Cisco Content Services Switch
Routing and Bridging Configuration
Guide
Software Version 7.30
January 2004
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Text Part Number: OL-4580-01
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Cisco Content Services Switch Routing and Bridging Configuration Guide
Table 8-2Field Descriptions for the show dhcp-relay-agent global Command8-4
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Preface
This guide provides instructions to configure interfaces and circuits,
spanning-tree bridging, Open Shortest Path First (OSPF), Address Resolution
Protocol (ARP), Routing Information Protocol (RIP), Internet Protocol (IP)
routing, and Dynamic Host Configuration Protocol (DHCP). Information in this
chapter applies to all 11500 Series Content Services Switch (CSS) models, except
where noted.
This preface contains the following major sections:
• Audience
• How to Use This Guide
• Related Documentation
• Symbols and Conventions
• Obtaining Documentation
• Documentation Feedback
• Obtaining Technical Assistance
• Obtaining Additional Publications and Information
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xv
Audience
Audience
This guide is intended for the following trained and qualified service personnel
who are responsible for configuring the CSS:
• Web m a ste r
• System administrator
• System operator
How to Use This Guide
This guide is organized as follows:
ChapterDescription
Chapter 1, Configuring
Interfaces and Circuits
Chapter 2, Configuring
Spanning-Tree
Bridging for the CSS
Chapter 3, Configuring
Open Shortest Path
First (OSPF)
Chapter 4, Configuring
the Address Resolution
Protocol
Chapter 5, Configuring
Routing Information
Protocol
Chapter 6, Configuring
the Internet Protocol
Preface
Configure the CSS interface ports and circuits for
operation.
Configure spanning-tree bridging.
Configure OSPF routing protocol.
Configure Address Resolution Protocol (ARP).
Configure Routing Information Protocol (RIP).
Configure Internet Protocol (IP) routing.
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ChapterDescription
Chapter 7, Configuring
the Cisco Discovery
Protocol
Chapter 8, Configuring
the DHCP Relay Agent
Related Documentation
In addition to this document, the CSS documentation set includes the following:
Document TitleDescription
Release Note for the
Cisco 11500 Series
Content Services Switch
Cisco 11500 Series
Content Services Switch
Hardware Installation
Guide
This release note provides information on
operating considerations, caveats, and command
line interface (CLI) commands for the Cisco 11500
series CSS.
This guide provides information for installing,
cabling, and powering the Cisco 11500 series CSS.
In addition, this guide provides information about
CSS specifications, cable pinouts, and hardware
troubleshooting.
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Cisco Content Services Switch Routing and Bridging Configuration Guide
This guide describes how to perform administrative
tasks on the CSS, including booting and logging in
to the CSS, upgrading your CSS software, and
configuring the following:
Cisco Content Services Switch Routing and Bridging Configuration Guide
• Secure Shell Daemon protocol
• Radius
• TAC ACS +
• Firewall load balancing
• Secure Socket Layer (SSL) termination with
the SSL Acceleration Module
This reference provides an alphabetical list of all
CLI commands including syntax, options, and
related commands.
This guide describes how to use the Device
Management user interface, an HTML-based
web-based application that you use to configure
and manage your CSS.
xix
Symbols and Conventions
Symbols and Conventions
This guide uses the following symbols and conventions to identify different types
of information.
CautionA caution means that a specific action you take could cause a loss of data or
adversely impact use of the equipment.
Preface
Warning
NoteA note provides important related information, reminders, and recommendations.
A warning describes an action that could cause you physical harm or damage
the equipment.
Bold text indicates a command in a paragraph.
Courier text indicates text that appears on a command line, including the CLI
prompt.
Courier bold text indicates commands and text you enter in a command line.
Italic text indicates the first occurrence of a new term, book title, emphasized text,
and variables for which you supply values.
1. A numbered list indicates that the order of the list items is important.
a. An alphabetical list indicates that the order of the secondary list items is
important.
• A bulleted list indicates that the order of the list topics is unimportant.
–
An indented list indicates that the order of the list subtopics is
unimportant.
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Preface
Obtaining Documentation
Cisco documentation and additional literature are available on Cisco.com. Cisco
also provides several ways to obtain technical assistance and other technical
resources. These sections explain how to obtain technical information from Cisco
Systems.
Cisco.com
You can access the most current Cisco documentation on the World Wide Web at
this URL:
http://www.cisco.com/univercd/home/home.htm
You can access the Cisco website at this URL:
http://www.cisco.com
International Cisco websites can be accessed from this URL:
• Nonregistered Cisco.com users can order documentation through a local
account representative by calling Cisco Systems Corporate Headquarters
(California, USA) at 408 526-7208 or, elsewhere in North America, by
calling 800 553-NETS (6387).
