Cisco Systems IPMUX-1E operation manual User Tagged Mode

Chapter 1 Introduction IPmux-1/1EInstallation and Operation Manual

User Tagged 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 1-8. User Tagged Mode

Frame Action	Switch Action
A tagged frame enters the Network port
Both User and Network ports are members of	Switched to User port without changing the frame*
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*
the Network port default VLAN	Default Network port VLAN ID is added with
	priority 0
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.

1-28 Functional Description