Netgear XCM8806 - 8800 SERIES 6-SLOT CHASSIS SWITCH 사용자 설명서

This cease notification subcode is sent when the following configuration entities change:

BGP neighbor is added to a peer group 

BGP neighbor is configured as a route-reflector client 

BGP neighbor is part of a peer group and the following configuration elements of the peer 

group are changed:

Password

Remote-as

Hold-time, keepalive-time

Source interface

Soft-in-reset

This cease notification subcode is sent when there is a BGP connection collision.

Fast External Fallover

BGP fast external fallover uses the BGP protocol to converge quickly in the event of a link 
failure that connects it to an EBGP neighbor. 

The fast external fallover module consists of two commands; one for enabling fallover 
(

enable bgp fast-external-fallover

) and one for disabling fallover (

disable bgp 

fast-external-fallover

). Fast external fallover is disabled by default.

These commands apply to all directly-connected external BGP neighbors. 

When BGP fast external fallover is enabled, the directly-connected EBGP neighbor session 
is immediately reset when the connecting link goes down.

If BGP fast external fallover is disabled, BGP waits until the default hold timer expires (3 
keepalives) to reset the neighboring session. In addition, BGP may tear down the session 
somewhat earlier than hold timer expiry if BGP detects that the TCP session and it's directly 
connected link is broken (BGP detects this while sending or receiving data from TCP socket).

Capability Negotiation

BGP supports the following capabilities by default:

IPv4 Unicast address family

IPv4 Multicast address family

Route-Refresh (new, code = 64)

4-Byte-AS (code = 65)

Route Refresh Cisco style (code = 128)