ZyXEL Communications IES-708-22A - Manual (Page 108)

Chapter 13 xDSL Port Setup
IES-708-22A User’s Guide
108
Use the Edit Static VLAN screen to configure a static VLAN on the IES-708-22A for voice
on the port.
Use the DSL Edit Port Channel Setup screen to:
• 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.
13.6.1 Super Channel
The IES-708-22A 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.
13.6.2 LLC
LLC is a type of encapsulation where one VC (Virtual Circuit) carries multiple protocols with
each packet header containing protocol identifying information. Despite the extra bandwidth
and processing overhead, this method may be advantageous if it is not practical to have a
separate VC for each carried protocol, for example, if charging heavily depends on the number
of simultaneous VCs.
13.6.3 VC Mux
VC Mux is a type of encapsulation where, by prior mutual agreement, each protocol is
assigned to a specific virtual circuit, for example, VC1 carries IP, VC2 carries IPX, and so on.
VC-based multiplexing may be dominant in environments where dynamic creation of large
numbers of ATM VCs is fast and economical.
13.6.4 Virtual Channel Profile
Virtual channel profiles allow you to configure the virtual channels efficiently. You can
configure all of the virtual channels with the same profile, thus removing the need to configure
the virtual channels one-by-one. You can also change an individual virtual channel by
assigning it a different profile.
The IES-708-22A provides two default virtual channel profiles: DEFVAL (for LLC
encapsulation) and DEFVAL_VC (for VC encapsulation). By default, all virtual channels are
associated to DEFVAL.
13.7 VC Setup Screen
Use this screen to view and configure a port’s channel (PVC) settings.
To open this screen, click Basic Setting > xDSL Port Setup > VC Setup.