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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 & Managers 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.
Rate + User Untagged Mode
Features:
• Network port learning is based on MAC + VLAN number
• User port learning is based on MAC + VLAN number
• TDMoIP & Managers traffic must be tagged.
Note