Local Switching: Quality Of Service; L2Tpv3 Pseudowire Switching - Cisco CRS Configuration Manual

Implementing Layer 2 Tunnel Protocol Version 3
VLAN-to-VLAN options do not require interworking.. If both interfaces are Ethernet VLAN, each reside
Note
on a single physical interface. By definition, local switching is not a pseudowire technology, because
signaling protocols (such as LDP or L2TPv3) are not involved.
Figure 26: Local Switching Operation

Local Switching: Quality of Service

The following quality of service (QoS) requirements apply to local switching:
• QoS service policies can be attached directly to the AC.
• QoS service policies can be attached to the main interface using match vlan on L2 VLAN ACs.
• QoS service policies attached to the main interface can be inherited by all L2 VLANs.
• QoS service policies cannot be attached to a main interface when there are service policies already
attached to its L3VLANs or L2VLAN ACs.
• QoS service policies already attached to the main interface are not permitted on L3 VLAN or L2 VLAN
ACs.

L2TPv3 Pseudowire Switching

L2VPN pseudowire switching allows you to:
• Extend L2VPN pseudowires across an Inter-AS boundary.
• Connect two or more contiguous pseudowire segments to form an end-to-end multihop pseudowire.
• Keep the IP addresses of the edge PE routers private across Inter-AS boundaries.
• Keep different administrative or provisioning domains to manage the end-to-end service.
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
L2TPv3 Features
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