Figure 9-3 – Cisco 15327 User Manual

Page 141

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9-7

Ethernet Card Software Feature and Configuration Guide, R7.2

Chapter 9 Configuring IEEE 802.1Q Tunneling and Layer 2 Protocol Tunneling

VLAN-Transparent and VLAN-Specific Services Configuration Example

Note

VLAN-transparent service is also referred to as Ethernet Wire Service (EWS). VLAN-specific service
is also referred to as QinQ tunneling trunk UNI in Metro Ethernet terminology.

A VLAN-specific service on a subinterface coexists with the VLAN-transparent service, often
IEEE 802.1Q tunneling, on a physical interface. VLANs configured for a VLAN-transparent service and
a VLAN-specific service follow the VLAN-specific service configuration. If you need to configure
802.1Q tunneling, configure this VLAN-transparent service in the normal manner, see the

“Configuring

IEEE 802.1Q Tunneling” section on page 9-4

A VLAN-specific service can be any service normally applicable to a VLAN. To configure an ERMS
VLAN-specific service, configure the service in the normal manner.

VLAN-Transparent and VLAN-Specific Services Configuration
Example

In this example, the Gigabit Ethernet interfaces 0 on both the ML-Series card A and ML-Series card C
are the trunk ports in an IEEE 802.1Q tunnel, a VLAN-transparent service. VLAN 10 is used for the
VLAN-transparent service, which would normally transport all customer VLANs on the ML-Series card
A’s Gigabit Ethernet interface 0. All unspecified VLANs and VLAN 1 would also be tunneled across
VLAN 10.

VLAN 30 is prevented from entering the VLAN-transparent service and is instead forwarded on a
specific-VLAN service, bridging Gigabit Ethernet interface 0 on ML-Series card A and Gigabit Ethernet
interface 0 on ML-Series card B.

Figure 9-3

is used as an example to performing configuration examples

9-3

9-4

, and

9-5

Figure 9-3

ERMS Example

Example 9-3

applies to ML-Series card A.

Example 9-3

ML-Series Card A Configuration