Chapter 20 VLAN Stacking
Table 46 IEEE 802.1Q Frame
(SP)TPID | (Service Provider) Tag Protocol IDentifier | Data | Frame data |
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VID | VLAN ID | FCS | Frame Check Sequence |
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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. |
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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 |
| list box or select Others and then enter a |
| 0xFFFF. 0x denotes a hexadecimal number. It does not have to be typed in the Others text |
| field. |
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Port | The port number identifies the port you are configuring. |
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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. |
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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. |
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