Dell BigIron RX Series, Configuration Manual

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824 BigIron RX Series Configuration Guide
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Displaying BGP4 information
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Clearing diagnostic buffers
The BigIron RX stores the following BGP4 diagnostic information in buffers:
•
The first 400 bytes of the last packet received that contained an error
•
The last NOTIFICATION message either sent or received by the device
To display these buffers, use options with the show ip bgp neighbors command. Refer to
“Displaying BGP4 neighbor information” on page 829.
This information can be useful if you are working with Brocade Technical Support to resolve a
problem. The buffers do not identify the system time when the data was written to the buffer. If you
want to ensure that diagnostic data in a buffer is recent, you can clear the buffers. You can clear
the buffers for a specific neighbor or for all neighbors.
If you clear the buffer containing the first 400 bytes of the last packet that contained errors, all the
bytes are changed to zeros. The Last Connection Reset Reason field of the BGP neighbor table
also is cleared.
If you clear the buffer containing the last NOTIFICATION message sent or received, the buffer
contains no data.
You can clear the buffers for all neighbors, for an individual neighbor, or for all the neighbors within
a specific peer group.
To clear these buffers for neighbor 10.0.0.1, enter the following commands.
BigIron RX# clear ip bgp neighbor 10.0.0.1 last-packet-with-error
BigIron RX# clear ip bgp neighbor 10.0.0.1 notification-errors
Syntax: clear ip bgp neighbor all | <ip-addr> | <peer-group-name> | <as-num>
last-packet-with-error | notification-errors
The all | <ip-addr> | <peer-group-name> | <as-num> specifies the neighbor. The <ip-addr>
parameter specifies a neighbor by its IP interface with the device. The <peer-group-name>
specifies all neighbors in a specific peer group. The <as-num> parameter specifies all neighbors
within the specified AS. The all parameter specifies all neighbors.
Displaying BGP4 information
You can display the following configuration information and statistics for the BGP4 protocol on the
router:
•
Summary BGP4 configuration information for the router
•
Active BGP4 configuration information (the BGP4 information in the running configuration)
•
Neighbor information
•
Peer-group information
•
Information about the paths from which BGP4 selects routes
•
Summary BGP4 route information
•
The router’s BGP4 route table
•
Route flap dampening statistics
•
Active route maps (the route map configuration information in the running configuration)