Cisco Catalyst 4500 Series Software Configuration Manual page 884

About Layer 2 Protocol Tunneling
Figure 30-6
Figure 30-7
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
30-14
Chapter 30
Layer 2 Protocol Tunneling
Customer A Site 1
VLANs 1 to 100
VLAN 30
VLAN 30
Switch 1
Switch 1
Switch 2
VLAN 40
Customer B Site 1
VLANs 1 to 200
Layer 2 Network Topology without Proper Convergence
Customer A
virtual network
VLANs 1 to 100
Configuring 802.1Q Tunneling, VLAN Mapping, and Layer 2 Protocol Tunneling
Service
provider
Trunk
Trunk
ports
ports
Trunk
Trunk
ports
ports
VLAN 40
Trunk
Asymmetric link
Customer A Site 2
VLANs 1 to 100
VLAN 30
Switch 3
Switch 4
Customer B Site 2
VLANs 1 to 200