55Enabling poison reverseThe poison reverse function allows an interface to advertise the routes received from neighbors.The metric of these routes is set to 16 (unreachable) so traffic will move through an interface inonly one direction to avoid outing loops between neighbors.To do… Use the command… RemarksStep 1 Enter system view system-view —Step 2 Enter interface view interface interface-typeinterface-number —Step 3 Enable poison reverse rip poison-reverse RequiredDisabled by defaultConfiguring the maximum number of load balanced routesThis task allows you to implement load balancing over multiple equal-cost RIP routes.To do… Use the command… RemarksStep 1 Enter system view system-view ––Step 2 Enter RIP view rip [ process-id ] [ vpn-instance vpn-instance-name ] ––Step 3 Configure the maximumnumber of load balancedroutesmaximum load-balancing number OptionalEight by defaultEnabling zero field check on incoming RIPv1 messagesSome fields in the RIPv1 message must be zero. These fields are called zero fields. You canenable zero field check on received RIPv1 messages. If a zero field contains a non-zero value,then 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 theyhave no zero fields.To do… Use the command… RemarksStep 1 Enter system view system-view ––Step 2 Enter RIP view rip [ process-id ] [ vpn-instance vpn-instance-name ] ––
