Configuring Routing Domain Authentication; Configuring Is-Is Gr - HPE FlexNetwork HSR6800 Configuration Manual

Configuring routing domain authentication

Routing domain authentication prevents untrusted routing information from entering into a routing
domain. A router with the authentication configured encapsulates the password in the specified
mode into Level-2 packets (LSP, CSNP, and PSNP) and check the password in received Level-2
packets.
All the routers in the backbone must have the same authentication mode and password.
To configure routing domain authentication:
Step
Enter system view.
1.
Enter IS-IS view.
2.
Specify the routing domain
3.
authentication mode and
password.

Configuring IS-IS GR

Restarting IS-IS on a router will cause network disconnections and route reconvergence.
With the GR feature, the restarting router (known as the "GR restarter") can notify the event to its GR
capable neighbors. GR capable neighbors (known as "GR helpers") 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 this process, the network keeps stable.
The IS-IS GR and IS-IS NSR features are mutually exclusive.
To configure GR on the GR restarter and GR helper:
Step
Enter system view.
1.
Enable IS-IS and
2.
enter IS-IS view.
Enable the GR
3.
capability for IS-IS.
Set the Graceful
4.
Restart interval.
Suppress the SA bit
5.
during restart.
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
domain-authentication-mode
{ md5 | simple } [ cipher ]
password [ ip | osi ]
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
graceful-restart
graceful-restart interval timer
graceful-restart suppress-sa
149
Remarks
N/A
N/A
By default, no routing domain
authentication is configured by
default.
Remarks
N/A
Disabled by default.
Disabled by default.
300 seconds by default.
The Graceful Restart interval is set as the
holding time in the hello PDUs. Within the
interval, the neighbors will keep their
adjacency with the GR restarter.
Optional.
By default, the SA bit is not suppressed.
By enabling the GR restarter to suppress
the Suppress-Advertisement (SA) bit in the
hello PDUs, the neighbors will still
advertise their adjacency with the GR
restarter.