Dell S3100 EMC Command Line Reference Guide for the Series 9.14.2.4 - Page 329
Border Gateway Protocol, BGP IPv4 Commands, address-family
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9 Border Gateway Protocol BGP is an external gateway protocol that transmits interdomain routing information within and between autonomous systems (AS). BGP version 4 (BGPv4) supports classless inter-domain routing (CIDR) and the aggregation of routes and AS paths. Basically, two routers (called neighbors or peers) exchange information including full routing tables and periodically sent messages to update those routing tables. NOTE: For more information about configuring the border gateway protocol (BGP), see the BGP section in the Dell EMC Networking OS Configuration Guide. Topics: • BGP IPv4 Commands • MBGP Commands • BGP Extended Communities (RFC 4360) • IPv6 BGP Commands • IPv6 MBGP Commands BGP IPv4 Commands Border Gateway Protocol (BGP) is an external gateway protocol that transmits interdomain routing information within and between Autonomous Systems (AS). BGP supports classless interdomain routing (CIDR) and the aggregation of routes and AS paths. Basically, two routers (called neighbors or peers) exchange information including full routing tables and periodically send messages to update those routing tables. NOTE: Dell EMC Networking OS supports 2-byte (16-bit) and 4-byte (32-bit) format for autonomous system numbers (ASNs), where the 2-byte format is 1 to 65535 and the 4-byte format is 1 to 4294967295. NOTE: Dell EMC Networking OS supports dotted format as well as the traditional plain format for AS numbers. The dot format is displayed when using the show ip bgp commands. To determine the comparable dot format for an ASN from a traditional format, use ASN/65536. ASN%65536. For more information about using the 2- or 4-byte format, refer to the Dell EMC Networking OS Configuration Guide. address-family Enable the IPv4 multicast or the IPv6 address family. Syntax Parameters address-family {ipv4 multicast | ipv6 unicast} [vrf vrf-name] ipv4 multicast vrf vrf-name Enter the keyword ipv4 followed by the keyword multicast to enable BGPv4 multicast mode. Enter the keyword vrf and then the name of the VRF to enable VRF mode. NOTE: It is not be possible to enable VRF mode for IPv6 unicast without configuring the corresponding IPv4 unicast mode for the same VRF. While deletion, whenever the IPv4 VRF mode is deleted for the VRF, Dell EMC Networking OS automatically deletes the IPv6 VRF configurations as well. ipv6 unicast Enter the keyword ipv6 followed by the keyword unicast to enable BGPv6 mode. Defaults Not configured. Command Modes ROUTER BGP Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide. Border Gateway Protocol 329
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