Viewing flap-dampened routes

Display information about flap-dampened routes to determine unreliable routes.

Procedure

To enter User EXEC mode, log on to the switch.
Display information about flap-dampened routes:

show ip bgp dampened-paths {A.B.C.D} [<prefix/len>] [longer-prefixes] [vrf WORD<1–16>] [vrfids WORD<0–512>]

The following table defines parameters for the show ip bgp dampened-paths command.


Variable	Value
{A.B.C.D}	Specifies the source IP address in the format a.b.c.d.
longer-prefixes	Shows long prefixes. The longer-prefixes indicate the mask length from a specified prefix to 32 (for example, show from prefix a.b.c.d/len to a.b.c./32).
<prefix/len>	Shows paths with this prefix. The prefix is the IP address and exact mask length (must be an integer value from 0–32).
vrf WORD<1–16>	Specifies a VRF instance by name (the string length ranges from 1–16 characters).
vrfids WORD<0–512>	Specifies a range of VRFs by ID number (the ID ranges from 0–512).

Use the data in the following table to understand the show ip bgp dampened-paths command output.

Table 1. show ip bgp dampened-paths field descriptions
Field	Description
NETWORK/MASK	Specifies the network IP address and exact mask length (must be an integer value from 0–32).
PEER REM ADDR	Specifies the IP address of the remote peer.
NEXTHOP ADDRESS	Specifies the IP address of the next hop.
ORG	Specifies the source of a route: IGP — the route is interior to the originating AS that inserts this route into the BGP table (0 = IGP). EGP — the route is learned through an Exterior Gateway Protocol (EGP) before it is inserted into the BGP table (1 = BGP). Incomplete — the origin of the route is unknown or learned by some other means. For example, the router learns these routes through RIP, OSPF, or static routes (2 = Incomplete).
LOC PREF	Specifies the local preference.