10
Step Command
Remarks
4.
Enter BGP IPv4 unicast
address family view.
address-family ipv4
[
unicast
]
N/A
5.
Enable BGP to exchange
IPv4 unicast routes with the
peer.
peer
{
group-name
|
ip-address
[
mask-length
] }
enable
By default, BGP does not
exchange IPv4 unicast routes
with any peer.
6.
Redistribute the IGP routes
of the VPN into BGP.
import-route
protocol
[ {
process-id
|
all-processes
}
[
med med-value
] ]
By default, no routes are
redistributed into BGP.
A VPN site must advertise the
VPN network addresses it can
reach to the connected MCE.
Configuring IBGP between MCE and VPN site
To run IBGP between an MCE and a VPN site, you must configure a BGP peer for each VPN
instance on the MCE, and redistribute the IGP routes of each VPN instance on the VPN site.
1.
Configure the MCE:
Step
Command Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view.
bgp as-number
N/A
3.
Enter BGP-VPN instance
view.
ip vpn-instance
vpn-instance-name
N/A
4.
Configure an IBGP peer.
peer
{
group-name
|
ip-address
[
mask-length
] }
as-number
as-number
N/A
5.
Enter BGP-VPN IPv4
unicast address family
view.
address-family ipv4
[
unicast
]
N/A
6.
Enable BGP to exchange
IPv4 unicast routes with the
peer.
peer
{
group-name
|
ip-address
[
mask-length
] }
enable
By default, BGP does not
exchange IPv4 unicast routes
with any peer.
7.
(Optional.) Configure the
system to be the RR, and
specify the peer as the
client of the RR.
peer
{
group-name
|
ip-address
[
mask-length
] }
reflect-client
By default, no RR or RR client is
configured.
After you configure a VPN site
as an IBGP peer, the MCE does
not advertise the BGP routes
learned from the VPN site to
other IBGP peers, including
VPNv4 peers. The MCE
advertises routes learned from a
VPN site only when you
configure the VPN site as a
client of the RR (the MCE).
8.
Redistribute remote site
routes advertised by the
PE into BGP.
import-route
protocol
[ {
process-id
|
all-processes
}
[
med med-value
] ]
By default, no routes are
redistributed into BGP.
9.
(Optional.) Configure
filtering of advertised
routes.
filter-policy
acl-number
export
[
protocol process-id
]
By default, BGP does not filter
advertised routes.
10.
(Optional.) Configure
filtering of received routes.
filter-policy
acl-number
import
By default, BGP does not filter
received routes.
