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990 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
BGP4 parameters
30
Immediately
The following parameter changes take effect immediately:
• Enable or disable BGP.
• Set or change the local AS.
• Add neighbors.
• Change the update timer for route changes.
• Disable or enable fast external fallover.
• Specify individual networks that can be advertised.
• Change the default local preference, default information originate setting, or administrative
distance.
• Enable or disable use of a default route to resolve a BGP4 next-hop route.
• Enable or disable MED (metric) comparison.
• Require the first AS in an Update from an EBGP neighbor to be the neighbor AS.
• Change MED comparison parameters.
• Disable comparison of the AS-Path length.
• Enable comparison of the router ID.
• Enable next-hop recursion.
• Enable or disable auto summary.
• Change the default metric.
• Disable or re-enable route reflection.
• Configure confederation parameters.
• Disable or re-enable load sharing.
• Change the maximum number of load-sharing paths.
• Change other load-sharing parameters.
• Define route flap dampening parameters.
• Add, change, or negate redistribution parameters (except changing the default MED; see
below).
• Add, change, or negate route maps (when used by the network command or a redistribution
command).
After resetting neighbor sessions
The following parameter changes take effect only after the router BGP4 sessions are cleared, or
reset using the “soft” clear option. (Refer to “Closing or resetting a neighbor session” on
page 1096.)
The parameter are as follows:
• Change the Hold Time or Keep Alive Time.
• Aggregate routes.
• Add, change, or negate filter tables.