User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
13-11
C
ONFIGURING
BGP
config bgp add dampening <halflife> <reuse>
<suppress> <max_suppression> bgp-policy
Configures BGP route flap dampening used to
suppress the advertisement of routes when the
routes are changing rapidly. Specify the
following:
■
halflife — The time after which the
penalty is decreased to half the original
amount. The range is 1 to 45 minutes. The
default setting is 15 minutes.
■
reuse — If the penalty of a flapping route
is decreased below this number, the
suppression on this route is removed. The
range is 1 to 32,000. The default setting is
750.
■
suppress — If the penalty of a flapping
route is above this number, this route is
suppressed. The setting for suppress must
be larger than the setting for reuse. The
range is 1 to 32,000. The default setting is
2000.
■
max_suppression — A multiplier used to
determine the maximum amount of time that
a route can be suppressed. The maximum
suppression time is <halflife> *
<max_suppression>.
■
bgp_policy — Specifies the BGP route.
config bgp add network
<ipaddress>/<mask_length> {<route_map>}
Adds a network to be originated from this
router. The network must be reachable by the
router.
config bgp as-number <as_number> Changes the local AS number used by BGP.
BGP must be disabled before the AS number
can be changed.
config bgp cluster-id <cluster_id> Appends a BGP route reflector cluster ID to the
cluster list of a route. Used when multiple
router reflectors are used within the same
cluster of clients.
BGP must be disabled before configuring the
cluster ID.
config bgp confederation-id <confederation_id>
Table 13-1: BGP Configuration Commands (continued)
Command Description