HPE FlexNetwork 5510 HI Series User Manual

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To enable OSPF ISPF:
Step
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
enabled.
Configuring prefix suppression
By default, an OSPF interface advertises all of its prefixes in LSAs. To speed up OSPF convergence,
you can suppress interfaces from advertising all of their prefixes. This feature helps improve network
security by preventing IP routing to the suppressed networks.
When prefix suppression is enabled:
• On P2P and P2MP networks, OSPF does not advertise Type-3 links in Type-1 LSAs. Other
routing information can still be advertised to ensure traffic forwarding.
• On broadcast and NBMA networks, the DR generates Type-2 LSAs with a mask length of 32 to
suppress network routes. Other routing information can still be advertised to ensure traffic
forwarding. If no neighbors exist, the DR does not advertise the primary IP addresses of
interfaces in Type-1 LSAs.
IMPORTANT:
As a best practice, configure prefix suppre
ssion on all OSPF routers if you want to use prefix
suppression.
Configuring prefix suppression for an OSPF process
Enabling prefix suppression for an OSPF process does not suppress the prefixes of secondary IP
addresses, loopback interfaces, and passive interfaces. To suppress the prefixes of loopback
interfaces and passive interfaces, enable prefix suppression on the interfaces.
To configure prefix suppression for an OSPF process:
Step
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 prefix
suppression for the
OSPF process.
prefix-suppression
By default, prefix suppression
is disabled for an OSPF
process.
Configuring prefix suppression for an interface
Interface prefix suppression does not suppress prefixes of secondary IP addresses.
To configure interface prefix suppression:
Step
Command
Remarks
1. Enter system view.
system-view
N/A
2. Enter interface
view.
interface
interface-type interface-number N/A

HPE FlexNetwork 5510 HI Series Specifications

General

Brand	HPE
Model	FlexNetwork 5510 HI Series
Category	Switch
Language	English