Service Manual
In the event of an enfore-rst-as check failure, the existing BGP session is apped.
Related Commands
• show ip bgp neighbors — view the information the BGP neighbors exchange.
• show ip protocols — view 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.
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
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
Usage Information
The bgp fast-external-fallover command appears in the show config command output.
The fast external fallover conguration is applied only after you manually reset all the existing BGP sessions. As a
result, after you execute this command, you must also manually execute the clear ip bgp command in order
for the conguration to take eect.
354 Border Gateway Protocol