IPmux-1/1EInstallation and Operation Manual

Chapter 1 Introduction

 

 

User Untagged Mode

Features:

Network port learning is based on MAC+VLAN

User port learning is based on MAC+VLAN

TDMoIP & Managers traffic must be tagged.

Table 1-9. User Untagged Mode

Frame Action

Switch Action

 

 

 

 

 

A tagged frame enters the Network port

 

 

 

 

 

 

Both User and Network ports are members of

Switched to User port*, and the tag is removed

 

frame’s VLAN

 

 

 

 

 

 

Either the User or Network port is not a

Discarded

 

member of frame’s VLAN

 

 

 

 

 

 

A tagged frame enters the User port

 

 

 

 

 

 

Both User and Network port are members of

Switched to Network port without changing the

 

frame’s VLAN

frame*

 

 

 

 

 

Either the User or Network port is not a

Discarded

 

member of frame’s VLAN

 

 

 

 

 

 

An untagged frame enters the Network port (see

 

 

Note 2)

 

 

 

 

 

 

Both User and Network ports are members of

Switched to User port without changing the frame*

 

the Network port default VLAN

 

 

 

 

 

 

Either the User or Network port is not a

Discarded

 

member of the Network port default VLAN

 

 

 

 

 

 

An untagged frame enters the User port**

 

 

 

 

 

 

Both User and Network ports are members of

Switched to Network port*

 

the User port default VLAN

Default User port VLAN ID is added with

 

 

 

 

 

 

priority 0

 

 

 

 

 

Either the User or Network port is not a

Discarded

 

member of the User port default VLAN

 

 

 

 

 

 

 

 

 

 

Notes * The switch may decide not to pass the frame to the other port, based on its learning.

**A priority-tagged frame (frame with a tag and VLAN-ID 0) is treated just like an untagged frame. This includes rewriting the priority field with 0.

Functional Description

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Cisco Systems IPMUX-1E operation manual User Untagged Mode