CLI Guide

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 Networking OS Configuration Guide.

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 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 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 Networking OS Configuration

Guide.

address-family

Enable the IPv4 multicast or the IPv6 address family.

Syntax

address-family [ipv4 {multicast | vrf vrf-name} | ipv6 unicast

[vrf vrf-name]]

Parameters

ipv4 multicast Enter the keyword ipv4 followed by the keyword

multicast to enable BGPv4 multicast mode.

ipv4 vrf vrf-name Enter the keyword ipv4 followed by the keyword vrf and

then the name of the VRF to enable VRF mode.

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Border Gateway Protocol