Enabling the ipv6 bgp orf capability – H3C Technologies H3C SR8800 User Manual

Page 372

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Step Command

Remarks

3.

Enter IPv6 address family
view.

ipv6-family

N/A

4.

Save all routes from an IPv6
peer/peer group, not letting

them go through the inbound

policy.

peer { ipv6-group-name | ipv6-address }
keep-all-routes

Optional
Not saved by default

5.

Return to user viewN/A

return

N/A

6.

Soft-reset BGP connections
manually.

refresh bgp ipv6 { all | ipv6-address | group
ipv6-group-name
| external | internal } { export

| import }

N/A

NOTE:

If the peer keep-all-routes command is used, all routes from the peer/peer group will be saved regardless
of whether the filtering policy is available. These routes will be used to generate IPv6 BGP routes after

soft-reset is performed.

Enabling the IPv6 BGP ORF capability

The BGP Outbound Route Filter (ORF) feature allows a BGP speaker to send its BGP peer a set of ORFs

through route-refresh messages. The peer then applies the ORFs, in addition to its local routing policies
(if any), to filter updates to the BGP speaker, reducing the number of exchanged update messages and

saving network resources.
After you enable the BGP ORF capability, the local BGP router negotiates the ORF capability with the

BGP peer through Open messages. The local BGP router determines whether to carry ORF information
in messages. If yes, it will further determine whether to carry non-standard ORF information in the packets.

After completing the negotiation process and establishing the neighboring relationship, the BGP router

and its BGP peer can exchange ORF information through specific route-refresh messages.
For the parameters configured on both sides for ORF capability negotiation, see

Table 7

.

To enable the BGP ORF capability:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter BGP view.

bgp as-number

N/A

3.

Enter IPv6 address family
view.

ipv6-family

N/A

4.

Enable BGP route refresh for a
peer/peer group.

peer { group-name |
ipv6-address } capability-advertise

route-refresh

Enabled by default.

5.

Enable the non-standard ORF

capability for a BGP
peer/peer group.

peer { group-name |
ipv6-address } capability-advertise

orf non-standard

Optional.
By default, standard BGP ORF
capability defined in RFC 5291

and RFC 5292 is supported.

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