Cisco Catalyst 3120 Software Manual page 387

Catalyst blade switch for hp

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Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling

In an SP network, you can use Layer 2 protocol tunneling to enhance the creation of EtherChannels by

emulating a point-to-point network topology. When you enable protocol tunneling (PAgP or LACP) on

the SP switch, remote customer switches receive the PDUs and can negotiate the automatic creation of

EtherChannels.

Layer 2 Protocol Tunneling

Customer X Site 1

VLANs 1 to 100

Customer Y Site 1

VLANs 1 to 200

Layer 2 Network Topology without Proper Convergence

virtual network

VLANs 1 to 100

Asymmetric link

Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide

Understanding Layer 2 Protocol Tunneling

Customer X Site 2

VLANs 1 to 100

Customer Y Site 2

VLANs 1 to 200

Chapters

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