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peer advertise-community
Use
peer advertise-community
to advertise the COMMUNITY attribute to a peer or peer group.
Use
undo peer advertise-community
to disable the COMMUNITY attribute advertisement to a peer or
peer group.
Syntax
In BGP IPv4 unicast address family view/BGP-VPN IPv4 unicast address family view/BGP VPNv4
address family view:
peer
{
group-name
|
ip-address
}
advertise-community
undo peer
{
group-name
|
ip-address
}
advertise-community
In BGP IPv6 unicast address family view:
peer
{
group-name
|
ip-address
|
ipv6-address
}
advertise-community
undo peer
{
group-name
|
ip-address
|
ipv6-address
}
advertise-community
Default
No COMMUNITY attribute is advertised to any peer or peer group.
Views
BGP IPv4 unicast address family view, BGP-VPN IPv4 unicast address family view, BGP VPNv4 address
family view, BGP IPv6 unicast address family view
Predefined user roles
network-admin
Parameters
group-name
: Specifies a peer group by its name, a case-sensitive string of 1 to 47 characters. The peer
group must have been created.
ip-address
: Specifies a peer by its IP address. The peer must have been created.
ipv6-address
: Specifies a peer by its IPv6 address. The peer must have been created.
Usage guidelines
The COMMUNITY attribute is a group of specific data carried in update messages. A route can carry
one or more COMMUNITY attribute values (each is represented by a 4-byte integer). The receiving
router processes the route (for example, determining whether to advertise the route and the scope for
advertising the route) based on the COMMUNITY attribute values.
After you execute the
peer advertise-community
command, routing updates advertised to the peer carry
the COMMUNITY attribute.
After you execute the
undo peer advertise-community
command, BGP, upon receiving a route with the
COMMUNITY attribute, removes the COMMUNITY attribute before sending the route to the peer or peer
group.
Examples
# In BGP IPv4 unicast address family view, advertise the COMMUNITY attribute to peer group
test
.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] address-family ipv4 unicast
