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Example: Configuring CCC over Aggregated Ethernet

See the topology in Figure 1. In this topology, CE Routers A and C have aggregated Ethernet connections to PE Router B. With CCC, you specify that the circuit from Router A is connected to the circuit from Router C. Router B functions as a cross-connect switch between the two circuits. For a back-to-back connection, all VLAN IDs must be the same on Router A through Router C. You configure Router A and Router C as standard aggregated Ethernet interfaces. For more information about aggregated Ethernet, see Aggregated Ethernet Interfaces Overview.

Figure 1: Interface-to-Interface Circuit Cross-Connect over Aggregated Ethernet Interfaces

Image g017014.gif

On Router A

[edit interfaces]ae0 {vlan-tagging;aggregated-ether-options {minimum-links 1;link-speed 1g;}unit 0 {vlan-id 600;family inet {address 192.168.1.1/30;}}}

On Router B

[edit interfaces]ae0 {encapsulation vlan-ccc;vlan-tagging;aggregated-ether-options {minimum-links 1;link-speed 1g;}unit 0 { # CCC switchencapsulation vlan-ccc;vlan-id 600;family ccc;}ae1 {encapsulation vlan-ccc;vlan-tagging;aggregated-ether-options {minimum-links 1;link-speed 100m;}unit 0 {encapsulation vlan-ccc;vlan-id 600;family ccc;}}[edit protocols]mpls {interface all;}connections {interface-switch layer2-cross-connect {interface ae0.0;interface ae1.0;}}

On Router C

[edit interfaces]ae1 {vlan-tagging;aggregated-ether-options {minimum-links 1;link-speed 1g;}unit 0 {vlan-id 600;family inet {address 192.168.1.2/30;}}}

Published: 2010-04-20

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