L2Tpv3 Benefits; L2Tpv3 Features - Cisco CRS Configuration Manual

Implementing Layer 2 Tunnel Protocol Version 3

L2TPv3 Benefits

L2TPv3 provides the following benefits:
• Simplifies deployment of VPNs—L2TPv3 is an industry-standard L2 tunneling protocol that ensures
• Does not require MPLS—Service providers need not deploy MPLS in the core IP backbone to set up
• Supports L2 tunneling over IP for any payload—L2TPv3 provides enhancements to L2TP to support

L2TPv3 Features

L2TPv3 provides cross-connect support for Ethernet, and 802.1q (VLAN), Frame Relay, HDLC, and PPP,
and ATM using the sessions described in the following sections:
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L2TPv3 also supports:
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• Distributed switching
• L2TPv3 L2 fragmentation
• L2TPv3 control message hashing
• L2TPv3 control message rate limiting
• L2TPv3 digest secret graceful switchover
• Manual clearing of L2TPv3 tunnels
• L2TPv3 tunnel management
• Color aware policer on ethernet over L2TPv3
interoperability among vendors, increasing customer flexibility and service availability.
VPNs using L2TPv3 over the IP backbone; this will result in operational savings and increased revenue.
L2 tunneling of any payload over an IP core network. L2TPv3 defines the base L2TP protocol as being
separate from the L2 payload that is tunneled.
Static L2TPv3 Sessions
Dynamic L2TPv3 Sessions
Local Switching
Local Switching: Quality of Service
L2TPv3 Pseudowire Switching
L2TPv3 Pseudowire Manager
IP Packet Fragmentation
L2TPv3 Type of Service Marking
Keepalive
Maximum Transmission Unit Handling
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
L2TPv3 Benefits
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