Debugging Bgp - Dell S4048T Configuration Manual

Debugging BGP

To enable BGP debugging, use any of the following commands.
• View all information about BGP, including BGP events, keepalives, notifications, and updates.
EXEC Privilege mode
debug ip bgp [ip-address | peer-group peer-group-name] [in | out]
• View information about BGP route being dampened.
EXEC Privilege mode
debug ip bgp dampening [in | out]
• View information about local BGP state changes and other BGP events.
EXEC Privilege mode
debug ip bgp [ip-address | peer-group peer-group-name] events [in | out]
• View information about BGP KEEPALIVE messages.
EXEC Privilege mode
debug ip bgp [ip-address | peer-group peer-group-name] keepalive [in | out]
• View information about BGP notifications received from or sent to neighbors.
EXEC Privilege mode
debug ip bgp [ip-address | peer-group peer-group-name] notifications [in | out]
• View information about BGP updates and filter by prefix name.
EXEC Privilege mode
debug ip bgp [ip-address | peer-group peer-group-name] updates [in | out]
[prefix-list name]
• Enable soft-reconfiguration debug.
EXEC Privilege mode
debug ip bgp {ip-address | peer-group-name} soft-reconfiguration
To enhance debugging of soft reconfig, use the bgp soft-reconfig-backup command only when
route-refresh is not negotiated to avoid the peer from resending messages.
In-BGP is shown using the show ip protocols command.
Dell Networking OS displays debug messages on the console. To view which debugging commands are
enabled, use the show debugging command in EXEC Privilege mode.
To disable a specific debug command, use the keyword no then the debug command. For example, to
disable debugging of BGP updates, use no debug ip bgp updates command.
To disable all BGP debugging, use the no debug ip bgp command.
To disable all debugging, use the undebug all command.
Border Gateway Protocol IPv4 (BGPv4) 264