begin .............................................................................................................xiii
Text Conventions .............................................................................................................xiv
Acronyms ........................... .......................... .......................... ......................... ................. xv
Bay Networks Technical Publications ..............................................................................xvi
How to Get Help .............................................................................................................xvii
Chapter 1
Starting Compres sion
Summary of Bay Networks Data Compression Features ...............................................1-2
Software-Based Data Compression .........................................................................1-2
Hardware-Based Data Compression for the BN Platform ........................................1-3
Previous Hardware-Based Data Compression .........................................................1-4
Preparing a Configuration File for Data Compression ....................................................1-4
Configuring Software Compression ................................................................................1-5
Enabling Compression for PPP ................................................................................1-6
Enabling Compression for Frame Relay ...................................................................1-6
Enabling Compression for X.25 ................................................................................1-8
Configuring Hardware Compression ..............................................................................1-9
Configuring Compression for a BN (FRE-2-060E Processor) ..................................1-9
Configuring Compression for a BN (Octal Synchronous Link Module) ..................1-10
Configuring Compression for an ASN ....................................................................1-11
For More Information ....................................................................................................1-12
Chapter 2
Data Compression Overview
Bay Networks Compression Services ............................................................................2-2
Data Compression Architecture ......................................................................................2-3
LZ-77 Algorithm .......................................................................................................2-3
Hi/fn LZS Algorithm ..................................................................................................2-4
117352-D Rev. 00
v
Compression Control Protocol (CCP) ......................................................................2-4
Bay Networks WAN Compression Protocol (WCP) ..................................................2-4
PPP Hi/fn LZS Compression Protocol ......................................................................2-5
Data Compression Performance ....................................................................................2-5
Hardware Compression ..................................................................................................2-5
Hardware Compression for the BN ..........................................................................2-6
Hardware Compression for the ASN ........................................................................2-6
Hardware Compression Contexts for WCP ..............................................................2-6
Hardware Compression Contexts for Hi/fn LZS .......................................................2-7
How Data Compression Works .......................................................................................2-8
CCP Negotiations ...................................................................................................2-10
WCP Negotiations ..................................................................................................2-10
Data Transmission ..................................................................................................2-11
Compression Features for Specific Protocols ...............................................................2-11
PPP Services .............................................. ....... ...... ....... ...... ...... ....... ...... ....... ...... .2-11
PPP Multiline ........................... ....... ...... ....................................... ...... ....... ...... .2-11
PPP Multilink .................................. ...... ....... ...... ....... ...... ...... ....... ....................2-12
PPP Bandwidth-on-Demand .............................. ....... ...... ...... ...........................2-13
PPP Dial-on-Demand ..................... ...... ....... ...... ....... ...... ...... ....... ....................2-13
PPP Dial Backup .................................. ....... ...... ....... ...... ...... ....... ...... ....... ...... .2 -13
Frame Relay Services ............................................................................................2-14
Frame Relay Hybrid Access ............................................................................2-14
Frame Relay Dial-on-Demand .........................................................................2-14
Frame Relay Dial Backup ................................................................................2-14
X.25 Services .........................................................................................................2-15
X.25 PDN and DDN Services ..........................................................................2-15
Adjusting X.25 Max Window Size ....................................................................2-16
Chapter 3
Customizing Data Compression
Allocating Compression Memory for WCP .....................................................................3-2
Maximizing the Compression Ratio ..........................................................................3-2
Maximizing Throughput ............................................................................................3-3
8 KB History Size ...............................................................................................3-4
32 KB History Size .............................................................................................3-4
History Size with Hardware Compression .........................................................3-4
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117352-D Rev. 00
Modifying the History Size .................................................................................3-6
Preventing Data Loss for PPP and Frame Relay .....................................................3-7
Customizing Hardware Compression .............................................................................3-9
Selecting Software or Hardware Compression ........................................................3-9
