GE GE-DS-82, 82-POE user manual In-Q Tunnel Setting, Object

Chapter 4: Web-Based Management

This page includes the following fields:

OBJECT

QinQ

DESCRIPTION

Enable Sets the Managed Switch to QinQ mode, and allows the QinQ tunnel port to be configured.

Disable The Managed Switch operates in its normal VLAN mode.

The default is for the Managed Switch to function in Disable mode.

The Tag Protocol Identifier (TPID) specifies the ethertype of incoming packets on a tunnel access port.

QinQ TPID	•	802.1Q Tag : 8100
	•	vMAN Tag : 88A8
	Default : 802.1Q Tag.
	Check: Sets the Port to QinQ mode. Or the port operates in its normal
Port QinQ	VLAN mode.
	Default: Un-check.
	Check		Configures IEEE 802.1Q tunneling (QinQ) for an uplink
			port to another device within the service provider
QinQ Uplink			network.
	Cancel		Configures IEEE 802.1Q tunneling (QinQ) for a client

access port to segregate and preserve customer VLAN IDs for traffic crossing the service provider network.

Q-in-Q Tunnel Setting

Business customers of service providers often have specific requirements for VLAN IDs and the number of VLANs to be supported. The VLAN ranges required by different customers in the same service-provider network might overlap, and traffic of customers through the infrastructure might be mixed. Assigning a unique range of VLAN IDs to each customer would restrict customer configurations and could easily exceed the VLAN limit (4096) of the IEEE 802.1Q specification.

Using the QinQ feature, service providers can use a single VLAN to support customers who have multiple VLANs. Customer VLAN IDs are preserved, and traffic from different customers is segregated within the service-provider network, even when they appear to be in the same VLAN. Using QinQ expands VLAN space by using a VLAN-in-VLAN hierarchy and retagging the tagged packets. A port configured to support QinQ is called a QinQ user-port. A port configured to support QinQ Uplink is called a QinQ uplink-port.

78 GE-DS-82 and 82-PoE Ethernet Managed Switch User Manual