4.1.b Implement and troubleshoot basic MPLS L3VPN

note: to find all the labs, select “lab” from categories, or click the “lab” tag in the tag cloud..

MPLS VPN Static Lab


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here is the dramatic finish:


ospf and ldp verification


this takes care of the vrf:

PE1#sh run | b vrf
ip vrf CE1
rd 100:1
route-target export 100:1
route-target import 100:1

interface FastEthernet0/0
ip vrf forwarding CE1
ip address

ip route vrf CE1

remember the CE’s have no knowledge of vrf; plain old ip route to the PE…

CE1#sh run | i ip route
ip route

verify the vrf:

PE1#ping vrf CE1 ip

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/22/52 ms


the bgp config:

PE1#sh run | sec bgp
router bgp 100
bgp log-neighbor-changes
neighbor remote-as 100
neighbor update-source Loopback0
 address-family vpnv4
neighbor activate
neighbor send-community both
address-family ipv4 vrf CE1
redistribute static

do the same for CE2, substituting the vrf, and the address-families with its valid parameters.