JRam: MPLS

EoMPLS is point to point L2 VPN services which is used to transport all Ethernet frame received on particular Ethernet or VLAN, its also called Any Transport over MPLS(ATOM) means this technology can connect like Frame-Relay, PPP, Ethernet,ATM etc.

IOS used
c7200-adventerprisek9-mz.151-4.M

Logical Topology

Make sure MPLS with IGP is confugure as shown in a diagram. I'm not going to configure MPLS here. This tutorial only show how to configure xconnect tunnel peer with other side customer faces interface in our network diagram we interconnect PE1 fa1/0 with PE2 fa0/0 interfaces.

Config of PE1

PE1#sh run
Building configuration...

Current configuration : 1337 bytes
!
upgrade fpd auto
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname PE1
!
ip cef

interface Loopback0
ip address 2.2.2.2 255.255.255.255
ip ospf network point-to-point
ip ospf 1 area 0
!
interface FastEthernet0/0
ip address 192.168.12.2 255.255.255.252
ip ospf 1 area 0
duplex half
mpls ip
!
interface FastEthernet1/0
no ip address
duplex auto
speed auto
xconnect 3.3.3.3 15 encapsulation mpls
!
router ospf 1

mpls ldp router-id Loopback0 force

======================================

PE1#sh mpls l2transport vc

Local intf     Local circuit              Dest address    VC ID      Status
------------- -------------------------- --------------- ---------- ----------
Fa1/0          Ethernet                   3.3.3.3         15         UP

PE1#sh mpls l2transport vc detail
Local interface: Fa1/0 up, line protocol up, Ethernet up
Destination address: 3.3.3.3, VC ID: 15, VC status: up

pc1

PC1> ping 10.10.10.11
84 bytes from 10.10.10.11 icmp_seq=1 ttl=64 time=39.002 ms
84 bytes from 10.10.10.11 icmp_seq=2 ttl=64 time=39.002 ms
84 bytes from 10.10.10.11 icmp_seq=3 ttl=64 time=39.002 ms
84 bytes from 10.10.10.11 icmp_seq=4 ttl=64 time=40.002 ms
84 bytes from 10.10.10.11 icmp_seq=5 ttl=64 time=31.001 ms

PC1> sh ip

NAME        : PC1[1]
IP/MASK     : 10.10.10.10/24
===============================================================

pc2
====
PC2> ping 10.10.10.10
84 bytes from 10.10.10.10 icmp_seq=1 ttl=64 time=40.002 ms
84 bytes from 10.10.10.10 icmp_seq=2 ttl=64 time=40.002 ms
84 bytes from 10.10.10.10 icmp_seq=3 ttl=64 time=41.002 ms
84 bytes from 10.10.10.10 icmp_seq=4 ttl=64 time=59.003 ms
84 bytes from 10.10.10.10 icmp_seq=5 ttl=64 time=41.003 ms

PC2> sh ip

NAME        : PC2[1]
IP/MASK     : 10.10.10.11/24

=================================================================

PE1#sh mpls ldp neighbor all
    Peer LDP Ident: 1.1.1.1:0; Local LDP Ident 2.2.2.2:0
        TCP connection: 1.1.1.1.646 - 2.2.2.2.47031
        State: Oper; Msgs sent/rcvd: 36/35; Downstream
        Up time: 00:24:20
        LDP discovery sources:
          FastEthernet0/0, Src IP addr: 192.168.12.1
        Addresses bound to peer LDP Ident:
          192.168.12.1    1.1.1.1         192.168.13.1
    Peer LDP Ident: 3.3.3.3:0; Local LDP Ident 2.2.2.2:0
        TCP connection: 3.3.3.3.61604 - 2.2.2.2.646
        State: Oper; Msgs sent/rcvd: 21/22; Downstream
        Up time: 00:11:25
        LDP discovery sources:
          Targeted Hello 2.2.2.2 -> 3.3.3.3, active, passive
        Addresses bound to peer LDP Ident:
          3.3.3.3         192.168.13.2

It's been a long time I'm away from blogging due to some R&D on the network with Juniper boxes. On this tutorial I'm going to configure very basic MPLS VPN configuration in GNS3. After that we go for EoMPLS configuration.

This is the logical topology for this tutorial.

Here I only post the configuration file from PE other router configuration is almost same. Here is the points should be remember.

1. Make sure IGP with MPLS is configure on PE,P, it shouldn't be configure on customer facing interface.

2. Make sure all loopback interface is reachable.

3. Configure VRF with RD and RT, then applied it on right interface.

4. Configure MP-BGP on PE and peer it.

5. Make sure to redistribute the CE IGP protocol into the BGP and vice versa.

Below command can be copy paste into your router. Before that make sure you had make change necessary things.

Config from PE1

PE1#sh run
Building configuration...

Current configuration : 2126 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname PE1
!
ip cef
ip tcp synwait-time 5
!
!
!
!
ip vrf CustA
rd 100:1
route-target export 1:100
route-target import 1:100
!
no ip domain lookup
!
interface Loopback0
ip address 2.2.2.2 255.255.255.255
ip ospf network point-to-point
ip ospf 1 area 0
!
interface FastEthernet0/0
ip address 192.168.11.2 255.255.255.252
ip ospf 1 area 0
duplex auto
speed auto
mpls ip
!
interface FastEthernet0/1
ip vrf forwarding CustA
ip address 192.168.13.1 255.255.255.252
duplex auto
speed auto
!
!
router eigrp 1
auto-summary
!
address-family ipv4 vrf CustA
redistribute bgp 1 metric 1500 2000 200 100 15000
network 192.168.13.0
no auto-summary
autonomous-system 100
exit-address-family
!
router ospf 1
log-adjacency-changes
!
router bgp 1
no synchronization
bgp log-neighbor-changes
neighbor 3.3.3.3 remote-as 1
neighbor 3.3.3.3 update-source Loopback0
no auto-summary
!
address-family vpnv4
neighbor 3.3.3.3 activate
neighbor 3.3.3.3 send-community both
exit-address-family
!
address-family ipv4 vrf CustA
redistribute eigrp 100
no auto-summary
no synchronization
exit-address-family

=============

CE1#ping 192.168.24.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.24.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/70/92 ms

CE1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     192.168.13.0/30 is subnetted, 1 subnets
C       192.168.13.0 is directly connected, FastEthernet0/1
     192.168.24.0/30 is subnetted, 1 subnets
D       192.168.24.0 [90/307200] via 192.168.13.1, 00:50:22, FastEthernet0/1

EoMPLS Configuration

Configuring a Basic MPLS VPN

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