User's Manual

Tsunami MP.11 2454-R, 5054-R, and 5054-R-LR Installation and Management
Chapter 5. Using the Web Interface 90
How the BSU and SUs function in Transparent mode is described in the following table.
BSU Function – Transparent Mode SU Function – Transparent Mode
• BSU forwards both tagged an untagged
frames received on the WORP interface or
on the Ethernet Interface.
• BSU lets both tagged and untagged
management frames access the device.
• SU forwards both tagged an untagged frames
received on either the WORP interface or on the
Ethernet Interface.
• SU lets both tagged and untagged management
frames access the device.
BSU in Trunk Mode
When the BSU is in Trunk mode, all associated SUs must be in either Access mode or Trunk mode. When an
SU associates to a BSU that is in Trunk mode, it gets the VLAN mode from the BSU.
How the BSU and SUs function in Trunk mode is described in the following table.
SU Function BSU Function
Trunk Mode
Trunk Mode Access Mode
• Up to 256 VLAN IDs can be
configured on a BSU
• The BSU discards all untagged
frames received from the
Ethernet interface or from any of
the associated SUs.
• The BSU forwards only
VLAN-tagged frames received
from the Ethernet interface, or
any of the associated SUs that
are tagged with the configured
VLAN IDs, and discards all other
tagged frames.
• The BSU allows only
management frames tagged with
the configured management
VLAN ID to access it.
• The BSU tags all management
frames generated by the BSU
with the configured management
VLAN ID and priority.
• Up to 16 VLAN IDs can be
configured on SUs.
• SUs discard all untagged frames
received from the Ethernet
interface or from the BSU
(unexpected).
• SUs forward only VLAN-tagged
frames received from the
Ethernet interface or from the
BSU that are tagged with the
configured VLAN IDs; it discards
all other tagged frames.
• SUs allow only management
frames tagged with the
configured management VLAN
ID to access them.
• SUs tag all management frames
generated by them with the
configured management VLAN
ID and priority.
• SUs discard all tagged frames
received from the Ethernet interface
(unexpected).
• SUs allow untagged management
frames to access the device from
the Ethernet interface .
• SUs tag all untagged frames
received from the Ethernet interface
with the configured Access VLAN ID
and forwards them to the BSU.
• SUs untag all tagged frames
received from the BSU that are
tagged with the configured Access
VLAN ID and forwards them to the
Ethernet interface, and discards all
other tagged frames from the BSU.
• SUs tag all management frames
generated by the SU with the
configured management VLAN ID
and priority.