Dell Force10 Z9000 - Bgp Fast-External-Fallover; Bgp Four-Octet-As-Support

Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
Version 7.4.1.0 Introduced.
Usage
Information
This is enabled by default, that is for all updates received from EBGP peers, BGP ensures that
the first AS of the first AS segment is always the AS of the peer. If not, the update is dropped
and a counter is increments. Use the show ip bgp neighbors command to view the
“failed enforce-first-as check” counter.
If you disable the enforce-first-as command, it can be viewed using the show ip
protocols command.
Related
Commands
show ip bgp neighbors – views the information exchanged by BGP neighbors.
show ip protocols – views information on routing protocols.
bgp fast-external-fallover
Enable the fast external fallover feature, which immediately resets the BGP session if a link to a directly connected
external peer fails.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
bgp fast-external-fallover
To disable fast external fallover, use the no bgp fast-external-fallover command.
Defaults Enabled
Command Modes ROUTER BGP
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
Usage
Information
The bgp fast-external-fallover command appears in the show config
command output.
bgp four-octet-as-support
Enable 4-byte support for the BGP process.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax
bgp four-octet-as-support
To disable fast external fallover, use the no bgp four-octet-as-support command.
Defaults Disabled (supports 2–byte format)
Command Modes ROUTER BGP
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