Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 2218)

Appendix B: Glossary
Software Reference for x310 Series Switches
B.28 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
Transit node
In EPSR , nodes other than the master node in the domain.
Transit node states are:
■ Idle - the state when EPSR is first configured, before the master node determines that
all links in the ring are up. In this state, both ports on the node are blocked for the data
VLAN. From this state, the node can move to Links Up or Links Down.
■ Links Up - the state when both the node’s ring ports are up and forwarding. From this
state, the node can move to Links Down.
■ Links Down - the state when one or both of the node’s ring ports are down. From this
state, the node can move to Preforwarding.
■ Pre-forwarding - the state when both ring ports are up, but one has only just come up
and is still blocked to prevent loops. From this state, the transit node can move to
Links Up if the master node blocks its secondary port, or to Links Down if another port
goes down.
For more information see “Ring Components and Operation” on page 57.2 .
Tri-authentication
Authentication commands enable you to specify three different types of device
authentication:
802.1X authentication, MAC authentication , and Web-authentication .
All three types can be configured to run simultaneously on a switch port. The
simultaneous configuration and authentication of all three types on a port is called tri-
authentication.
For a configuration example see “Tri-Authentication Configuration” on page 42.19 .
Trigger
A trigger is an ordered sequence of scripts that is executed when a certain event occurs.
Each trigger may reference multiple scripts and any
Script may be used by any trigger.
When an event activates a trigger, the trigger executes the scripts associated with it in
sequence. One script is executed completely before the next script begins.
See Dynamic Link Failover .
Type-Length-Value
See TLV .
U
Unicast
Two individual devices hold a conversation just between themselves.