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Documentation Feedback
Documentation Feedback
You can submit e-mail comments about technical documentation to
bug-doc@cisco.com.
You can submit comments by using the response card (if present) behind the front
cover of your document or by writing to the following address:
Cisco Systems
Attn: Customer Document Ordering
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We appreciate your comments.
Obtaining Technical Assistance
For all customers, partners, resellers, and distributors who hold valid Cisco
service contracts, the CiscoTechnical Assistance Center (TAC) provides
24-hour-a-day, award-winning technical support services, online and over the
phone. Cisco.com features the Cisco Technical Support Website as an online
starting point for technical assistance. If you do not hold a valid Cisco service
contract, please contact your reseller.
Preface
Cisco Technical Support Website
The Cisco Technical Support Website provides online documents and tools for
troubleshooting and resolving technical issues with Cisco products and
technologies. The Cisco Technical Support Website is available 24 hours a day,
365 days a year. The Cisco Technical Support Website is located at this URL:
http://www.cisco.com/techsuport
Accessing all the tools on the Cisco Technical Support Website requires a
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have a login ID or password, register at this URL:
http://tools.cisco.com/RPF/register/register.do
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Preface
Opening a TAC Case
Using the online TAC Case Open Tool is the fastest way to open P3 and P4 cases.
(P3 and P4 cases are those in which your network is minimally impaired or for
which you require product information.) After you describe your situation, the
TAC Case Open Tool automatically recommends resources for an immediate
solution. If your issue is not resolved using the recommended resources, your case
will be assigned to a Cisco TAC engineer. The online TAC Case Open Tool is
located at this URL:
http://www.cisco.com/techsupport/caseopen
For P1 or P2 cases (P1 and P2 cases are those in which your production network
is down or severely degraded) or if you do not have Internet access, contact Cisco
TAC by telephone. Cisco TAC engineers are assigned immediately to P1 and P2
cases to help keep your business operations running smoothly.
To open a case by telephone, use one of the following numbers:
To ensure that all cases are reported in a standard format, Cisco has established
case priority definitions.
Priority 1 (P1)—Your network is “down” or there is a critical impact to your
business operations. You and Cisco will commit all necessary resources around
the clock to resolve the situation.
Priority 2 (P2)—Operation of an existing network is severely degraded, or
significant aspects of your business operation are negatively affected by
inadequate performance of Cisco products. You and Cisco will commit full-time
resources during normal business hours to resolve the situation.
Priority 3 (P3)—Operational performance of your network is impaired, but most
business operations remain functional. You and Cisco will commit resources
during normal business hours to restore service to satisfactory levels.
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Preface
Obtaining Additional Publications and Information
Priority 4 (P4)—You require information or assistance with Cisco product
capabilities, installation, or configuration. There is little or no effect on your
business operations.
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is
available from various online and printed sources.
• Cisco Marketplace provides a variety of Cisco books, reference guides, and
logo merchandise. Go to this URL to visit the company store:
http://www.cisco.com/go/marketplace/
• The Cisco Product Catalog describes the networking products offered by
Cisco Systems, as well as ordering and customer support services. Access the
Cisco Product Catalog at this URL:
http://cisco.com/univercd/cc/td/doc/pcat/
• Cisco Press publishes a wide range of general networking, training and
certification titles. Both new and experienced users will benefit from these
publications. For current Cisco Press titles and other information, go to Cisco
Press online at this URL:
http://www.ciscopress.com
xxiv
• Packet magazine is the Cisco quarterly publication that provides the latest
networking trends, technology breakthroughs, and Cisco products and
solutions to help industry professionals get the most from their networking
investment. Included are networking deployment and troubleshooting tips,
configuration examples, customer case studies, tutorials and training,
certification information, and links to numerous in-depth online resources.
You can access Packet magazine at this URL:
http://www.cisco.com/packet
• iQ Magazine is the Cisco bimonthly publication that delivers the latest
information about Internet business strategies for executives. You can access
iQ Magazine at this URL:
http://www.cisco.com/go/iqmagazine
Cisco Content Services Switch Routing and Bridging Configuration Guide
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Obtaining Additional Publications and Information
• Internet Protocol Journal is a quarterly journal published by Cisco Systems
for engineering professionals involved in designing, developing, and
operating public and private internets and intranets. You can access the
Internet Protocol Journal at this URL:
http://www.cisco.com/ipj
• Training—Cisco offers world-class networking training. Current offerings in
network training are listed at this URL:
http://www.cisco.com/en/US/learning/index.html
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Obtaining Additional Publications and Information
Preface
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CHAP T ER
1
Configuring Interfaces and Circuits
This chapter describes how to configure the CSS interfaces and circuits and how
to bridge interfaces to Virtual LANs (VLANs). Information in this chapter applies
to all CSS models, except where noted.
