H3C Technologies H3C S6800 Series Switches - Manual (Page 452)

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Step Command Remarks
7. Allow the local AS number
to appear in the AS_PATH
attribute of routes received
from the peer, and set the
maximum number of
repetitions.
peer { group-name | ip-address
[ mask-length ] } allow-as-loop
[ number ]
By default, BGP discards
incoming route updates that
contain the local AS number.
8. Redistribute remote site
routes advertised by the PE
into BGP.
import-route protocol [ { process-id |
all-processes } [ med med-value |
route-policy route-policy-name ] * ]
By default, no routes are
redistributed into BGP.
9. (Optional.) Configure
filtering of advertised
routes.
filter-policy { acl-number | prefix-list
prefix-list-name } export [ protocol
process-id ]
By default, BGP does not filter
advertised routes.
10. (Optional.) Configure
filtering of received routes. filter-policy { acl-number | prefix-list
prefix-list-name } import By default, BGP does not filter
received routes.
2. Configure a VPN site:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Configure the MCE as an
EBGP peer.
peer { group-name | ip-address
[ mask-length ] } as-number
as-number
N/A
4. Enter BGP-VPN 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 | route-policy
route-policy-name ] * ]
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