Configuring ripng timers, Configuring split horizon and poison reverse, Configuring split horizon – H3C Technologies H3C SecPath F1000-E User Manual
Page 767: Configuring the poison reverse function
742
Before tuning and optimizing the RIPng network, complete the following tasks:
•
Configure a network layer address for each interface.
•
Configure the basic RIPng functions.
Configuring RIPng timers
You can adjust RIPng timers to optimize the performance of the RIPng network. When adjusting RIPng
timers, consider the network performance and perform unified configurations on routers running RIPng to
avoid unnecessary network traffic increase or route oscillation.
To configure RIPng timers:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter RIPng view.
ripng [ process-id ]
N/A
3.
Configure RIPng
timers.
timers { garbage-collect
garbage-collect-value | suppress
suppress-value | timeout
timeout-value | update
update-value } *
Optional.
By default, the RIPng timers are as follows:
•
30 seconds for the update timer.
•
180 seconds for the timeout timer.
•
120 seconds for the suppress timer.
•
120 seconds for the garbage-collect timer.
Configuring split horizon and poison reverse
If both split horizon and poison reverse are configured, only the poison reverse function takes effect.
Configuring split horizon
The split horizon function disables a route learned from an interface from being advertised through the
same interface to prevent routing loops between neighbors.
H3C recommends enabling split horizon to prevent routing loops.
To configure split horizon:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface interface-type
interface-number
N/A
3.
Enable the split horizon
function.
ripng split-horizon
Optional.
Enabled by default.
Configuring the poison reverse function
The poison reverse function enables a route learned from an interface to be advertised through the
interface. However, the metric of the route is set to 16, which causes the route to be unreachable.
To configure poison reverse:
- H3C SecPath F5000-A5 Firewall H3C SecPath F1000-A-EI H3C SecPath F1000-E-SI H3C SecPath F1000-S-AI H3C SecPath F5000-S Firewall H3C SecPath F5000-C Firewall H3C SecPath F100-C-SI H3C SecPath F1000-C-SI H3C SecPath F100-A-SI H3C SecBlade FW Cards H3C SecBlade FW Enhanced Cards H3C SecPath U200-A U200-M U200-S H3C SecPath U200-CA U200-CM U200-CS H3C SecBlade LB Cards H3C SecPath L1000-A Load Balancer