Selecting a Fallback Compression Mode ...............................................................3-11
Changing the Compression Control Protocol ...............................................................3-13
Disabling and Reenabling Compression ................... ...... ....... ...... ...... ....... ....................3-14
Disabling and Reenabling WCP on a Line .................................. ....... ...... ....... ...... .3-1 4
Disabling and Reenabling WCP on a Circuit ............ ....................................... ...... .3-14
Disabling Hi/fn LZS ........................ ....... ...... ....... ...... ....................................... ...... .3-15
Deleting Data Compression from a Router ...................................................................3-16
Appendix A
Site Manager Parameters
WCP Line Interface Parameters .................................................................................... A-2
WCP Circuit Interface Parameters ................................................................................. A-8
Hi/fn LZS Interface Parameters ................................................................................... A-11
PPP Interface Parameters for Compression ................................................................ A-14
Appendix B
Show Commands for Hardware Compression
show hwcomp all ..................................................................................................... B-2
show hwcomp state ................................................................................................. B-3
show hwcomp stats ................................................................................................. B-3
show hwcomp errors ............................................................................................... B-5
show hwcomp chip .................................................................................................. B-6
show wcp hwcomp all ............................................................................................. B-7
show wcp hwcomp state ......................................................................................... B-8
show wcp hwcomp stats ......................................................................................... B-9
show wcp hwcomp errors ...................................................................................... B-10
show hifn hwcomp all ............................................................................................ B-11
show hifn hwcomp state ........................................................................................ B-12
show hifn hwcomp stats ........................................................................................ B-13
show hifn hwcomp errors ...................................................................................... B-14
show hardware daughter_card .............................................................................. B-14
117352-D Rev. 00
vii
Appendix C
Monitoring Software Compression
Using the BCC show Commands
show wcp lines ..............................................................................................................C-2
show wcp circuits ........................................................................................................... C-2
show wcp vcs ................................................................................................................C-3
show wcp stats all ..........................................................................................................C-4
show wcp stats error1 .................................................................................................... C-4
show wcp stats error2 .................................................................................................... C-5
show hifn circuits ...........................................................................................................C-6
show hifn stats ............................................................................................................... C-6
show hifn stats error ......................................................................................................C-7
Index
viii
117352-D Rev. 00
Figures
Figure 2-1. CCP and WCP Initialization on a PPP Link .............................................2-9
Figure A-1. WCP Line Interfaces List Window ........................................................... A-2
Figure A-2. WCP Circuit Interfaces List Window ....................................................... A-8
Figure A-3. Hi/fn LZS Interface List Window ............................................................ A-11
117352-D Rev. 00
ix
Tables
Table 1-1. Link Modules Supported by FRE-2-060E Processor with Advanced
Compression Coprocessor Daughterb oard 1 - 3
Table 2-1. Data Compression Algori thm s and Pr oto cols ................................. ...... ...2-3
Table 3-1. Memory Allocation for Software Compression History ............................3-4
Table 3-2. Hardware Compression: 8 KB Contexts ..................................................3-5
Table 3-3. Hardware Compression: 32 KB Contexts ................................................3-5
Table 3-4. Default Compression Type Dependencies ...............................................3-9
117352-D Rev. 00
xi
Preface
Data compression
reducing the amouont of bandwidth needed to tr ansport LAN protocols over a
wide area. Bay Networ ks® routers and routi ng softw are suppor t data compr ession
over frame relay, X.25, and PPP (dial-up or leased lines). This guide describes
what you do to start and customize data compression on a Bay Networks router.
This guide describes how to use Site Manager to configur e da ta compre ss ion on a
router.
If you are responsible for configuring data compression, you need to read this
guide.
If you want to Go to
Start compression. Chapter 1
Learn about data compression services. Chapter 2
Change default settings for compression parameters. Chapter 3
Obtain information about Site Manager parameters (this is the same
information you obtain using Site Manager online Help).
Before You Begin
is a routing feature that elimin at es re dunda ncy in data streams,
Appendix A
117352-D Rev. 00
Before using this guide, you must complete the following procedures. For a new
router:
• Install the router (refer to the installation guide that came with your router).
• Connect the router to the network and create a configuration file (refer to
Quick-Starti ng Router s, Configuring BaySt ac k Remo te Access
ASN Routers to a Network)
.
, or
Connecting
xiii
Configuring Data Compression Se rvices
Make sure that you are running the latest version of Bay Networks BayRS™ and
Site Manager software. For information about upgrading BayRS and Site
Manager, see the upgrading guide for your version of BayRS.
