Chapter 9 Configuring IEEE 802.1Q Tunneling and Layer 2 Protocol Tunneling on the ML-Series Card

Configuring IEEE 802.1Q Tunneling

Configuring IEEE 802.1Q Tunneling

This section includes the following information about configuring IEEE 802.1Q tunneling:

•IEEE 802.1Q Tunneling and Compatibility with Other Features, page 9-4

•Configuring an IEEE 802.1Q Tunneling Port, page 9-4

•IEEE 802.1Q Example, page 9-5

Note By default, IEEE 802.1Q tunneling is not configured on the ML-Series.

IEEE 802.1Q Tunneling and Compatibility with 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:

•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.

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

Purpose

Step 1

 

 

ML_Series# configure terminal

Enters global configuration mode.

Step 2

 

 

ML_Series(config)# bridge

Creates a bridge number and specifies a protocol.

 

bridge-number protocol bridge-protocol

 

Step 3

 

 

ML_Series(config)# interface

Enters the interface configuration mode and the interface to be

 

fastethernet number

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.

 

 

 

Cisco ONS 15310-CL, ONS 15310-MA, and ONS 15310-MA SDH Ethernet Card Software Feature and Configuration Guide, R9.1 and R9.2

9-4

78-19415-01

 

 

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Cisco Systems ONS 15310-MA Configuring Ieee 802.1Q Tunneling, Ieee 802.1Q Tunneling and Compatibility with Other Features
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ONS 15310-CL, ONS 15310-MA, Cisco ONS 15310-MA specifications

Cisco Systems has long been a leader in networking and telecommunications technology, and among its impressive lineup of products, the Cisco ONS 15310 series stands out as an essential solution for optical networking. This series includes models such as the ONS 15310-MA, ONS 15310-CL, and ONS 15310-CA, each designed to meet the diverse needs of service providers and enterprises seeking to enhance their optical transport networks.

The Cisco ONS 15310-MA is an advanced multi-service platform designed for metropolitan area networks. It facilitates the seamless transport of data, voice, and video over optical networks. One of its main features is its ability to support a variety of interfaces, including Ethernet, SONET/SDH, and Wavelength Division Multiplexing (WDM), allowing users to integrate multiple services into a single platform. Additionally, the ONS 15310-MA supports advanced traffic management and Quality of Service (QoS) features to prioritize critical applications and ensure consistent performance.

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One of the defining characteristics of the ONS 15310 series is its focus on scalability. Network operators can start with a modest deployment and gradually expand capacity as demand grows. This adaptability is complemented by Cisco's comprehensive management and monitoring tools, providing operators with real-time insights into network performance and facilitating proactive management.

In conclusion, the Cisco ONS 15310-MA and ONS 15310-CL models represent sophisticated solutions for modern optical networks. With their versatile features, advanced technologies, and robust design, they empower service providers and enterprises to build resilient, high-capacity networks that meet the demands of today’s data-driven world.
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