Configuring Advanced Bgp; Information About Advanced Bgp - Cisco Nexus 7000 Series Configuration Manual

S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m .

Configuring Advanced BGP

This chapter describes how to configure advanced features of the Border Gateway Protocol (BGP) on the
Cisco NX-OS device.
This chapter includes the following sections:
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Information About Advanced BGP

BGP is an interdomain routing protocol that provides loop-free routing between organizations or
autonomous systems. Cisco NX-OS supports BGP version 4. BGP version 4 includes multiprotocol
extensions that allow BGP to carry routing information for IP multicast routes and multiple Layer 3
protocol address families. BGP uses TCP as a reliable transport protocol to create TCP sessions with
other BGP-enabled devices called BGP peers. When connecting to an external organization, the router
creates external BGP (eBGP) peering sessions. BGP peers within the same organization exchange
routing information through internal BGP (iBGP) peering sessions.
This section includes the following topics:
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OL-20002-02
Information About Advanced BGP, page 11-1
Licensing Requirements for Advanced BGP, page 11-11
Prerequisites for BGP, page 11-12
Guidelines and Limitations for BGP, page 11-12
Configuring Advanced BGP, page 11-13
Verifying Advanced BGP Configuration, page 11-42
Displaying BGP Statistics, page 11-44
Related Topics, page 11-44
Default Settings, page 11-44
Additional References, page 11-45
Feature History for BGP, page 11-45
Peer Templates, page 11-2
Authentication, page 11-2
Route Policies and Resetting BGP Sessions, page 11-3
eBGP, page 11-3
iBGP, page 11-3
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
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