Configuring Ieee 802.1Q Tunneling; Ieee 802.1Q Tunneling And Other Features; Configuring An Ieee 802.1Q Tunneling Port - Cisco ONS 15454 Software Feature And Configuration Manual

Configuring IEEE 802.1Q Tunneling

Configuring IEEE 802.1Q Tunneling
This section includes this information about configuring IEEE 802.1Q tunneling:
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By default, IEEE 802.1Q tunneling is not configured on the ML-Series.
Note

IEEE 802.1Q Tunneling and Other Features

Although IEEE 802.1Q tunneling works well for Layer 2 packet switching, there are incompatibilities
with some Layer 2 features and with Layer 3 switching.
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Configuring an IEEE 802.1Q Tunneling Port

Beginning in privileged EXEC mode, follow these steps to configure a port as an IEEE 802.1Q tunnel
port:
Command
Step 1
Router# configure terminal
Step 2
Router(config)# bridge bridge-number
protocol bridge-protocol
Step 3
Router(config)# interface fastEthernet
number
Cisco ONS 15454 SONET/SDH ML-Series Multilayer Ethernet Card Software Feature and Configuration Guide, R4.0
8-4
IEEE 802.1Q Tunneling and Other Features, page 8-4
Configuring an IEEE 802.1Q Tunneling Port, page 8-4
A tunnel port cannot be a routed port.
Tunnel ports do not support IP access control lists (ACLs).
Layer 3 quality of service (QoS) ACLs and other QoS features related to Layer 3 information are
not supported on tunnel ports. MAC-based QoS is supported on tunnel ports.
EtherChannel port groups are compatible with tunnel ports as long as the IEEE 802.1Q
configuration is consistent within an EtherChannel port group.
Port Aggregation Protocol (PAgP) and Unidirectional Link Detection (UDLD) Protocol are not
supported on IEEE 802.1Q tunnel ports.
Dynamic Trunking Protocol (DTP) is not compatible with IEEE 802.1Q tunneling because you must
manually configure asymmetric links with tunnel ports and trunk ports.
Loopback detection is supported on IEEE 802.1Q tunnel ports.
When a port is configured as an IEEE 802.1Q tunnel port, spanning tree bridge protocol data unit
(BPDU) filtering is automatically disabled on the interface.
Chapter 8 Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling
Purpose
Enters global configuration mode.
Creates a bridge number and specifies a protocol.
Enters the interface configuration mode and the interface to be
configured as a tunnel port. This should be the edge port in the
service-provider network that connects to the customer switch. Valid
interfaces include physical interfaces and port-channel logical
interfaces (port channels 1 to 64).
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