Configuring A Bgp Connectretry Timer - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
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Pre-configuration Tasks
Before adjusting the BGP network convergence speed, complete the following tasks:
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Data Preparation
To adjust the BGP network convergence speed, you need the following data.
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7.12.2 Configuring a BGP ConnectRetry Timer

You can control the speed at which BGP peer relationships are established by changing the BGP
ConnectRetry timer value.
Issue 01 (2012-03-15)
fails. This speeds up TCP connection establishment. If a BGP peer flaps constantly, the
ConnectRetry interval can be increased to suppress route flapping caused by BGP peer
flapping. This speeds up route convergence.
BGP Keepalive and hold timers
BGP uses Keepalive messages to maintain BGP peer relationships and monitor connection
status.
After establishing a BGP connection, two peers send Keepalive messages periodically to
each other to detect the BGP connection status. If the switch does not receive any Keepalive
message or any other types of packets from the peer within the hold time, the switch
considers the BGP connection interrupted and closes the BGP connection.
BGP MinRouteAdvertisementIntervalTimer
BGP does not periodically update a routing table. When BGP routes change, BGP updates
the changed BGP routes in the BGP routing table by sending Update messages. If a route
changes frequently, to prevent the switch from sending Update messages upon every
change, set the interval at which Update messages are sent.
Rapid EBGP connection reset
Rapid EBGP connection reset is enabled by default so that EBGP can quickly detect the
status of interfaces used to establish EBGP connections. If the interface status is changed
frequently, rapid EBGP connection reset can be disabled. As a result, direct EBPG sessions
will not be reestablished and deleted as interface alternates between Up and Down. This
implements rapid network convergence.
BGP tracking
BGP tracking can speed up network convergence by adjusting the interval between peer
unreachability discovery and connection interruption. BGP tracking is easy to deploy and
has good extensibility.
Configuring Basic BGP Functions
Data
Value of the ConnectRetry timer
Values of BGP Keepalive and hold timers
Value of the MinRouteAdvertisementIntervalTimer
Interval between peer unreachability discovery and connection interruption
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