146 
Ste
 Command
Remarks 
2.  Enter IS-IS view. 
isis [ process-id ] [ vpn-instance 
vpn-instance-name ]
 
N/A
 
3.  Enable the logging of 
neighbor state changes. 
log-peer-change 
By default, the logging of 
neighbor state changes is 
enabled. 
 
Enabling IS-IS ISPF 
When the network topology changes, Incremental Shortest Path First (ISPF) computes only the affected 
part of the SPT, instead of the entire SPT.  
To enable IS-IS ISPF:  
 
Ste
 Command
Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter IS-IS view. 
isis [ process-id ] [ vpn-instance vpn-instance-name ] N/A
 
3.  Enable IS-IS ISPF. 
ispf enable  By default, IS-IS is disabled.
 
Configuring IS-IS network management 
This task involves the following configurations: 
•  Bind an IS-IS process to MIB so that you can use network management software to manage the 
specified IS-IS process. 
•  Enable IS-IS notifications to report important events. 
Notifications are delivered to the SNMP module, which outputs the notifications according to the 
configured output rules. For more information about SNMP notifications, see Network Management and 
Monitoring Configuration Guide. 
To configure IS-IS network management: 
 
Ste
 Command
Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Bind MIB to an IS-IS 
process. 
isis mib-binding process-id
 
By default, MIB is bound to the IS-IS 
process with the smallest process 
ID. 
3.  Enable IS-IS 
notification sending. 
snmp-agent trap enable isis 
[ adjacency-state-change | area-mismatch 
| authentication | authentication-type | 
buffsize-mismatch | id-length-mismatch | 
lsdboverload-state-change | lsp-corrupt | 
lsp-parse-error | lsp-size-exceeded | 
manual-address-drop | max-seq-exceeded 
| maxarea-mismatch | own-lsp-purge | 
protocol-support  | rejected-adjacency | 
skip-sequence-number | version-skew ] * 
By default, IS-IS notification 
sending is enabled.