145 
Ste
 Command
Remarks 
3.  Configure a system ID to host 
name mapping for a remote 
IS. 
is-name map sys-id map-sys-name
A system ID can correspond to only 
one host name. 
 
Configuring dynamic system ID to host name mapping 
Static system ID to host name mapping requires you to manually configure a mapping for each router in 
the network. When a new router is added to the network or a mapping must be modified, you must 
configure all routers manually.  
When you use dynamic system ID to host name mapping, you only need to configure a host name for 
each router in the network. Each router advertises the host name in a dynamic host name CLV to other 
routers so all routers in the network can have all mappings. 
To help check the origin of LSPs in the LSDB, you can configure a name for the DIS in a broadcast 
network. 
To configure dynamic system ID to host name mapping: 
 
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.  Specify a host name 
for the IS and enable 
dynamic system ID to 
host name mapping. 
is-name sys-name 
By default, no host name is specified for 
the router. 
4.  Return to system view. 
quit  N/A 
5.  Enter interface view. 
interface interface-type 
interface-number 
N/A 
6.  Configure a DIS name. 
isis dis-name symbolic-name 
By default, no DIS name is configured. 
This command takes effect only on a 
router enabled with dynamic system ID to 
host name mapping. 
This command is not available on P2P 
interfaces. 
 
Enabling the logging of neighbor state changes 
With this feature enabled, the router delivers logs about neighbor state changes to its information center. 
The information center processes the logs according to user-defined output rules (whether to output logs 
and where to output). For more information about the information center, see Network Management and 
Monitoring Configuration Guide. 
To enable the logging of neighbor state changes: 
 
Ste
 Command
Remarks 
1.  Enter system view. 
system-view  N/A