Changing Bgp Timers - Dell S4048T Configuration Manual

<1-20000> Value to start reusing a route (default = 750)
Dell(conf-router_bgp)#bgp dampening 2 2000 ?
<1-20000> Value to start suppressing a route (default = 2000)
Dell(conf-router_bgp)#bgp dampening 2 2000 3000 ?
<1-255> Maximum duration to suppress a stable route (default = 60)
Dell(conf-router_bgp)#bgp dampening 2 2000 3000 10 ?
route-map Route-map to specify criteria for dampening
<cr>
To view a count of dampened routes, history routes, and penalized routes when you enable route
dampening, look at the seventh line of the show ip bgp summary command output, as shown in the
following example (bold).
Dell>show ip bgp summary
BGP router identifier 10.114.8.131, local AS number 65515
BGP table version is 855562, main routing table version 780266
122836 network entrie(s) and 221664 paths using 29697640 bytes of memory
34298 BGP path attribute entrie(s) using 1920688 bytes of memory
29577 BGP AS-PATH entrie(s) using 1384403 bytes of memory
184 BGP community entrie(s) using 7616 bytes of memory
Dampening enabled. 0 history paths, 0 dampened paths, 0 penalized paths
Neighbor AS
10.114.8.34 18508 82883
10.114.8.33 18508 117265
Dell>
To view which routes are dampened (non-active), use the show ip bgp dampened-routes command in
EXEC Privilege mode.

Changing BGP Timers

To configure BGP timers, use either or both of the following commands.
Timer values configured with the neighbor timers command override the timer values configured with the
timers bgp command.
When two neighbors, configured with different keepalive and holdtime values, negotiate for new values,
the resulting values are as follows:
• the lower of the holdtime values is the new holdtime value, and
• whichever is the lower value; one-third of the new holdtime value, or the configured keepalive value
is the new keepalive value.
• Configure timer values for a BGP neighbor or peer group.
CONFIG-ROUTER-BGP mode
neighbors {ip-address | peer-group-name} timers keepalive holdtime
• keepalive: the range is from 1 to 65535. Time interval, in seconds, between keepalive messages
sent to the neighbor routers. The default is 60 seconds.
• holdtime: the range is from 3 to 65536. Time interval, in seconds, between the last keepalive
message and declaring the router dead. The default is 180 seconds.
• Configure timer values for all neighbors.
CONFIG-ROUTER-BGP mode
timers bgp keepalive holdtime
MsgRcvd MsgSent TblVer
79977 780266
25069 780266
InQ OutQ Up/Down State/PfxRcd
0 2 00:38:51 118904
0 20 00:38:50 102759
Border Gateway Protocol IPv4 (BGPv4) 260