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20-12
Cisco 10000 Series Router Software Configuration Guide
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Chapter 20 Configuring L2 Virtual Private Networks
Configuration Tasks for L2VPN
Configuration Tasks for L2VPN
To configure L2VPN, you have to configure the following L2VPN features:
• Setting Up the Pseudowire—AToM Circuit, page 20-12
• Configuring ATM AAL5 SDU Support over MPLS, page 20-14
• Configuring ATM-to-ATM PVC Local Switching, page 20-14
• Configuring OAM Cell Emulation for ATM AAL5 SDU Support over MPLS, page 20-15
• Configuring Ethernet over MPLS, page 20-19
• IEEE 802.1Q Tunneling for AToM—QinQ, page 20-22
• Remote Ethernet Port Shutdown, page 20-25
• Configuring Frame Relay over MPLS, page 20-28
• Configuring Frame Relay-to-Frame Relay Local Switching, page 20-31
• Configuring HDLC and PPP over MPLS, page 20-36
• Estimating the Size of Packets Traveling Through the Core Network, page 20-37
• Setting Experimental Bits with AToM, page 20-38
• Configuring QoS Features, page 20-40
Setting Up the Pseudowire—AToM Circuit
The successful transmission of the Layer 2 frames between PE routers is due to the configuration of a
connection called a pseudowire between the routers. You specify the following information on each
PE
router:
• The type of Layer 2 data to be transported across the pseudowire, such as Ethernet, Frame Relay, or
ATM
• The IP address of the loopback interface of the peer PE router, which enables the PE routers to
communicate
• A unique combination of peer PE IP address and VC ID that identifies the pseudowire