130 
Tasks at a 
lance
(Optional.) Tuning and optimizing IS-IS networks: 
•  Specifying the interval for sending IS-IS hello packets 
•  Specifying the IS-IS hello multiplier 
•  Specifying the interval for sending IS-IS CSNP packets 
•  Configuring a DIS priority for an interface 
•  Disabling source address check for hello packets on a PPP interface 
•  Disabling an interface from sending/receiving IS-IS packets 
•  Enabling an interface to send small hello packets 
•  Configuring LSP parameters 
•  Controlling SPF calculation interval 
•  Configuring convergence priorities for specific routes 
•  Setting the LSDB overload bit 
•  Configuring system ID to host name mappings 
•  Enabling the logging of neighbor state changes 
•  Enabling IS-IS ISPF 
•  Configuring IS-IS network management 
(Optional.) Enhancing IS-IS network security: 
•  Configuring neighbor relationship authentication 
•  Configuring area authentication 
•  Configuring routing domain authentication 
(Optional.) Configuring IS-IS GR 
(Optional.) Configuring BFD for IS-IS 
(Optional.) Configuring IS-IS FRR 
 
Configuring basic IS-IS 
Configuration prerequisites 
Before the configuration, complete the following tasks: 
•  Configure the link layer protocol. 
•  Configure IP addresses for interfaces to ensure IP connectivity between neighboring nodes. 
Enabling IS-IS 
Ste
 Command
Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Create an IS-IS process and enter 
its view. 
isis [ process-id ] [ vpn-instance 
vpn-instance-name ]
 
By default, the IS-IS process is 
disabled. 
3.  Assign a NET. 
network-entity net  By default, NET is not assigned. 
4.  Return to system view. 
quit  N/A