Text Conventions
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
italic text
screen text
Indicates command names and options and text that
you need to enter.
Example: Enter
Example: Use the
show ip {alerts | routes}.
command.
dinfo
Indicates file and directory names, new terms, book
titles, and variables in command syntax descriptions.
Where a variable is two or more 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.
Indicates system output, for example, prompts and
system messages.
Example:
Set Bay Networks Trap Monitor Filters
xiv
117352-D Rev. 00
Preface
separator ( > ) Shows menu paths.
Example: Protocols > I P ide nti fies the IP option on the
Protocols menu.
Acronyms
vertical line (
) Separates choices for command keywords and
|
arguments. Enter only one of the choices. Do not type
the vertical line when entering the command.
Example: If the command syntax is:
show ip {alerts | routes}
show ip alerts
or
show ip routes
, you enter either:
This guide uses the following acronyms:
ACK acknowledgement
CCP Compression Control Protocol
CPC continuous packet com pression
DDN Defense Data Network
DLCI data link connection identifier
DTR data terminal ready
IETF Internet Engineering Task Force
, but not both.
117352-D Rev. 00
ILCCP Individual Link Compression Control Protocol
ILI intelligent link interface
ISDN Integrated Servic es Digital Network
ISDN BRI ISDN Basic Rate interface
ISDN PRI ISDN Primary Rate Interface
LAPB Link Access Procedure-Balanced
LCP Link Control Protocol
MCE1 multichannel E1
MCT1 multichannel T1
MIB management information base
xv
Configuring Data Compression Se rvices
NCP Network Control protocol
PDN Public Data Network
PPC packet-by-packet compression
PPP Point-to-Point Protocol
PVC permanent virtual circuit
RFC Request for Comments
VC virtual circuit
WAN wide area network
WCP WAN Compression Protocol
Bay Networks Technical Publications
You can now print Bay Networks technical manuals and release notes free,
directly from the Internet. Go to
Bay Networks product for which you need documentation. Then locate the
specific category and model or version for your hardware or software product.
Using Adobe Acrobat Re ader, you can open the manuals and r eleas e note s, sea rch
for the sections you need, and print them on most standard printers. You can
download Acrobat Reader free from the Adobe Systems Web site,
www.adobe.com
.
support.baynetw orks.com/l ibra ry/tp ubs/
. Find the
xvi
You can purchase Bay Networks documentation sets, CDs, and selected technical
publications through the Bay Networks Collateral Catalog. The catalog is located
on the World Wide Web at
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.
Make a note of the part numbers and prices of the items that you want to order.
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print the order form.
support.baynetworks.com/catalog.html
and is divided
117352-D Rev. 00
How to Get Help
For product assi stance, support contracts, information about educational services,
and the telephone numbers of our gl obal supp ort offices, go to the following URL :
http://www.baynetworks.com/corpor ate/ conta cts/
In the United States and Canada, you can dial 800-2LANWAN for assistance.
Preface
117352-D Rev. 00
xvii
Chapter 1
Starting Compression
The quickest way to begin using data compression on your network is to enab le it
with the default configuration that Bay Networks software supplies. This chapter
briefly introduces Bay Networks data compression and includes the procedures
for configuring compression with the default configuration values.
This chapter contains the following information:
Topic Page
117352-D Rev. 00
Summary of Bay Networks Data Compression Features
Preparing a Configuration File for Data Compression 1-4
Configuring Software Compression 1-5
Configuring Hardware Compression 1-9
For More Information 1-12
1-2
1-1
Configuring Data Compression Se rvices
Summary of Bay Networks Data Compression Features
You can configure both software- a nd hardware-based compression on a circuit or
line basis. Features specific to software and hardware compression follow.
Software-Based Data Compression
Bay Networks offers two software compression protocols:
• WAN Compression Protocol (WCP) -- for Point-to-Point Protocol (PPP),
frame relay, and X.25 links
• Hi/fn LZS -- for PPP links only
The Hi/fn™ LZS® compression option is not included with your initial
Note:
purchase of BayRS. Bay Networks Hi/fn LZS compression software
incorporates LZS (licensed from Hi/fn) and therefore must be purchased
separately. To run Hi/fn LZS compression on a PPP link between a Bay
Networks router and a no n-Ba y Netwo rks rout er, you must obtain a license for
the Hi/fn LZS compression software, which is delivered on a separate CD.
1-2
These two protocols use different Lev-Zimpel algorithms to implement
compression and provide differen t levels of interoperability between Bay
Networks routers and routers made by other vendors.
If both ends of the connection are Bay Networks routers, use WCP as the
compression protocol. If the connection is a PPP link and only one end of the
connection is a Bay Networks router, use Hi/fn LZS.
Software-based data compression works over WAN links. Specifically, WCP
works with PPP, frame relay, and X.25 links; Hi/fn LZS works only with PPP
links. Both WCP and Hi/fn LZS work with PPP multilink. WCP also works with
PPP multiline.
Software compression includes the following features:
• Support for all Bay Networks platforms: BayStack
Access Stack Node (ASN
Backbone Node (BN
™
), Advanced Remote Node™ (ARN™),
®
), and System 5000
™
™
Access Node (AN®),
• Compression for a Bay Networks Fast Routing Engine (FRE®) module at
4 x 128 KB/s compressed throughput, full duplex; or 512 KB/s aggregate
compressed throughput
117352-D Rev. 00
Starting Compression
• Compression for a BayStack AN platform at 2 x 64 KB/s compressed
throughput, full duplex; or 128 KB/s aggregate compressed throughput
• Compression on all intelligent link interface (ILI) modules that support serial
and ISDN BRI ports
• Compression on MCT1 and MCE1 lines
Hardware-Based Data Compression for the BN Platform
The FRE-2-060E processor module with advanced compression coprocessor
daughterboard, available with BayRS Version 12.20 for the BN router platform,
extends hardware-based data compression services to the link modules listed in
Table 1-1
Table 1-1. Link Modules Supported by FRE-2-060E Processor with Advanced
Compression Coprocessor Daughterboard
Link Modules Bay Networks Part Number
Octal Sync 5008
Oct Sync, HWComp32 AG2104037
Oct Sync, HWComp128 AG2104038
Dual Port Multi Channel T1 5945
Single Port Multi Channel T1 5944
Dual Port Multi Channel E1 77007
Single Port Multi Channel E1 77009
75 ohm Dual Por t MCE1-II AG2111004
75 ohm Single Port MCE1-II AG2111003
120 ohm Dual Por t MCE1-II AG2111002
120 ohm Single Port MCE1-II AG2111001
DB15 Quad MCT1 AG2111007
Ethernet Sync Advanced Filter 5431
.
117352-D Rev. 00
1-3
Configuring Data Compression Se rvices
The type of data compression you configure depends on the upper layer protocol
you want to run over the link, as follows:
• To run frame relay, use WCP.
• To run PPP, use WCP if you are connecting Bay Networks routers.
Use Hi/fn LZS if you are connecting routers of different vendors.
Previous Hardware-Based Data Compression
You can continue to use hardware-based data compression services provided by
releases earlier than BayRS Version 12.20, which were based on:
• Optional daughterboards for PPP and frame relay networks that use the octal
synchronous link module for the BN, using FRE-2 processors only.
If a FRE-2-060E is present in the same slot as an octal synchronous
Note:
hardware compressio n daught erboar d, the FRE-2-060 E will be used inste ad of
the octal synchronous daughterboard.
• Optional net modules for PPP and frame relay networks that use the ASN.
Hardware compressi on can compr ess dat a transmit ted over WANs attached to
the following net modules: dual and quad synchronous, MCE1/ISDN PRI,
MCT1/ISDN, dual synchronous with ISDN BRI, and Quad BRI.
Preparing a Configuration File for Data Compression
To configure data c ompressi on, us e the Bay Netw orks Site Manage r con f i guration
1-4
tool. For information about working with configuration files, see
Managing Ro uters with Site Manager, as appropriate
Before starting data compression, you must create and save a configuration file
with at least one unconfigured WAN interface, such as a synchronous or MCT1
port.
.
Configuring and
117352-D Rev. 00
Configuring Software Compression
Software compres sion w orks o n all rout er platf orms and al l seri al inte rface s. After
you open a configuration file , you can enable compression using Site Manager.
