Configuring Dynamic System Id To Host Name Mapping; Configuring Is-Is Gr - 3Com S7906E Configuration Manual

To do...
Configure a system ID to host
name mapping for a remote IS

Configuring Dynamic System ID to Host Name Mapping

You need to configure a static system ID to host name mapping for any other router in a network. When
a new router is added into the network or a mapping needs to be modified, you need to perform
configuration on all routers.
In this case, you can configure dynamic system ID to host name mapping. To do so, you need to
configure a host name for each router in the network. Each router advertises the host name in dynamic
host name CLVs to other routers. At last, all routers in the network have all the mappings to generate a
mapping table.
In addition, you can configure a name for the DIS in a broadcast network to help check the origin of
LSPs in the LSDB.
Follow these steps to configure dynamic system ID to host name mapping:
To do...
Enter system view
Enter IS-IS view
Specify a host name for
the router
Return to system view
Enter interface view
Configure a DIS name

Configuring IS-IS GR

Restarting ISIS on a router will cause network disconnections and route re-convergence.
With the Graceful Restart (GR) feature, the restarting router, known as the GR restarter, can notify the
event to its GR capable neighbors, which, known as the GR helpers, will keep their adjacencies with the
router within a configurable GR interval. After the restart, the router contacts its neighbors to retrieve its
routing table.
During the whole process, the network keeps stable.
Use the command...
is-name map sys-id
map-sys-name
Use the command...
system-view
isis [ process-id ]
[ vpn-instance
vpn-instance-name ]
is-name sys-name
quit
interface interface-type
interface-number
isis dis-name symbolic-name
1-33
Remarks
Required
A system ID can only
correspond to a host name.
Remarks
––
––
Required
No specified by default.
––
––
Optional
Not configured by default.
This command takes effect only on a
router with dynamic system ID to host
name mapping configured.
This command is not supported on
P2P interfaces.