Cisco 7604-RSP720C-R Configuration Manual page 282

Information About Layer 2 Protocol Tunneling
S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
Figure 9-4
In the preceding example, STP for a VLAN on a switch in Customer X, Site 1 will build a spanning tree
on the switches at that site without considering convergence parameters based on Customer X's switch
in Site 2.
Figure 9-5
enabled.
Figure 9-5
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
9-6
Layer 2 Protocol Tunneling
Customer X Site 1
VLANs 1 to 100
VLAN 30
VLAN 30
Switch A
Switch B
VLAN 40
Customer Y Site 1
VLANs 1 to 200
shows the resulting topology on the customer's network when BPDU tunneling is not
Virtual Network Topology Without BPDU Tunneling
Customer A
virtual network
VLANs 1 to 100
Chapter 9
Service
provider
Trunk
Trunk
ports
ports
Switch C
Switch D
Trunk
Trunk
ports ports
VLAN 40
Trunk
Asymmetric link
Configuring Q-in-Q VLAN Tunnels
Customer X Site 2
VLANs 1 to 100
VLAN 30
Customer Y Site 2
VLANs 1 to 200
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