Switch 7700 Configuration Guide, v2

IS-IS 113
By default, SPF calculation runs every 5 seconds.
Enabling or Disabling the Interface to Send Packets
To prevent the IS-IS routing information from obtaining by some router in a certain
network, the silent-interface command can be used to prohibit sending IS-IS
packets by the interface connecting with the router.
Perform the following configurations in IS-IS view..
By default, the interface is allowed to receive and send IS-IS packets.
The silent-interface command is only used to restrain the IS-IS packets not to be
sent on the interface, but the interface routes still can be sent from other
interfaces.
Configuring IS-IS to import Routes of Other Protocols
For IS-IS, the routes discovered by other routing protocols are processed as the
routes outside the routing domain. When importing the routes of other protocols,
you can specify the default cost for them.
When IS-IS imports routes, you can also specify to import the routes to Level-1,
Level-2 or Level-1-2.
Perform the following configurations in IS-IS view..
If the level is not specified in the command for importing the route, it defaults to
importing the routes into level-1-2.
protocol specifies the routing protocol sources that can be imported, which can be
direct, static, rip, bgp, and ospf, etc.
By default, IS-IS does not import routing information from any other protocols.
For more about importing routing information, see “IP Routing Policy”.
Table 76 Enable/disable the Interface to Send IS-IS Packets
Operation Command
Disable the interface to send IS-IS packets silent-interface silent-interface-type
silent-interface-number
Enable the interface to send IS-IS packets undo silent-interface silent-interface-type
silent-interface-number
Table 77 Import Routes of Other Protocols
Operation Command
Import routes of other protocols import-route protocol [ cost value ] [ type { external |
internal } ] [ level-1 ] [ level-1-2 ] [ level-2 ] [
route-policy route-policy-name ]
Configure not to import routes from other
protocols
undo import-route protocol [ cost value ] [ type {
external | internal } ] [ level-1 ] [ level-1-2 ] [ level-2 ]
[ route-policy route-policy-name ]