To use Site Manager to configure this interface for compression for PPP, frame
relay, or X.25, first complete the following tasks:
Site Manager Procedure
You do this System responds
Starting Compression
1. In the main Site Manager window, choose
Tools.
2. Choose
3. Choose
Dynamic
4. Select the file. The Configuration Manager window
Configuration Manager
Local File, Remote File
, or
Cache
.
. The Configuration Manager menu opens.
,
The Tools menu opens.
Site Manager prompts you for the
configuration file you want to open.
opens, displaying the router modules.
From the Configuration Manager window, proceed to the following sections to
configure a WAN protocol and compression.
• Enabling Compression for PPP
on page 1-6
• Enabling Compression for Frame Relay on page 1-6
• Enabling Compression for X.25 on page 1-8
117352-D Rev. 00
1-5
Configuring Data Compression Se rvices
Enabling Compression for PPP
To co nfigure software c ompression on a PPP interface , complete the following
tasks:
You do this System responds
Site Manager Procedure
1. In the Configuration Manager window,
click on the link or net module connector
for which you are enabling data
compression.
2. Accept the default circuit name or rename
the circuit, then click on OK.
3. Choose
4. Click on OK. The Select Protocols window opens.
5. Enable data compression for PPP by
choosing one of the fo ll o w in g:
• Choose
Bay Networks router.
• Otherwise, choose
6. Click on OK. You return to the Configuration Manager
as the WAN proto co l. Site Manager enable s the protocol.
PPP
if connecting to anothe r
WCP
Hi/fn LZS
.
Enabling Compression for Frame Relay
To configure software compression on a frame relay interface, complete the
following tasks:
Site Manager Procedure
The Add Circuit window opens.
The WAN Protocols window opens.
Site Manager enables compression on
this interface.
window.
1-6
You do this System responds
1. In the Configuration Manager window,
click on the link or net module connector
for which you are enabling data
compression.
2. Accept the default circuit name or rename
the circuit, then click on OK.
3. Choose
protocol.
Frame Relay
as the WAN
The Add Circuit window opens.
The WAN Protocols window opens.
Site Manager enables the protocol.
117352-D Rev. 00
Starting Compression
Site Manager Procedure
You do this System responds
4. Click on OK. The Select Protocols window opens.
5. Enable data comp ression for frame relay
by choosing
6. Click on OK. You return to the Configuration Manager
WCP
.
(continued)
Site Manager enables compression on
this interface.
window.
117352-D Rev. 00
1-7
Configuring Data Compression Se rvices
Enabling Compression for X.25
To en able WCP on an X.25 interface , you must first add an X.25 service record,
then enable compr ession fo r the X.25 i nterf ace. See
information about X.25 service records.
To en able compress ion on an X.25 interface, com plete the foll owing tasks:
You do this System responds
Site Manager Procedure
Configuring X.25 Ser vices
for
1. In the Configuration Manager window,
click on the link or net module connector
for which you are enabling data
compression.
2. Accept the default circuit name or rename
the circuit, then click on OK.
3. Choose
4. Enter the required information, then click
on OK.*
5. Click on
6. Enter the required information then click
on OK.
7. Choose
8. Choose
9. Choose
10. Set the
to
Enable
Do this for each X.25 interface that you
configure.
11. Click on
* Site M anager requires that you configure certain packet and service parameters.
Configuring X.25 Services
See
† At the time you enable compression, you can also enable other protocols.
and click on OK. The X.25 Pa cket Configuration window
X.25
. The X.25 Service Record window opens.
Add
*
Protocols
Add/Delete
WCP
Enable Compression
.
Done
. The Protocols menu opens.
. The Select Protocols window opens.
. Site Manager enables compression on
parameter
. You return to the Configuration Manager
for information about these parameters.
The Add Circuit window opens.
The WAN Protocols window opens.
opens.
The X.25 Service Configuration window
opens.
You return to the X.25 Service
Configuration window.
this interface and then returns you to the
X.25 Service Conf iguration wi ndow.†
Site Manager enables compression for
this interface.
window.
1-8
117352-D Rev. 00
Starting Compression
Configuring Hardware Compression
To us e hardware comp ression for th e BN router, you must have eith er an octal
synchronous link module w ith a hardware compression daughterboard or the
FRE-2-060E processor module with advanced compression coprocessor
daughterboard. For the ASN router, you must have a hardware compression net
module.
