Configuring Is-Is; Information About Is-Is - Cisco Nexus 7000 Series Configuration Manual

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .

Configuring IS-IS

This chapter describes how to configure Integrated Intermediate System-to-Intermediate System (IS-IS).
This chapter includes the following sections:
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Information about IS-IS

IS-IS is an Interior Gateway Protocol (IGP) based on Standardization (ISO)/International Engineering
Consortium (IEC) 10589. Cisco NX-OS supports Internet Protocol version 4 (IPv4). IS-IS is a dynamic
link-state routing protocol that can detect changes in the network topology and calculate loop-free routes
to other nodes in the network. Each router maintains a link-state database that describes the state of the
network and sends packets on every configured link to discover neighbors. IS-IS floods the link-state
information across the network to each neighbor. The router also sends advertisements and updates on
the link-state database through all the existing neighbors.
Cisco NX-OS does not support IPv6 for IS-IS.
Note
This section includes the following topics:
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OL-20002-02
Information about IS-IS, page 9-1
Licensing Requirements for IS-IS, page 9-6
Prerequisites for IS-IS, page 9-6
Configuration Guidelines and Limitations, page 9-6
Configuring IS-IS, page 9-6
Verifying IS-IS Configuration, page 9-28
Displaying IS-IS Statistics, page 9-29
IS-IS Example Configuration, page 9-29
Related Topics, page 9-30
Default Settings, page 9-30
Default Settings, page 9-30
Additional References, page 9-30
Feature History for IS-IS, page 9-31
IS-IS Overview, page 9-2
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
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