Configuring Split Horizon And Poison Reverse; Configuring The Maximum Number Of Ecmp Routes - HP 6125XLG Configuration Manual

Blade switch layer 3 - ip routing
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Step
2.
Enter RIP view.
3.
Configure RIP timers.

Configuring split horizon and poison reverse

The split horizon and poison reverse functions can prevent routing loops.
If both split horizon and poison reverse are configured, only the poison reverse function takes effect.
Enabling split horizon
Split horizon disables RIP from sending routes through the interface where the routes were learned to
prevent routing loops between adjacent routers.
To enable split horizon:
Step
1.
Enter system view.
2.
Enter interface view.
3.
Enable split horizon.
Enabling poison reverse
Poison reverse allows RIP to send routes through the interface where the routes were learned, but the
metric of these routes is always set to 16 (unreachable) to avoid routing loops between neighbors.
To enable poison reverse:
Step
Enter system view.
1.
2.
Enter interface view.
3.
Enable poison reverse.

Configuring the maximum number of ECMP routes

Perform this task to implement load sharing over ECMP routes.
To configure the maximum number of ECMP routes:
Command
rip [ process-id ] [ vpn-instance
vpn-instance-name ]
timers { garbage-collect
garbage-collect-value | suppress
suppress-value | timeout
timeout-value | update
update-value } *
Command
system-view
interface interface-type
interface-number
rip split-horizon
Command
system-view
interface interface-type
interface-number
rip poison-reverse
29
Remarks
N/A
By default:
The garbage-collect timer is 120
seconds.
The suppress timer is 120 seconds.
The timeout timer is 180 seconds.
The update timer is 30 seconds.
Remarks
N/A
N/A
By default, split horizon is enabled.
Remarks
N/A
N/A
By default, poison reverse is
disabled.

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