337
Step Command
Remarks
5.
Enable the non-standard ORF
capability for a BGP peer or
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.
6.
Enable the ORF IP prefix
negotiation capability for a
BGP peer or peer group.
peer
{
group-name
|
ip-address
|
ipv6-address
}
capability-advertise
orf ipv6-prefix
{
both
|
receive
|
send
}
Not supported by default.
Table 9
Description of the both, send, and receive parameters and the negotiation result
Local parameter
Peer parameter
Negotiation result
send
•
receive
•
both
The ORF sending capability is enabled locally and
the ORF receiving capability is enabled on the
peer.
receive
•
send
•
both
The ORF receiving capability is enabled locally and
the ORF sending capability is enabled on the peer.
both both
Both the ORF sending and receiving capabilities
are enabled locally and on the peer.
Enabling 4-byte AS number suppression
When a switch that supports 4-byte AS numbers sends an Open message for peer relationship
establishment, the Optional parameters field of the message indicates that the AS number occupies four
bytes—in the range of 1 to 4294967295. If the peer device does not support 4-byte AS numbers (for
examples, it supports only 2-byte AS numbers), the peer relationship cannot be established.
After you enable the 4-byte AS number suppression function, the peer device can then process the Open
message even though it does not support 4-byte AS numbers, and the IPv6 BGP peer relationship can be
established.
If the peer device supports 4-byte AS numbers, do not enable the 4-byte AS number suppression
function;
otherwise, the IPv6 BGP peer relationship cannot be established.
To enable 4-byte AS number suppression:
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 4-byte AS
number suppression.
peer
{
group-name
|
ip-address
}
capability-advertise suppress-4-byte-as
Disabled by default.
