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Configuring IS-IS

To configure IS-IS, you include the following statements in the configuration:

protocols {isis {clns-routing;disable;ignore-attached-bit;graceful-restart {disable;helper-disable;restart-duration seconds;}label-switched-path name level level metric metric;level level-number {authentication-key key;authentication-type authentication;external-preference preference;no-csnp-authentication;no-hello-authentication;no-psnp-authentication;preference preference;prefix-export-limit number;wide-metrics-only;}loose-authentication-check;lsp-lifetime seconds;max-areas seconds;no-adjacency-holddown;no-authentication-check;no-ipv4-routing;no-ipv6-routing;overload {advertise-high-metrics;timeout seconds;}reference-bandwidth reference-bandwidth;rib-group {inet group-name;inet6 group-name;}spf-options {delay milliseconds;holddown milliseconds;rapid-runs number;}topologies {ipv4-multicast;ipv6-multicast;ipv6-unicast;}traffic-engineering {disable;ignore-lsp-metrics;family inet;shortcuts {multicast-rpf-routes;}}family inet6;shortcuts;}}traceoptions {file filename <files number> <size size> <world-readable | no-world-readable>;flag flag <flag-modifier> <disable>;}interface (all | interface-name) {disable;bfd-liveness-detection {authentication {algorithm algorithm-name;key-chain key-chain-name;loose-check;}detection-time {threshold milliseconds;}minimum-interval milliseconds;minimum-receive-interval milliseconds;multiplier number;no-adaptation;transmit-interval {threshold milliseconds;minimum-interval milliseconds;}version (1 | automatic);}checksum;csnp-interval (seconds | disable);hello-padding (adaptive | loose | strict);ldp-synchronization {disable;hold-time seconds;}link-protection;lsp-interval milliseconds;mesh-group (value | blocked);no-adjacency-holddown;no-eligible-backup;no-ipv4-multicast;no-ipv6-multicast;no-ipv6-unicast;no-unicast-topology;node-link-protection;passive;point-to-point;level level-number {disable;hello-authentication-key key;hello-authentication-type authentication;hello-interval seconds;hold-time seconds;ipv4-multicast-metric number;ipv6-multicast-metric number;ipv6-unicast-metric number;metric metric;passive;priority number;te-metric metric;}}}}

For a list of hierarchy levels at which you can include these statements, see the statement summary sections for these statements.

By default, IS-IS is enabled for Level 1 and Level 2 routers on all interfaces on which an International Organization for Standardization (ISO) address is configured.


Published: 2010-04-14

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