eng-mssk: MPLS L3VPN JC

Issue

In this example we will configure MPLS L3VPN between two sites but one of the PE routers will be Cisco and the other one will be Juniper

Static routing will be the PE-CE routing protocol and OSPF will be the operating IGP inside the MPLS backbone, area 0 is in use

MPLS backbone will be located in AS 100

Configuration

hostname R1

interface Loopback0

ip address 1.1.1.1 255.255.255.255

interface FastEthernet1/0

ip address 192.1.12.1 255.255.255.0

speed 100

duplex full

mpls ip

interface FastEthernet1/1

ip address 192.1.13.1 255.255.255.0

speed 100

duplex full

mpls ip

mpls label protocol ldp

mpls ldp router-id Loopback0 force

router ospf 1

router-id 1.1.1.1

network 1.1.1.1 0.0.0.0 area 0

network 192.1.12.1 0.0.0.0 area 0

network 192.1.13.1 0.0.0.0 area 0

hostname R2

vrf definition MSSK

rd 100:1

address-family ipv4

route-target export 100:1

route-target import 100:1

exit-address-family

interface Loopback0

ip address 2.2.2.2 255.255.255.255

interface FastEthernet1/0

ip address 192.1.12.2 255.255.255.0

speed 100

duplex full

mpls ip

interface FastEthernet1/1

vrf forwarding MSSK

ip address 192.1.24.2 255.255.255.0

speed 100

duplex full

mpls label protocol ldp

mpls ldp router-id Loopback0 force

router ospf 1

router-id 2.2.2.2

network 2.2.2.2 0.0.0.0 area 0

network 192.1.12.2 0.0.0.0 area 0

router bgp 100

bgp log-neighbor-changes

no bgp default ipv4-unicast

neighbor 3.3.3.3 remote-as 100

neighbor 3.3.3.3 update-source Loopback0

address-family ipv4

exit-address-family

address-family vpnv4

neighbor 3.3.3.3 activate

neighbor 3.3.3.3 send-community both

exit-address-family

address-family ipv4 vrf MSSK

network 192.1.24.0

redistribute static

exit-address-family

ip route vrf MSSK 4.4.4.4 255.255.255.255 192.1.24.4

set system host-name J3

set system root-authentication encrypted-password "$1$h0ePZfFF$eVHl3o9SK2FcwxcXgilfG0"

set interfaces em0 unit 0 family inet address 192.1.13.3/24

set interfaces em0 unit 0 family mpls

set interfaces em1 unit 0 family inet address 192.1.35.3/24

set interfaces lo0 unit 0 family inet address 3.3.3.3/32

set routing-options router-id 3.3.3.3

set routing-options autonomous-system 100

set protocols mpls icmp-tunneling

set protocols mpls no-decrement-ttl

set protocols mpls label-switched-path J3-To-R2 from 3.3.3.3

set protocols mpls label-switched-path J3-To-R2 to 2.2.2.2

set protocols mpls interface all

set protocols bgp group iBGP local-address 3.3.3.3

set protocols bgp group iBGP family inet unicast

set protocols bgp group iBGP family inet-vpn unicast

set protocols bgp group iBGP peer-as 100

set protocols bgp group iBGP neighbor 2.2.2.2

set protocols ospf area 0.0.0.0 interface lo0.0

set protocols ospf area 0.0.0.0 interface em0.0

set protocols ldp interface em0.0

set routing-instances MSSK instance-type vrf

set routing-instances MSSK interface em1.0

set routing-instances MSSK route-distinguisher 100:1

set routing-instances MSSK vrf-target target:100:1

set routing-instances MSSK vrf-table-label

set routing-instances MSSK routing-options static route 5.5.5.5/32 next-hop 192.1.35.5

hostname R4

interface Loopback0

ip address 4.4.4.4 255.255.255.255

interface FastEthernet1/0

ip address 192.1.24.4 255.255.255.0

speed 100

duplex full

ip route 0.0.0.0 0.0.0.0 192.1.24.2

hostname R5

interface Loopback0

ip address 5.5.5.5 255.255.255.255

interface FastEthernet0/0

no ip address

shutdown

duplex full

interface FastEthernet1/0

ip address 192.1.35.5 255.255.255.0

speed 100

duplex full

ip route 0.0.0.0 0.0.0.0 192.1.35.3

Verification

R1#show mpls ldp neighbor

Peer LDP Ident: 2.2.2.2:0; Local LDP Ident 1.1.1.1:0

TCP connection: 2.2.2.2.25776 - 1.1.1.1.646

State: Oper; Msgs sent/rcvd: 69/71; Downstream

Up time: 00:54:42

LDP discovery sources:

FastEthernet1/0, Src IP addr: 192.1.12.2

Addresses bound to peer LDP Ident:

192.1.12.2 2.2.2.2

Peer LDP Ident: 3.3.3.3:0; Local LDP Ident 1.1.1.1:0

TCP connection: 3.3.3.3.60299 - 1.1.1.1.646

State: Oper; Msgs sent/rcvd: 202/84; Downstream

Up time: 00:28:28

LDP discovery sources:

FastEthernet1/1, Src IP addr: 192.1.13.3

Addresses bound to peer LDP Ident:

192.1.13.3

R2#show mpls ldp neighbor

Peer LDP Ident: 1.1.1.1:0; Local LDP Ident 2.2.2.2:0

TCP connection: 1.1.1.1.646 - 2.2.2.2.25776

State: Oper; Msgs sent/rcvd: 71/70; Downstream

Up time: 00:54:55

LDP discovery sources:

