ZyXEL Communications SLC1224, Руководство пользователя

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SLC1224 User’s Guide
36 Chapter 3 G.SHDSL Port Setup
3.7 Virtual Channels
Defining virtual channels (also called Permanent Virtual Circuits or PVCs) allows you to set
priorities for different services or subscribers. You can define up to eight channels on each
DSL port and use them for different services or levels of service. You set the PVID that is
assigned to untagged frames received on each channel. You also set an IEEE 802.1p priority
for each of the PVIDs. In this way you can assign different priorities to different channels (and
consequently the services that get carried on them or the subscribers that use them).
For example, you want to give high priority to voice service on one of the DSL ports.
First configure a static VLAN on the SLC for voice on the port.
Then do the following:
• Configure a channel on the port for voice service.
• Set the channel to use the PVID of the static VLAN you configured.
• Assign the channel a high priority.
3.7.1 Super Channel
The SLC forwards frames belonging to VLAN groups that are not assigned to specific
channels to the super channel. Enable the super channel option to allow a channel forward
frames belonging to multiple VLAN groups (that are not assigned to other channels). The
super channel functions in the same way as the channel in a single channel environment. One
port can have only one super channel.
GVRP GVRP (GARP VLAN Registration Protocol) is a registration protocol that defines a
way for switches to register necessary VLAN members on ports across the
network. Select this check box to enable GVRP and propagate VLAN information
beyond the local IES.
VLAN Acceptable
Frame Type
This port accepts both tagged and untagged incoming packets.
Select
All if you want the port to accept both tagged and untagged incoming
frames (on this port). Choose Tag Only if you want the port to accept just tagged
incoming frames (on this port).
Apply Click Apply to save your changes back to the line card.
Reset Click Reset to begin configuring this screen afresh.
Table 8 SLC Edit Port Setup (continued)
LABEL DESCRIPTION