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HP 5920 Series User Manual

HP 5920 Series
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320
ipv6-address: Displays BGP update group information for the specified IPv6 BGP peer.
Usage guidelines
The update group feature classifies BGP peers that have the same export policy into an update group.
When BGP advertises routes to the peers in the update group, it uses the export policy to filter the routes
and generates route updates for all the peers only once.
With this feature, BGP performs one-time policy filtering and encapsulation for a prefix before
advertising the prefix to all the peers in the update group. For example, BGP advertises 1000 prefixes to
1000 peers that have the same export policy (in data centers for example). Without the update group
feature, BGP matches the export policy 1000 × 1000 times. With the update group feature, BGP
matches the export policy only 1000 × 1 times, improving encapsulation efficiency 1000 times.
If no parameters are specified, this command displays all update groups for the specified address family
on the public network.
Examples
# Display information about all BGP update groups for the public network.
<Sysname> display bgp update-group ipv4
Update-group ID: 0
Type: EBGP link
4-byte AS number: Supported
Minimum time between advertisements: 30 seconds
OutQ: 0
Members: 1
99.1.1.1
# Display update group information for the peer 1.1.1.2 on the public network.
<Sysname> display bgp update-group ipv4 1.1.1.2
Update-group ID: 0
Type: EBGP link
4-byte AS number: Supported
Minimum time between advertisements: 30 seconds
OutQ: 0
Members: 2
1.1.1.2
1.1.1.3
# Display update group information for the BGP VPNv4 peer 1.1.1.2 in VPN instance vpn1.
<Sysname> display bgp update-group vpnv4 vpn-instance vpn1 1.1.1.2
Update-group ID: 0
Type: EBGP link
4-byte AS number: Supported
Nesting-vpn: vpn1
Minimum time between advertisements: 30 seconds
OutQ: 0
Members: 2
1.1.1.2
1.1.1.3

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HP 5920 Series Specifications

General IconGeneral
BrandHP
Model5920 Series
CategorySwitch
LanguageEnglish

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