FastEthernet1/0, Src IP addr: 192.1.12.1

Addresses bound to peer LDP Ident:

192.1.12.1 192.1.13.1 1.1.1.1

MSSK@J3# run show ldp neighbor

Address Interface Label space ID Hold time

192.1.13.1 em0.0 1.1.1.1:0 14

R2#show bgp vpnv4 unicast all summary

BGP router identifier 2.2.2.2, local AS number 100

BGP table version is 7, main routing table version 7

4 network entries using 624 bytes of memory

4 path entries using 320 bytes of memory

3/3 BGP path/bestpath attribute entries using 432 bytes of memory

1 BGP extended community entries using 24 bytes of memory

0 BGP route-map cache entries using 0 bytes of memory

0 BGP filter-list cache entries using 0 bytes of memory

BGP using 1400 total bytes of memory

BGP activity 4/0 prefixes, 4/0 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd

3.3.3.3 4 100 83 173 7 0 0 01:17:35 2

R2#show bgp vpnv4 unicast all

BGP table version is 7, local router ID is 2.2.2.2

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,

x best-external, a additional-path, c RIB-compressed,

Origin codes: i - IGP, e - EGP, ? - incomplete

RPKI validation codes: V valid, I invalid, N Not found

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 100:1 (default for vrf MSSK)

*> 4.4.4.4/32 192.1.24.4 0 32768 ?

*>i 5.5.5.5/32 3.3.3.3 100 0 i

*> 192.1.24.0 0.0.0.0 0 32768 i

*>i 192.1.35.0 3.3.3.3 100 0 i

R2#show bgp vpnv4 unicast all neighbors 3.3.3.3 advertised-routes

BGP table version is 7, local router ID is 2.2.2.2

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,

x best-external, a additional-path, c RIB-compressed,

Origin codes: i - IGP, e - EGP, ? - incomplete

RPKI validation codes: V valid, I invalid, N Not found

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 100:1 (default for vrf MSSK)

*> 4.4.4.4/32 192.1.24.4 0 32768 ?

*> 192.1.24.0 0.0.0.0 0 32768 i

Total number of prefixes 2

MSSK@J3# run show route advertising-protocol bgp 2.2.2.2

MSSK.inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)

Prefix Nexthop MED Lclpref AS path

* 5.5.5.5/32 Self 100 I

* 192.1.35.0/24 Self 100 I

mkhalil@J3# run show route receive-protocol bgp 2.2.2.2

inet.0: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)

inet.3: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden)

MSSK.inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)

Prefix Nexthop MED Lclpref AS path

* 4.4.4.4/32 2.2.2.2 0 100 ?

* 192.1.24.0/24 2.2.2.2 0 100 I

mpls.0: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)

bgp.l3vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)

Prefix Nexthop MED Lclpref AS path

100:1:4.4.4.4/32

* 2.2.2.2 0 100 ?

100:1:192.1.24.0/24

* 2.2.2.2 0 100 I

R4#sh ip route

Codes: L - local, 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, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is 192.1.24.2 to network 0.0.0.0

S* 0.0.0.0/0 [1/0] via 192.1.24.2

4.0.0.0/32 is subnetted, 1 subnets

C 4.4.4.4 is directly connected, Loopback0

192.1.24.0/24 is variably subnetted, 2 subnets, 2 masks

C 192.1.24.0/24 is directly connected, FastEthernet1/0

L 192.1.24.4/32 is directly connected, FastEthernet1/0

R5#sh ip route

Codes: L - local, 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, H - NHRP, l - LISP

+ - replicated route, % - next hop override

Gateway of last resort is 192.1.35.3 to network 0.0.0.0

S* 0.0.0.0/0 [1/0] via 192.1.35.3

5.0.0.0/32 is subnetted, 1 subnets

C 5.5.5.5 is directly connected, Loopback0

192.1.35.0/24 is variably subnetted, 2 subnets, 2 masks

C 192.1.35.0/24 is directly connected, FastEthernet1/0

L 192.1.35.5/32 is directly connected, FastEthernet1/0

R4#ping 5.5.5.5

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 5.5.5.5, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/20/52 ms

R4#traceroute 5.5.5.5 numeric source lo0

Type escape sequence to abort.

Tracing the route to 5.5.5.5

VRF info: (vrf in name/id, vrf out name/id)

1 192.1.24.2 8 msec 4 msec 4 msec

2 192.1.12.1 [MPLS: Labels 17/16 Exp 0] 16 msec 16 msec 8 msec

3 192.1.35.5 16 msec * 16 msec

R5#ping 4.4.4.4 source lo0

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds:

Packet sent with a source address of 5.5.5.5

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/24/52 ms

R5#traceroute 4.4.4.4 numeric source lo0

Type escape sequence to abort.

Tracing the route to 4.4.4.4

VRF info: (vrf in name/id, vrf out name/id)

1 192.1.35.3 8 msec 4 msec 4 msec

2 192.1.13.1 [MPLS: Labels 16/20 Exp 0] 20 msec 12 msec 12 msec

3 192.1.24.2 [MPLS: Label 20 Exp 0] 16 msec 16 msec 12 msec

4 192.1.24.4 20 msec * 20 msec

eng-mssk

Tuesday, August 20, 2013

MPLS L3VPN JC

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