You can use hardware compression with PPP and frame relay.
Configuring Compression for a BN (FRE-2-060E Processor)
To configure hardware compression for a BN that has a FRE-2-060E processor
module with advanced compression coprocessor daughterboard,
following tasks:
Site Manager Procedure
You do this System responds
complete the
117352-D Rev. 00
1. In the Configuration Manager window,
click on the slot in which the FRE-2-060E
processor module with advanced
compression coprocessor is installed and
choose the link m odule for which you want
to enable data compression.
2. Click on OK. You return to the Configuration Manager
3. Choose a port. The Add Circuit window opens.
4. Accept the default circuit name or enter a
new name, then click on OK.
5. Choose one of these WAN protocols:
• PPP
•
Frame Relay
6. Click on OK. The Select Protocols window opens.
Site Manager selects the module.
window. The link module is added to the
slot.
The WAN Protocols window opens.
Site Manager selects the protocol.
(continued)
1-9
Configuring Data Compression Se rvices
Site Manager Procedure
You do this System responds
7. Enable data compression as follows:
• For frame relay, choose
• For PPP, choose
another Bay Networks router.
Otherwise, choose
8. Click on OK. You return to the Configuration Manager
WCP
Hi/fn LZS
.
WCP
if connecting to
.
(continued)
Site Manager enables compression on
this interface.
window.
Configuring Compression for a BN (Octal Synchronous Link Module)
To configure hardware compression for a BN that has an octal synchronous link
module with a hardware compression daughterboard,
tasks:
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
click on an empty slot and choose one of
the following octal synchronous link
modules with a hardware compression
daughterboard:
• AG2104037
• AG2104038*
2. Click on OK. You return to the Configuration Manager
3. Choose a port. The Add Circuit window opens.
4. Accept the default circuit name or enter a
new name, then click on OK.
5. Choose one of these WAN protocols:
• PPP
•
Frame Relay
6. Click on OK. The Select Protocols window opens.
Site Manager selects the module.
window. The link module is added to the
slot.
The WAN Protocols window opens.
Site Manager selects the protocol.
complete the following
(continued)
1-10
117352-D Rev. 00
Starting Compression
Site Manager Procedure
You do this System responds
7. Choose
8. Click on OK. You return to the Configuration Manager
* If you have a hardware compression link module on a BN, you can use hardware compression on
any WAN port on a slot. Hardware compression on the BN does not work across slots.
. Site Manager enables compression on
WCP
Configuring Compression for an ASN
To configure hardware compression for the ASN, complete the following tasks:
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
click on an empty slot and choose one of
the following net modules for hardware
compression:
• AF2104007
•
AF2104012
2. Click on OK. You return to the Configuration Manager
3. Click on the slot that contains the
hardware compression module and
choose a WAN net module.
4. Click on OK. You return to the Configuration Manager
5. Choose a port. The Add Circuit window opens.
6. Accept the default circuit name or enter a
new name, then click on OK.
7. Choose one of these WAN protocols:
• PPP
•
Frame Relay
*
(continued)
this interface.
window.
Site Manager selects the net module.
window. The net module is added to the
slot.
Site Manager selects the WAN net
module.
window. The WAN net module is placed
over the compression module.
The WAN Protocols window opens.
Site Manager selects the protocol.
(continued)
117352-D Rev. 00
1-11
Configuring Data Compression Se rvices
You do this System responds
8. Click on OK. The Select Protocols window opens.
9. Choose
10. Click on OK. You return to the Configuration Manager
* If y ou ha ve a hardw are compression net module on an ASN, you can use hardware compression on
any WAN port on that single router or s lot. Hardware compression on the ASN does not work
across slots; that is, it does not provide compression for any other ASNs in the stack.
. Site Manager enables compression on
WCP
For More Information
For detailed inf ormation abou t Bay Networks data compression, see Chapter 2,
“Data Compression Overview
For information and recommendatio ns about using nondef ault v alues to cus tomize
compression, see Chapter 3
Site Manager Procedure
(continued)
this interface.
window.
.”
, “Customizing Data Compression.”
1-12
117352-D Rev. 00
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