79
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. Configure the default
parameters for
redistributed routes
(cost, upper limit, tag,
and type).
default
{
cost
cost |
tag
tag |
type
type } *
By default, the cost is 1, the tag
is 1, and the type is Type-2.
Advertising a host route
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. Enter area view.
area
area-id
N/A
4. Advertise a host route.
host-advertise
ip-address cost
By default, no host route is
advertised.
Tuning and optimizing OSPF networks
You can use one of the following methods to optimize an OSPF network:
• Change OSPF packet timers to adjust the convergence speed and network load. On low-speed
links, consider the delay time for sending LSAs.
• Change the SPF calculation interval to reduce resource consumption caused by frequent
network changes.
• Configure OSPF authentication to improve security.
Configuration prerequisites
Before you configure OSPF network optimization, complete the following tasks:
• Configure IP addresses for interfaces to ensure IP connectivity between neighboring nodes.
• Enable OSPF.
Configuring OSPF timers
An OSPF interface includes the following timers:
• Hello timer—Interval for sending hello packets. It must be identical on OSPF neighbors.
• Poll timer—Interval for sending hello packets to a neighbor that is down on the NBMA network.
• Dead timer—Interval within which if the interface does not receive any hello packet from the
neighbor, it declares the neighbor is down.
• LSA retransmission timer—Interval within which if the interface does not receive any
acknowledgment packets after sending an LSA to the neighbor, it retransmits the LSA.
To Next Page
Loading...
Need help?
General