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H3C Technologies H3C S7500E Series Switches User Manual

Page 259

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6-34

Configuring Routing Features for BGP VPNv4 Subaddress Family

With BGP VPNv4 subaddress family, there are a variety of routing features that are the same as those
for BGP IPv4 unicast routing. You can select any of the features as required.

Configuring common routing features for all types of subaddress families

For VPN applications, BGP address families include BGP VPN-IPv4 address family, BGP-L2VPN
address family, and VPLS address family. Every command in the following table has the same function
on BGP routes for each type of the address families.

Follow these steps to configure common routing features for all types of subaddress families:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter BGP view

bgp as-number

Required

Configure the remote PE as the

peer

peer ip-address

as-number

as-number

Required

Specify the interface for TCP

connection

peer ip-address

connect-interface interface-type

interface-number

Required

ipv4-family vpnv4

l2vpn-family

Enter address family view

vpls-family

Required

Use one of the commands as

needed.

Allow the local AS number to

appear in the AS_PATH attribute

of a received route and set the

maximum number of repetitions

peer

{ group-name | ip-address }

allow-as-loop

[ number ]

Optional

Enable a peer or peer group for an

address family and enable the

exchange of BGP routing

information of the address family

peer

{ group-name | ip-address }

enable

Required

By default, only IPv4 routing

information is exchanged between

BGP peers.

Add a peer into an existing peer

group

peer ip-address group

group-name

Optional