H3C S6550X-HI Series Command Reference Manual page 1742

Views
BGP IPv4 unicast address family view
BGP-VPN IPv4 unicast address family view
BGP IPv6 unicast address family view
BGP-VPN IPv6 unicast address family view
Predefined user roles
network-admin
Usage guidelines
The default setting for EBGP route advertisement brings about a large number of BGP routes and is
not friendly to network maintenance. To resolve this issue, use this command. When the first AS
number of an EBGP route to be advertised is the same as that of an EBGP peer, BGP does not
advertise the route to that peer. This can reduce the number of routes received by EBGP peers.
Examples
# In BGP IPv4 unicast address family view, enable first-AS-number check for EBGP routes.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp-default] address-family ipv4 unicast
[Sysname-bgp-default-ipv4] peer-as-check enable
peer as-number (for a BGP peer group)
Use
peer as-number
Use
undo peer as-number
Syntax
peer group-name as-number as-number
undo peer group-name as-number
Default
No AS number is specified for a peer group.
Views
BGP instance view
BGP-VPN instance view
Predefined user roles
network-admin
Parameters
group-name
peer group must have been created.
as-number
in the range of 1 to 4294967295 or a dotted decimal string in the range of 0.1 to 65535.65535.
Usage guidelines
This command applies only to a peer group with no peers in it.
When you specify an AS number for a peer group and want to add peers to it, make sure the AS
number of the peers is the same as the peer group.
to specify an AS number for a peer group.
to delete the AS number of a peer group.
: Specifies a name for a peer group, a case-sensitive string of 1 to 47 characters. The
: Specifies an AS number for a peer group. The value of this argument can be an integer
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