Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 745

53-1002269-02

Chapter

Configuring BGP4

This chapter provides details on how to configure Border Gateway Protocol version 4 (BGP4) using

the CLI.

BGP4 is described in RFC 1771. The Dell implementation fully complies with RFC 1771. The Dell

BGP4 implementation also supports the following RFCs:

• RFC 1745 (OSPF Interactions)

• RFC 1997 (BGP Communities Attributes)

• RFC 2385 (TCP MD5 Signature Option)

• RFC 2439 (Route Flap Dampening)

• RFC 2796 (Route Reflection)

• RFC 2842 (Capability Advertisement)

To display BGP4 configuration information and statistics, refer to “Displaying BGP4 information” on

page 816.

This chapter shows the commands you need in order to configure the Layer 3 Switch for BGP4.

NOTE

Your Layer 3 Switch management module must have 32MB or higher to run BGP4.

NOTE

PowerConnect B-Series TI24X devices support up to 12,000 BGP routes.

Overview of BGP4

BGP4 is the standard Exterior Gateway Protocol (EGP) used on the Internet to route traffic between

Autonomous Systems (AS) and to maintain loop-free routing. An autonomous system is a collection

of networks that share the same routing and administration characteristics. For example, a

corporate intranet consisting of several networks under common administrative control might be

considered an AS. The networks in an AS can but do not need to run the same routing protocol to

be in the same AS, nor do they need to be geographically close.

Routers within an AS can use different Interior Gateway Protocols (IGPs) such as RIP and OSPF to

communicate with one another. However, for routers in different ASs to communicate, they need to

use an EGP. BGP4 is the standard EGP used by Internet routers and therefore is the EGP

implemented on Layer 3 Switches.