User's Manual

Tsunami MP.11 2454-R, 5054-R, and 5054-R-LR Installation and Management
Chapter 5. Using the Web Interface 89
Access Mode
Access mode applies only to the SU. It is used when the devices behind the SU are VLAN unaware. Frames to
and from the Ethernet interface behind the SU map into only one VLAN segment.
Frames received on the Ethernet interface are tagged with the configured Access VLAN ID before forwarding
them to the WORP interface. Only management frames so tagged can access the device from the WORP
interface; however, untagged management frames can access the device from Ethernet Interface.
VLAN Forwarding
The VLAN Trunk mode provides a means to configure a list of VLAN IDs in a Trunk VLAN Table. The SU and
BSU only forward frames (between Ethernet and WORP interface) tagged with the VLAN IDs configured in the
Trunk VLAN Table. Up to 256 VLAN IDs can be configured for the BSU and up to 16 VLAN IDs can be
configured for the SU (depending upon the capabilities of your switching equipment).
VLAN Relaying
The VLAN Trunk mode for BSU operation provides an option to enable and disable a VLAN relaying flag; when
enabled, the BSU shall relay frames between SUs on the same BSU having the same VLAN ID.
Management VLAN
The BSU and SU allow the configuration of a separate VLAN ID and priority for SNMP, ICMP, Telnet, and TFTP
management frames for device access.
The management VLAN ID and management VLAN priority apply in both Trunk and Access mode. The
management stations tag the management frames they send to the BSU or SU with the management VLAN ID
configured in the device. The BSU and SU tag all the management frames from the device with the configured
management VLAN and priority.
• BSUs and SUs in Trunk mode let only management frames tagged with the configured management VLAN
ID access the device from both WORP and Ethernet interfaces.
• SUs in Access mode let management frames tagged with the configured management VLAN ID access the
device from WORP interface; untagged management frames can access the device from Ethernet Interface.
BSU in Transparent Mode
When the BSU is in Transparent mode, all associated SUs must be in Transparent mode.