H3C Technologies H3C S7500E Series Switches - Manual (Page 50)

3-15
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.
Follow these steps to enable poison reverse:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Enable poison reverse rip poison-reverse
Required
Disabled by default
Configuring the Maximum Number of Load Balanced Routes
This task allows you to implement load balancing over multiple equal-cost RIP routes.
Follow these steps to configure the maximum number of load balanced routes:
To do… Use the command… Remarks
Enter system view system-view ––
Enter RIP view
rip [ process-id ] [ vpn-instance
vpn-instance-name ]
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Configure the maximum number of
load balanced routes
maximum load-balancing
number
Optional
The default maximum number is 8.
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 sure that all messages are trusty, you can disable zero field
check to save CPU resources.
This feature does not apply to RIPv2 packets that have no zero fields.
Follow these steps to enable zero field check on incoming RIPv1 messages:
To do… Use the command… Remarks
Enter system view system-view ––
Enter RIP view
rip [ process-id ] [ vpn-instance
vpn-instance-name ]
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