Configuring The Maximum Number Of Ecmp Routes; Enabling Zero Field Check On Incoming Ripv1 Messages - HP MSR2000 series Configuration Manual

Step
3. Enable split horizon.
Enabling poison reverse
The poison reverse function allows an interface to advertise the routes received from it, but the metric of
these routes is set to 16, making them unreachable. This can avoid routing loops between neighbors.
To enable poison reverse:
Step
1. Enter system view.
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:
Step
1. Enter system view.
2. Enter RIP view.
Configure the maximum
3.
number of ECMP routes.

Enabling zero field check on incoming RIPv1 messages

Some fields in the RIPv1 message must be zero. These fields are called "zero fields." You can enable zero
field check on received RIPv1 messages. If such a field contains a non-zero value, the RIPv1 message will
not be processed. If you are certain that all messages are trustworthy, then disable zero field check to
save CPU resources.
This feature does not apply to RIPv2 packets, because they have no zero fields.
To enable zero field check on incoming RIPv1 messages:
Step
1. Enter system view.
2. Enter RIP view.
3. Enable zero field check on
received RIPv1 messages.
Command
rip split-horizon
Command
system-view
interface interface-type
interface-number
rip poison-reverse
Command
system-view
rip [ process-id ] [ vpn-instance
vpn-instance-name ]
maximum load-balancing number
Command
system-view
rip [ process-id ] [ vpn-instance
vpn-instance-name ]
checkzero
32
Remarks
Optional.
Enabled by default.
Remarks
N/A
N/A
Disabled by default.
Remarks
N/A
N/A
Optional.
8 by default.
Remarks
N/A
N/A
Optional.
Enabled by default.