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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:
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.
By default, IS-IS is disabled.
Enabling prefix suppression
Perform this task to disable an interface from advertising its prefix in LSPs. This enhances network
security by preventing IP routing to the interval nodes and speeds up network convergence.
To enable prefix suppression:
1. Enter system view.
N/A
2. Enter interface view.
interface
interface-type interface-number N/A
3. Enable prefix
suppression on the
interface.
isis prefix-suppression
By default, prefix
suppression is disabled on
the interface.
This command is also
applicable to the secondary
IP address of the interface.
Configuring IS-IS network management
This task includes 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.
To report critical IS-IS events to an NMS, enable SNMP notifications for IS-IS. For SNMP
notifications to be sent correctly, you must also configure SNMP on the device. For more information
about SNMP configuration, see the network management and monitoring configuration guide for the
device.
To configure IS-IS network management:
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.
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