Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.1.0 - Page 311
Fast external fallover
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password 9 f785498c228f365898c0efdc2f476b4b27c47d972c3cd8cd9b91f518c14ee42d ! neighbor 11.1.1.2 inherit template pass password 9 01320afb39f49134882b0a9814fe6e8e228f616f60a35958844775314c00f0e5 remote-as 10 no shutdown Example configuration in Peer 2 ROUTER-NEIGHBOR mode OS10# configure terminal OS10(config)# interface ethernet 1/1/5 OS10(conf-if-eth1/1/5)# no switchport ip OS10(conf-if-eth1/1/5)# ip address 11.1.1.2/24 OS10(conf-if-eth1/1/5)# router bgp 20 OS10(config-router-bgp-20)# neighbor 11.1.1.1 OS10(config-router-neighbor)# no shutdown OS10(config-router-neighbor)# remote-as 20 OS10(config-router-neighbor)# password abcdell ROUTER-TEMPLATE mode OS10# configure terminal OS10(config)# interface ethernet 1/1/5 OS10(conf-if-eth1/1/5)# no switchport OS10(conf-if-eth1/1/5)# ip address 11.1.1.2/24 OS10(conf-if-eth1/1/5)# router bgp 20 OS10(config-router-bgp-20)# template pass OS10(config-router-template)# password 9 f785498c228f365898c0efdc2f476b4b27c47d972c3cd8cd9b91f518c14ee42d OS10(config-router-template)# exit OS10(config-router-bgp-20)# neighbor 11.1.1.1 OS10(config-router-neighbor)# inherit template pass View password configuration in peer 2 OS10(config-router-neighbor)# show configuration ! neighbor 11.1.1.1 password 9 0fbe1ad397712f74f4df903b4ff4b7b6e22cc377180432d7523a70d403d41565 remote-as 20 no shutdown OS10(config-router-neighbor)# do show running-configuration bgp ! router bgp 20 neighbor 11.1.1.2 password 9 f785498c228f365898c0efdc2f476b4b27c47d972c3cd8cd9b91f518c14ee42d remote-as 20 no shutdown Fast external fallover Fast external fallover terminates EBGP sessions of any directly adjacent peer if the link used to reach the peer goes down. BGP does not wait for the hold-down timer to expire. Fast external fallover is enabled by default. To disable or re-enable it, use the [no] fast-external-fallover command. For the fast-external-fallover command to take effect on an established BGP session, you must reset the session using the clear ip bgp {* | peer-ipv4-address | peer-ipv6-address} command. View fast external fallover configuration OS10(config)# do show running-configuration bgp ! Layer 3 311