Comtrend Corporation VG-8050, Руководство пользователя

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Appendix F - Connection Setup
Creating a WAN connection is a two-stage process.
1 - Setup a Layer 2 Interface (ATM, PTM or Ethernet).
2 - Add a WAN connection to the Layer 2 Interface.
The following sections describe each stage in turn.
F1 ~ Layer 2 Interfaces
Every layer2 interface operates in one of three modes: Default, VLAN Mux or MSC.
A short introduction to each of these three modes is included below for reference.
It is important to understand the differences between these connection modes, as
they determine the number and types of connections that may be configured.
DEFAULT MODE
In this mode there is a 1:1 relationship between interfaces and WAN connections, in
that an interface in default mode supports just one connection. However, unlike the
multiple connection modes described below, it supports all five connection types.
The figure below shows the connection type available in ETH default mode.
VLAN MUX MODE
This mode uses VLAN tags to allow for multiple connections over a single interface.
PPPoE, IPoE, and Bridge are supported while PPPoA and IPoA connections are not.
The figure below shows multiple connections over a single VLAN Mux interface.