PBR Question

From: cmarchini@covad.net
Date: Thu Aug 04 2005 - 10:05:53 GMT-3


I am trying to use policy Base routing to move traffic.

- From Subnet A to C through R1-R2-R3-R4-R5-R6
- From Subnet B to C through R1-R2-R5-R6
- All path have equal cost
- I need to track the subnet between R3 and R4 for failure, incase of failure I need to redirect traffic using the
Routing protocol.
- The policy base routing will need to happend at R2.

Has anyone used next-hop recursive? Any issues to watch for? I want to make sure that a black hole is not created.

I am thinking of using PBR this way and apply it to the incoming traffic on R2's s0:

-----------------------------
route-map Test permit 10

 match ip address 101 ! Defines the match criteria for subnetA.

 set ip next-hop recursive {IP of R3's s/0} ! If the match criteria is met, the recursive IP
address is set.
------------------------------

                 
                 SubnetA| |SubnetB
                        | |
                      e0| |e1
      ---- ----
     | R7 |------------| R1 |
      ---- ----
             | |
        | |
             | S0|
      ---- ----
     | R3 | -----------| R2 |
      ---- ----
      S1| |
        | |
        | |
      s0| |
      ---- -----
     | R4 |------------| R5 |
      ---- -----
                          |
                          |
                        -----
                       | R6 |
                        -----
                          |
                          | SubnetC

Thanks,

Carlos



This archive was generated by hypermail 2.1.4 : Sun Sep 04 2005 - 17:01:18 GMT-3