Troubleshooting Routing Protocols - 3Com Switch 4500 26-Port Configuration Manual

Troubleshooting Routing
Protocols
Routing information filtering cannot be implemented in normal operation of the
routing protocol
Check for the following faults:
The if-match mode of at least one node of the Route Policy should be the
■
mode. When a Route Policy is used for the routing information
permit
filtering, if a piece of routing information does not pass the filtering of any
node, then it means that the route information does not pass the filtering of
the Route Policy. When all the nodes of the Route Policy are in the
then all the routing information cannot pass the filtering of the Route Policy.
The if-match mode of at least one list item of the ip-prefix should be the
■
mode. The list items of the
permit
filter the routing information not satisfying the requirement, but if all the items
are in the deny mode, no routes will not pass the
define an item of permit 0.0.0.0/0
in the mode so as to let all the other routes pass the filtering (If
deny
32 is not specified, only the default route will be matched).
less-equal
IP Routing Policy
mode can be firstly defined to rapidly
deny
ip-prefix
32 after the multiple list items
less-equal
127
mode,
deny
filtering. You can