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BGP ROUTE-DAMPENING!!! posted 06/06/2004
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Hi Group,

I am doing a LAB with Route-dampening in BGP, the problem is the following:


R1 receives the toute 192.168.88.0 255.255.255.0 but It is dampening, so I
applied a route-map DAMPENING in R1.


________________________________________________

R1#sh ip bgp 192.168.88.0 255.255.255.0
BGP routing table entry for 192.168.88.0/24, version 59
Paths: (1 available, no best path)
Flag: 0x208
  Not advertised to any peer
  64600 (history entry)
    172.16.20.5 (metric 65) from 172.16.20.5 (172.16.20.5)
      Origin IGP, metric 0, localpref 100, external
      Dampinfo: penalty 2804, flapped 3 times in 00:03:09

________________________________________________


R1#sh route-map
route-map DAMPENING, permit, sequence 10
  Match clauses:
    ip address (access-lists): 10
  Set clauses:
    dampening 15 750 1500 60
  Policy routing matches: 0 packets, 0 bytes
route-map DAMPENING, permit, sequence 20
  Match clauses:
  Set clauses:
  Policy routing matches: 0 packets, 0 bytes

________________________________________________________________
R1#sh ip bgp flap-statistics
BGP table version is 59, local router ID is 172.16.10.1
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          From            Flaps Duration Reuse    Path
 h 192.168.88.0     172.16.20.5     3     00:10:07          64600
_________________________________________________________________




The penalty is 2804 but the route isn4t suppress of the BGP routing table:

It shows the "h" and not the "d", Also the sh ip bgp 192.168.88.0
255.255.255.0 doesn4t show the reuse in XXXX time...


So I really don4t know What is happening!!!


Rgds,


Sergio