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ManualsBrandsDell ManualsAccess PlatformsPowerSwitch S5000
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Related
Commands
show ip bgp ipv6 unicast neighbors – displays IPv6 routing information exchanged by BGP neighbors.
show ip protocols – views information on routing protocols.
bgp fast-external-failover
Enable the fast external failover feature, which immediately resets the BGP session if a link to a directly connected external peer
fails.
S5000
Syntax
bgp fast-external-failover
To disable fast external failover, use the no bgp fast-external-failover command.
Defaults Enabled
Command Modes ROUTER BGP
Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
The bgp fast-external-failover command appears in the show config command output.
bgp four-octet-as-support
Enable 4-byte support for the BGP process.
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
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 8.3.19.0 Introduced on the S4820T.
Version 8.4.2.1 Introduced on the C-Series and S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.4.1.0 Introduced on the E-Series TeraScale.
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- 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- or 4-Byte format, refer to the Dell Networking OS Configuration
Guide.
846 IPv6 Border Gateway Protocol (IPv6 BGP)