To configure IS-IS, you include statements at the [edit protocols isis] hierarchy level of the configuration. You can include the following statements in the configuration:
protocols {
isis {
disable;
authentication-key key;
authentication-type authentication;
export [ policy-names ];
label-switched-path name level level metric metric;
level level-number {
authentication-key key;
authentication-type authentication;
external-preference preference;
preference preference;
wide-metrics-only;
}
lsp-lifetime seconds;
no-authentication-check;
overload <timeout seconds>;
traffic-engineering {
disable;
shortcuts;
}
reference-bandwidth reference-bandwidth
traceoptions {
file name <replace> <size size> <files number> <no-stamp>
<(world-readable | no-world-readable)>;
flag flag <flag-modifier> <disable>;
}
interface interface-name {
disable;
csnp-interval (seconds | disable);
hello-authentication-key key;
hello-authentication-type authentication;
lsp-interval milliseconds;
mesh-group (value | blocked);
passive;
level level-number {
disable;
hello-authentication-key key;
hello-authentication-type authentication;
hello-interval seconds;
hold-time seconds;
metric metric;
passive;
priority number;
te-metric metric;
}
}
}
}
By default, IS-IS is enabled for Level 1 and Level 2 routers on all interfaces on which an OSI address is configured.
This chapter discusses the following topics that provide information about configuring IS-IS: