Chapter 20 VLAN Stacking

Table 46 IEEE 802.1Q Frame

(SP)TPID

(Service Provider) Tag Protocol IDentifier

Data

Frame data

 

 

 

 

VID

VLAN ID

FCS

Frame Check Sequence

 

 

 

 

20.4 Configuring VLAN Stacking

Click Advanced Application and then VLAN Stacking in the navigation panel to display the screen as shown.

Figure 55 VLAN Stacking

The following table describes the labels in this screen.

Table 47

VLAN Stacking

LABEL

DESCRIPTION

Active

Select this checkbox to enable VLAN stacking on the switch.

 

 

SP TPID

SP TPID is a standard Ethernet type code identifying the frame and indicates whether the

 

frame carries IEEE 802.1Q tag information. Choose 0x8100 or 0x9100 from the drop-down

 

list box or select Others and then enter a four-digit hexadecimal number from 0x0000 to

 

0xFFFF. 0x denotes a hexadecimal number. It does not have to be typed in the Others text

 

field.

 

 

Port

The port number identifies the port you are configuring.

 

 

Role

Select Normal to have the switch ignore frames received (or transmitted) on this port with

 

VLAN stacking tags. Anything you configure in SPVID and Priority are ignored.

 

Select Access Port to have the switch add the SP TPID tag to all incoming frames

 

received on this port. Select Access Port for ingress ports at the edge of the service

 

provider's network.

 

Select Tunnel Port (available for Gigabit ports only) for egress ports at the edge of the

 

service provider's network.

 

In order to support VLAN stacking on a port, the port must be able to allow frames of 1526

 

Bytes (1522 Bytes + 4 Bytes for the second tag) to pass through it.

 

 

SPVID

SPVID is the service provider’s VLAN ID (the outer VLAN tag). Enter the service provider

 

ID (from 1 to 4094) for frames received on this port. See Chapter 7 on page 87 for more

 

background information on VLAN ID.

 

 

142

 

VES-1616F-3x Series User’s Guide