Logging The Adjacency Changes; Enabling An Interface To Send Small Hello Packets; Enabling Is-Is Trap; Configuring Is-Is Gr - 3Com MSR 50 Series Configuration Manual

904 C 57: IS-IS C
HAPTER
Logging the Adjacency
Changes
Enabling an Interface to
Send Small Hello Packets

Enabling IS-IS Trap

Configuring IS-IS GR

ONFIGURATION
Follow these steps to configure this task:
To do...
Enter system view
Enter IS-IS view
Enable to log the adjacency
changes
n
With this feature enabled, the state information of the adjacency is displayed on
the configuration terminal.
Follow these steps to enable an interface to send small hello packets (without the
padding field):
To do...
Enter system view
Enter interface view
Enable the interface to send
small hello packets that have
no padding field
Follow these steps to enable IS-IS trap:
To do...
Enter system view
Enter IS-IS view
Enable IS-IS Trap
An ISIS restart may cause the termination of the adjacencies between a restarting
router and its neighbors, resulting in a transient network disconnection.
IS-IS Graceful Restart can help to solve this problem by notifying its neighbors its
restarting state to allow them to reestablish the adjacency without removing it.
The IS-IS Graceful Restart provides the following features:
When restarting ISIS, a Graceful Restart capable device will resend connection
■
requests to its neighbors instead of terminating their adjacencies.
Graceful Restart minimizes network disruption caused by LSDB synchronization
■
before LSP packets generation.
When a router starts for the first time, it sets the overload bit in LSP packets
■
before LSDB synchronization is complete, which ensures no routing loop is
created.
Use the command...
system-view
isis [ process-id ]
[ vpn-instance
vpn-instance-name ]
log-peer-change
Use the command...
system-view
interface interface-type
interface-number
isis small-hello
Use the command...
system-view
isis [ process-id ]
[ vpn-instance
vpn-instance-name ]
is-snmp-traps enable
Remarks
--
--
Required
Enabled by default
Remarks
--
--
Required
Standard hello packets are
sent by default.
Remarks
--
--
Required
Enabled by default