PLANET XGS3-24040 - Manual (Page 520)

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<1-20000>: Respectively the penalty reuse border and restrain border.
<1-255>: Maximum restrain route time, in minutes.
Default: Half-life of accessible route is 15 minutes, 15 minutes for inaccessible. The restrain border is
2000, reuse border is 750, and maximum restrain time is 60 minutes.
Command Mode: BGP Route Mode.
Usage Guide: Abundant route update due to unstable route could be reduced with route dampening
technology, of which the algorithm is lay penalty on the route when the route fluctuates, and when penalty
exceeds the restrain border this route will no longer be advertised. The penalty value will be reduced by
time by the half-life index regulation if the route keeps stable and finally be advertised again when the
penalty falls below the border or the restrain time exceeds the maximum restrain time. This command is
for enabling/disabling the route dampening and configuring its parameters.
Example: Enable the route dampening and use the parameter configuration by default.
Switch(config-router)# bgp dampening
35.16 bgp default
Command: bgp default {ipv4-unicast|local-preference <0-4294967295>}
no bgp default {ipv4-unicast|local-preference [<0-4294967295>]}
Function: Set the BGP defaults, the “no bgp default {ipv4-unicast|local-preference
[<0-4294967295>]}” command cancels this configuration.
Parameter:<0-4294967295>: Default local priority.
Default: The IPv4 unicast is default enabled when BGP is enabled. The default priority is 100.
Command Mode: BGP route mode.
Usage Guide: IPv4 unicast address-family is default enabled in BGP. Cancel this setting with no bgp
default ipv4-unicast command so to not enable this address-family in default. Default local priority can be
configured through bgp default local-preference command.
Example:
Configure in 10.1.1.66:
Switch(config)#router bgp 200
Switch(config-router)# bgp default local-preference 500
35.17 bgp deterministic-med
Command: bgp deterministic-med
no bgp deterministic-med
Function: Use the best MED for the same prefix in the AS to compare with other AS. The “no bgp
deterministic-med” cancels this configuration.