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RIC-155 Installation and Operation Manual Appendix B Traffic Separation
Port-Based/VLAN-Based Traffic Separation B-3
Tagging Modes of the Bridge Ports
Each frame is routed according to its VID. If the frame is untagged, it receives tag
at egress from the uplink port.
Uplink and Host Ports
The uplink port operates in the following tagging modes:
• Unmodified – frames (tagged and untagged) are left unchanged.
• Tag – untagged frames are tagged and tagged frames are left unchanged.
• Stack – all frames (tagged and untagged) receive tags.
The host port of the internal bridge can be configured to add VLAN ID tags to the
frames.
Management and Data Ports
The management and data ports can strip the frame tags at egress or leave the
frames unchanged.
Default Tagging
Whenever the port access mode (None, MNG only or All) or forwarding mode of
the bridge (Filter or Filter Tagged) is changed, the tagging modes of the bridge
ports are set to one of the default tagging modes, as illustrated in Table B-1. This is
made to simplify the bridge configuration procedure for the most common
applications.
Table B-1. Default Tagging Modes
Forwarding Mode
Filter Tagged
Management Access Mode
Port
Filter
None MNG Only All Local MNG Only
MNG Tag stripping
disabled
Tag stripping
enabled
Tag stripping
enabled
Tag stripping
enabled
Tag stripping
enabled
Data Tag stripping
disabled
Tag stripping
enabled
Tag stripping
enabled
Tag stripping
disabled
Tag stripping
enabled
Host Tag stripping
enabled
Tag stripping
enabled
Tag stripping
enabled
Tag stripping
enabled
Tag stripping
enabled
Uplink Tag stripping
disabled
Stack Stack Tag Stack