Инструкция для ZYXEL GS3700-48

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Chapter 21 VLAN Stacking

GS3700/XGS3700 Series User’s Guide

173

Figure 107

Advanced Application > VLAN Stacking

The following table describes the labels in this screen.

Table 80

Advanced Application > VLAN Stacking

LABEL

DESCRIPTION

Active

Select this checkbox to enable VLAN stacking on the Switch.

Port

The port number identifies the port you are configuring.

Settings in this row apply to all ports.

Use this row only if you want to make some settings the same for all ports. Use this row first to
set the common settings and then make adjustments on a port-by-port basis.

Note: Changes in this row are copied to all the ports as soon as you make them.

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 of the Port-based QinQ or the
Selective QinQ screen 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. Select Tunnel Port to have the Switch add the Tunnel TPID tag to all
outgoing frames sent on this port.

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.

Tunnel
TPID

TPID is a standard Ethernet type code identifying the frame and indicates whether the frame
carries IEEE 802.1Q tag information. Enter a four-digit hexadecimal number from 0000 to FFFF
that the Switch adds in the outer VLAN tag of the frames sent on the tunnel port(s). The Switch
also uses this to check if the received frames are double-tagged.

The value of this field is 0x8100 as defined in IEEE 802.1Q. If the Switch needs to communicate
with other vendors’ devices, they should use the same TPID.

Note: You can define up to four different tunnel TPIDs (including

8100

) in this screen at a time.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to save
your changes to the non-volatile memory when you are done configuring.

Cancel

Click Cancel to begin configuring this screen afresh.