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Configuring Switching Information
130
ProSafe M5300 Switch
Port DVLAN Configuration
Use this page to view and configure the double VLAN (DVLAN) tag settings for each
interface. Double VLAN tagging allows service providers to create Virtual Metropolitan Area
Networks (VMANs). With DVLAN tagging, service providers can pass VLAN traffic from one
customer domain to another through a metro core. By using an additional tag on the traffic,
the interface can differentiate between customers in the MAN while preserving an individual
customer's VLAN identification that is used when the traffic enters the customer's 802.1Q
domain.
To display the Port DVLAN Configuration page, click Switching
VLAN Advanced Port
DVLAN Configuration.
To configure a DVLAN settings:
1. Use the Global EtherType menu to select the 2-byte hex code to use as the first 16 bits
of the DVLAN tag. The value configured in this field is used as the primary Tag Protocol
Identifier (TPID) to include in frames transmitted by interfaces that are enabled for
DVLAN tagging. Select one of the following:
• 802.1Q Tag - Commonly used tag representing 0x8100
• vMAN Tag - Commonly used tag representing 0x88A8
• Custom Tag - Configure the EtherType in any range from 0 to 65535. If you select this
value, specify the tag in the Custom Value field that appears.
2. Select the check box associated with each Interface to configure, or select the check box in
the header row to apply the same settings to all interfaces.
3. Use Admin Mode to specify the administrative mode via which Double VLAN Tagging can
be enabled or disabled. The default value for this is Disabled.
4. Click APPLY to update the switch with the changes.
5. Click CANCEL to abandon the changes.