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Configuring the BGP4+ GR Helper
A BGP4+ GR helper helps its neighbor complete BGP4+ GR.
- Enabling BGP4+ GR
Enabling or disabling BGP4+ GR may delete and re-establish all BGP4+ sessions and instances. - Configuring BGP4+ GR Session Parameters
Changing the BGP4+ restart period re-establishes BGP4+ peer relationships. - Verifying the Configuration of BGP4+ GR Helper
After configuring BGP4+ GR helper, check the BGP4+ GR status.
Enabling BGP4+ GR
Enabling or disabling BGP4+ GR may delete and re-establish all BGP4+ sessions and instances.
Configuring BGP4+ GR Session Parameters
Changing the BGP4+ restart period re-establishes BGP4+ peer relationships.
Procedure
- Run system-view
The system view is displayed.
- Run bgp as-number
The BGP view is displayed.
- Run graceful-restart timer wait-for-rib timer
The period during which the restarting speaker and receiving speaker wait for End-Of-RIB messages is set.
By default, the period is 600s.
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NOTE: You can adjust BGP4+ GR session parameter values as needed. However, retaining default BGP4+ GR session parameter values is recommended.
- Run commit
The configuration is committed.
Verifying the Configuration of BGP4+ GR Helper
After configuring BGP4+ GR helper, check the BGP4+ GR status.
Example
Run the display bgp ipv6 peer verbose command to view the BGP4+ GR status.
<HUAWEI> display bgp ipv6 peer verbose
BGP Peer is 10:1::1, remote AS 200
Type: EBGP link
BGP version 4, Remote router ID 4.4.4.4
Group ID : 1
BGP current state: Established, Up for 00h00m11s
BGP current event: RecvUpdate
BGP last state: Established
BGP Peer Up count: 2
Port: Local - 179 Remote - 36664
Configured: Active Hold Time: 180 sec Keepalive Time:60 sec
Received : Active Hold Time: 180 sec
Negotiated: Active Hold Time: 180 sec Keepalive Time:60 sec
Peer optional capabilities:
Peer supports bgp multi-protocol extension
Peer supports bgp route refresh capability
Peer supports bgp 4-byte-as capability
Graceful Restart Capability: advertised
Address family IPv6 Unicast: advertised and received
Received: Total 108 messages
Update messages 4
Open messages 2
KeepAlive messages 102
Notification messages 0
Refresh messages 0
Sent: Total 124 messages
Update messages 4
Open messages 18
KeepAlive messages 101
Notification messages 1
Refresh messages 0
Authentication type configured: None
Last keepalive received: 2010-08-20 10:32:32
Minimum route advertisement interval is 30 seconds
Optional capabilities:
Route refresh capability has been enabled
4-byte-as capability has been enabled
Peer Preferred Value: 0
Routing policy configured:
No routing policy is configured
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