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IPmux-1/1E Installation and Operation Manual Chapter 1 Introduction

Functional Description 1-31

Rate + User Tagged Mode

Features:

• No network port learning

• User port learning is based on MAC

• TDMoIP® & manager traffic must be tagged.

Table 1-11. Rate+User Tagged Mode

Frame Action Switch Action

A tagged frame enters the network port Switched to user port without changing the

frame***

A tagged frame enters the user port

Both user and network ports are members of

frames’s VLAN

Switched to network port without changing the

frame*

Subject to rate limiting

Either the user or network port is not a

member of frames’s VLAN

Discarded

An untagged frame enters the network port Switched to user port without changing the

frame***

An untagged frame enters the user port** Discarded

* 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.

*** Learning is disabled; therefore, every frame is switched. The network port is

typically connected to another switch.

Note

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RAD Data comm IPmux-1E Spécifications Page 51