Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 278
bgp fast-external-fallover, bgp four-octet-as-support
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www.dell.com | support.dell.com bgp fast-external-fallover c e s 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, enter no bgp fast-external-fallover. Defaults Enabled. Command Modes ROUTER BGP Usage The bgp fast-external-fallover command appears in the show config command output. Information Command History Version 8.3.5.0 Version 7.8.1.0 Version 7.7.1.0 Introduced on the S55. Introduced support on S-Series Introduced support for C-Series bgp four-octet-as-support c e s Enable 4-byte support for the BGP process. Syntax bgp four-octet-as-support To disable fast external fallover, enter no bgp four-octet-as-support. Defaults Disabled (supports 2-Byte format) Command Modes ROUTER BGP Usage Information Routers supporting 4-Byte ASNs advertise that function in the OPEN message. The behavior of a 4-Byte router will be slightly different depending on whether it is speaking to a 2-Byte router or a 4-Byte router. When creating Confederations, all the routers in the Confederation must be 4 or 2 byte identified routers. You cannot mix them. Where the 2-Byte format is 1-65535, the 4-Byte format is 1-4294967295. Both formats are accepted, and the advertisements will reflect the entered format. For more information about using the 2 or 4-Byte format, refer to the FTOS Configuration Guide. Command History Version 8.3.5.0 Version 7.8.1.0 Version 7.7.1.0 Introduced on the S55. Introduced support on S-Series Introduced command Introduced support on C-Series 278 | Border Gateway Protocol IPv4(BGPv4)