Ospf Provider-Edge-To-Customer-Edge Configuration - Cisco 3845 - Security Bundle Router Software Manual

Configuring MPLS VPNs
Command
Step 1
configure terminal
Step 2
router bgp autonomous-system-number
Step 3 address-family ipv4 [unicast] vrf vrf-name
Step 4
redistribute static
Step 5 redistribute connected
Step 6
neighbor address remote-as as-number
Step 7
neighbor address activate
Step 8
end
Step 9
show ip bgp [ipv4] [neighbors]
Step 10 show ip bgp vpnv4 vrf vrf-name
Step 11 show ip route vrf vrf-name
Step 12 copy running-config startup-config
Use the no router bgp as-number global configuration command to delete the BGP routing session.

OSPF Provider-Edge-to-Customer-Edge Configuration

Beginning in privileged EXEC mode, follow these steps on the provider-edge router to configure a
PE-to-PE routing session in a provider network that uses OSPF:
Command
Step 1
configure terminal
Step 2
router ospf process-id vrf vrf-name
Step 3
network ip-address area area-id
Step 4
router-id ip-address
Step 5
domain-id ip-address
Step 6
router ospf process-id vrf vrf-name
Step 7
redistribute bgp as-number subnets [metric
metric-value] [metric-type {1 | 2}]
Step 8
router bgp as-number
address-family ipv4 [unicast] vrf vrf-name
redistribute ospf process-id [match {internal |
external 1 | external 2}]
Cisco ME 3800X and 3600X Switch Software Configuration Guide
34-12
Chapter 34 Configuring MPLS, MPLS VPN, MPLS OAM, and EoMPLS
Purpose
Enter global configuration mode.
Configure the BGP routing process with the AS number passed
to other BGP routers, and enter router configuration mode.
Define EGPG parameters for PE-to-CE routing sessions, and
enter VRF address-family configuration mode.
Note The default is off for auto-summary and synchronization
in the VRF address-family configuration mode.
(Optional) Redistribute VRF static routes into the VRF BGP
table.
(Optional) Redistribute directly connected networks into the
VRF BGP table.
Define an EBGP session between PE and CE routers.
Activate the advertisement of the IPv4 address family.
Return to privileged EXEC mode.
Verify BGP configuration. Display information about all BGP
IPv4 prefixes.
Display VPNv4 address information from the BGP table.
Display the IP routing table associated with a VRF instance.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Configure per-VRF OSPF.
Associate the interface with an OSPF area.
(Optional) Configure the OSPF router ID.
(Optional) Configure the OSPF domain ID.
Return to global configuration mode.
Redistribute MP-IBGP VPNv4 prefixes in OSPF.
Redistribute OSPF routes in MBGP.
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