Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 404

bgp four-octet-as-support Enable 4-byte support for the BGP process. C9000 Series Syntax bgp four-octet-as-support To disable fast external failover, use the no bgp four-octet-as-support command. Defaults Disabled (supports 2-byte format) Command Modes ROUTER BGP Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. The following is a list of the Dell Networking OS version history for this command. Version 9.9(0.0) 9.2(1.0) 8.3.19.0 8.3.11.1 8.3.7.0 7.8.1.0 7.7.1.0 Description Introduced on the C9010. Introduced on the Z9500. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced on the S-Series. Introduced on the C-Series. Usage Information Routers supporting 4-byte ASNs advertise that function in the OPEN message. The behavior of a 4-byte router is 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 byte or 2 byte identified routers. You cannot mix them. Where the 2-byte format is from 1 to 65535, the 4-byte format is from 1 to 4294967295. Both formats are accepted and the advertisements reflect the entered format. For more information about using the 2 byte or 4-byte format, refer to the Dell Networking OS Configuration Guide. 404 Border Gateway Protocol