Border Gateway Protocol; Bgp Ipv4 Commands - Dell Force10 S4810P Reference Manual

Ftos command line reference guide for the s4810 system ftos 9.1.(0.0)

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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.

BGP is supported in the following:

FTOS Version

Platform Support

E-Series ExaScale

E-Series TeraScale

NOTE: For more information about configuring the border gateway protocol (BGP), refer to the BGP chapter in the

FTOS Configuration Guide .

This chapter contains the following sections:

BGPv4 Commands

MBGP Commands

BGP Extended Communities (RFC 4360)

IPv6 BGP Commands

IPv6 MBGP 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: FTOS Version 7.7.1 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: FTOS Version 8.3.1.0 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

FTOS Configuration Guide .

format, refer to the