This chapter contains the following major sections:
• Interface and Circuit Overview
• Configuring Interfaces
• Configuring Circuits
• Configuring RIP for an IP Interface
• Configuring the Switched Port Analyzer Feature
Interface and Circuit Overview
The CSS provides Ethernet interfaces (ports) that enable you to connect servers,
PCs, routers, and other devices to the CSS.
Using the bridge command, you assign the Ethernet interfaces to a specific
VLAN. Each VLAN circuit requires an IP address. Assigning an IP address to
each VLAN circuit allows the CSS to route Ethernet interfaces from VLAN to
VLAN.
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1-1
Interface and Circuit Overview
Using the trunk command, you can assign multiple VLANs to a CSS Ethernet
interface port (Fast Ethernet port or Gigabit Ethernet port). A trunk is a
point-to-point link carrying the traffic of several VLANs. The advantage of a trunk is
to save ports by creating a link between two CSSs implementing VLANs. A trunk
bundles virtual links over one physical link. The unique physical link between the
two CSSs is able to carry traffic for the specified VLANs.
NoteThe trunk and vlan commands (and the associated software functionality)
comply with the IEEE 802.1Q Standard for Local and Metropolitan Area Networks:
Virtual Bridged Local Area Networks.
The CSS forwards VLAN circuit traffic to the IP interface. The IP interface passes
the traffic to the IP forwarding function where the CSS compares the destination
of each packet to information contained in the routing table. Once the CSS
resolves the packet addresses, it forwards the packet to the appropriate VLAN and
destination port.
With trunking enabled, the CSS automatically inserts a tag in every frame
transmitted over the trunk link to identify the originating VLAN. When the
VLAN-aware CSS receives the frame, it reviews the VLAN-tagged packet to
identify the transmitting VLAN. If the VLAN is recognized, the frame is routed to
the proper port and VLAN destination. If the frame is from a VLAN that is not
assigned to the trunk port, the packet is ignored. By default, the CSS discards
untagged packets.
For an 802.1Q trunk, you can use the default-vlan command to:
Chapter 1 Configuring Interfaces and Circuits
1-2
• Accept packets that arrive untagged on the interface
• Transmit untagged packets
By using this method, the CSS can determine which VLAN transmitted an
untagged frame. This capability allows VLAN-aware CSSs and VLAN-unaware
CSSs to transmit and receive information on the same cable.
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Chapter 1 Configuring Interfaces and Circuits
Figure 1-1 illustrates the interfaces, circuits, and VLANs in a CSS, and Figure 1-2
illustrates trunking between VLANs.
Figure 1-1CSS Interfaces and Circuits
Interface and Circuit Overview
IP Forwarding
(Layer 3)
Circuit
IP Interface
for VLAN 1
10.3.6.58
Circuit
IP Interface
for VLAN 2
10.3.6.59
Circuit
IP Interface
for VLAN 3
10.3.6.60
VLAN1
Bridging
Domain
vlan 1
VLAN2
Bridging
Domain
vlan 2
VLAN3
Bridging
Domain
vlan 3
Interface Port e1
Interface Port e2
Interface Port e3
Interface Port e4
Interface Port e5
Interface Port e7
Interface Port e9
Interface Port e11
Interface Port e6
Interface Port e8
Interface Port e10
Interface Port e12
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Figure 1-2Interface Trunking Between VLANs
VLAN1VLAN1
VLAN2VLAN2
CSS 1CSS 2
Cisco Content Services Switch Routing and Bridging Configuration Guide
Trunk
VLAN1 and VLAN2
51593
1-3
Chapter 1 Configuring Interfaces and Circuits
Interface and Circuit Overview
Interface and Circuit Configuration Quick Start
Table 1-1 provides a quick overview of the steps required to configure interfaces
and circuits. Each step includes the CLI command required to complete the task.
For a complete description of each feature and all the options associated with the
CLI command, see the sections following Tab le 1-1 .
Table 1-1Interface and Circuit Configuration Quick Start
Task and Command Example
1. Log in to the CSS.
2. Enter configuration mode by typing config.
# config
(config)#
3. Enter the interface mode for the interface you wish to configure.
This set of interface commands applies to the CSS 11501.
(config)# interface e1
(config-if[e1])#
1-4
This set of interface commands applies to the CSS 11503 or CSS 11506.
(config)# interface 2/1
(config-if[2/1])#
4. Configure the interface duplex, speed, and flow control (default is
auto-negotiate).
(config-if[2/1])# phy 100Mbits-FD
5. Bridge the interface to a VLAN. All interfaces are assigned to VLAN1 by
default.
(config-if[2/1])# bridge vlan 2
6. (Optional) Enable trunking for a CSS Gigabit Ethernet or Fast Ethernet port.