Monitoring Device Performance 2-13
Using the TSX-1620 Hub View
Yellow No Link — The interface’s operational status is returned as “UP”
and it has been administratively enabled, but no physical link
state to the port has been detected. This will not appear for
interfaces that do not support link state.
Blue Off — The interface is physically disabled (its operational status
is returned as “DOWN”), and it had also been administratively
disabled prior to entering the physically disabled state.
Red Off — The interface is physically disabled (its operational status
is returned as “DOWN”); however, prior to being physically
disabled, the port had been in an administratively enabled state.
(Magenta UNKnown — The interface cannot return the requested
information.
Gray (---) Unknown — The port’s ifOperStatus was not returned from the
device; the state of the port cannot been determined.
Bridge Port Display Form Options
Admin
Display’s the port’s current bridging status — FWD (forwarding), DIS (disabled),
LIS (listening), LRN (learning), BLK (blocking), BRK (broken), or UNK
(unknown). These bridge port status conditions are defined as follows:
• FWD (forwarding) when the interface is on-line and forwarding packets from
one network segment to another.
• DIS (disabled) when bridging at the interface has been disabled by
management, and no traffic can be received or forwarded on this interface.
• LIS (listening) when the interface is not adding information to the filtering
database. It is monitoring Bridge Protocol Data Unit (BPDU) traffic while
preparing to move to the forwarding state.
• LRN (learning) when the Forwarding database is being created, or the
Spanning Tree Algorithm is being executed because of a network topology
change.
• BLK (blocking) when the interface is on-line, but filtering traffic from going
across the TSX-1620 from one network segment to another.
• BRK (broken) when the physical interface has malfunctioned.
• UNK (unknown) if the interface’s status cannot be determined.
Tp Frames Forwarded
Displays the percentage of Transparent bridging frames that have been
transmitted to or received from the port’s attached segment that have been
forwarded to their destination.