R2511-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V5)

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Ste
p
Command Remarks
2. Configure OSPF to give priority
to receiving and processing
hello packets.
ospf packet-process
prioritized-treatment
Not configured by default.
Configuring the LSU transmit rate
Sending large numbers of LSU packets affects router performance and consumes too much network
bandwidth. You can configure the router to send LSU packets at a proper interval and limit the maximum
number of LSU packets sent out of an OSPF interface each time.
To configure the LSU transmit rate:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter OSPF view.
ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *
N/A
3. Configure the LSU
transmit rate.
transmit-pacing interval interval count count
Optional.
By default, an OSPF interface
sends up to three LSU packets
every 20 milliseconds.
Enabling OSPF ISPF
When the topology changes, Incremental Shortest Path First (ISPF) computes only the affected part of the
SPT, instead of the entire SPT.
To enable OSPF ISPF:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter OSPF view.
ospf [ process-id | router-id router-id |
vpn-instance vpn-instance-name ] *
N/A
3. Enable OSPF ISPF.
ispf enable
By default, OSPF ISPF is
disabled.
Configuring OSPF GR
NOTE:
The device can act as only GR helper.
GR ensures the continuity of packet forwarding when a routing protocol restarts or an active/standby
switchover occurs.
• GR restarter—Graceful restarting router. It must have GR capability.
• GR helper—A neighbor of the GR restarter. It helps the GR restarter to complete the GR process.
OSPF GR involves: