Example: Configuring Ethernet CFM over VPLS
In this example, both the customer and service provider are
running Ethernet CFM over a VPLS and a multiprotocol label switching
(MPLS) network. The network is shown in Figure 1. The customer has configured Ethernet CFM on
MX Series routers L2-CE1 and L2-CE2. The service provider has configured
Ethernet CFM on MX Series routers PE1, P, and PE2.
 | Note:
The configurations in this example are only
partial examples of complete and functional router configurations.
Do not copy these configurations and use them directly on an actual
system. |
The service provider is using CFM level 5 and the customer is
using CFM level 7. The boundaries are marked with “up mep”
and “down mep” CFM terminology in the figure.
Figure 1: Ethernet OAM with VPLS
The following are the configurations of the VPLS and CFM on
the service provider routers.
Configuration of PE1
[edit chassis]fpc 5 {pic 0 {tunnel-services {bandwidth 1g;}}}[edit interfaces]ge-1/0/7 {encapsulation flexible-ethernet-services;vlan-tagging;unit 1 {encapsulation vlan-vpls;vlan-id 2000;}}ge-0/0/0 {unit 0 {family inet {address 10.200.1.1/24;}family mpls;}}lo0 {unit 0 {family inet {address 10.255.168.231/32 {primary;}address 127.0.0.1/32;}}}[edit routing-instances]vpls-vlan2000 {instance-type vpls;vlan-id 2000;interface ge-1/0/7.1;route-distinguisher 10.255.168.231:2000;vrf-target target:1000:1;protocols {vpls {site-range 10;site vlan2000-PE1 {site-identifier 2;}}}}[edit protocols]rsvp {interface ge-0/0/0.0;}mpls {label-switched-path PE1-to-PE2 {to 10.100.1.1;}interface ge-0/0/0.0;}bgp {group PE1-to-PE2 {type internal;local-address 10.200.1.1;family l2vpn {signaling;}local-as 65000;neighbor 10.100.1.1;}}ospf {traffic-engineering;reference-bandwidth 4g;area 0.0.0.0 {interface all;interface fxp0.0 {disable;}interface ge-0/0/0.0;}}oam {ethernet {connectivity-fault-management {maintenance-domain customer-site1 {level 5;maintenance-association customer-site1 {continuity-check {interval 1s;}mep 100 {interface ge-1/0/7.1;direction up;auto-discovery;}}}}}}
Configuration of PE2
[edit chassis]fpc 5 {pic 0 {tunnel-services {bandwidth 1g;}}}[edit interfaces]ge-5/0/9 {vlan-tagging;encapsulation flexible-ethernet-services;unit 1 {encapsulation vlan-vpls;vlan-id 2000;}}ge-5/2/7 {unit 0 {family inet {address 10.100.1.1/24;}family mpls;}}lo0 {unit 0 {family inet {address 10.255.168.230/32 {primary;}address 127.0.0.1/32;}}}[edit routing-instances]vpls-vlan2000 {instance-type vpls;vlan-id 2000;interface ge-5/0/9.1;route-distinguisher 10.255.168.230:2000;vrf-target target:1000:1;protocols {vpls {site-range 10;site vlan2000-PE2 {site-identifier 1;}}}}[edit protocols]rsvp {interface ge-5/2/7.0;}mpls {label-switched-path PE2-to-PE1 {to 10.200.1.1;}interface ge-5/2/7.0;}bgp {group PE2-to-PE1 {type internal;local-address 10.100.1.1;family l2vpn {signaling;}local-as 65000;neighbor 10.200.1.1;}}ospf {traffic-engineering;reference-bandwidth 4g;area 0.0.0.0 {interface all;interface fxp0.0 {disable;}interface ge-5/2/7.0;}}oam {ethernet {connectivity-fault-management {maintenance-domain customer-site1 {level 5;maintenance-association customer-site1 {continuity-check {interval 1s;}mep 200 {interface ge-5/0/9.1;direction up;auto-discovery;}}}}}}
Configuration of P router
MPLS only, no CFM needed:
[edit]interfaces {ge-5/2/7 {# Connected to PE1unit 0 {family inet {address 10.200.1.10/24;}family mpls;}}ge-0/1/0 {# Connected to PE2unit 0 {family inet {address 10.100.1.10/24;}family mpls;}}lo0 {unit 0{family inet {address 10.255.168.240/32;}}}}[edit]protocols {rsvp {interface ge-0/1/0.0;interface ge-5/2/7.0;}mpls {interface ge-0/1/0.0;interface ge-5/2/7.0;}ospf {traffic-engineering;reference-bandwidth 4g;area 0.0.0.0 {interface all;interface fxp0.0 {disable;}interface ge-0/1/0.0;interface ge-5/2/7.0;}}}
CFM on L2-CE1
Here is the configuration of CFM on L2-E1:
[edit interfaces]ge-5/2/3 {vlan-tagging;unit 0 {vlan-id 2000;}}[edit protocols oam]ethernet {connectivity-fault-management {maintenance-domain customer {level 7;maintenance-association customer-site1 {continuity-check {interval 1s;}mep 800 {interface ge-5/2/3.0;direction down;auto-discovery;}}}}}
CFM on L2-CE2
Here is the configuration of CFM L2-CE2:
[edit interfaces]ge-0/2/9 {vlan-tagging;unit 0 {vlan-id 2000;}}[edit protocols oam]ethernet {connectivity-fault-management {maintenance-domain customer {level 7;maintenance-association customer-site1 {continuity-check {interval 1s;}mep 700 {interface ge-0/2/9.0;direction down;auto-discovery;}}}}}
Published: 2011-11-03
