Information Display; Important Considerations - 3Com 4007 Release Note

22 C 2: R
HAPTER ELEASE

Information Display

Important
Considerations
H
IGHLIGHTS
From the
ethernet monitoring
display of information.
Some fields, such as
fields, are repeated from the
convenience if you are troubleshooting.
However, there are three new fields:
„ monitorMode
monitoring mode
„ monitorStatus
Advanced Autonegotiation on the port. There are three possible
entries in this field:
— The port state has not been modified.
Normal
„
— The port has been forced into the full duplex state.
Advanced
„
Partitioned
„
"partitioned" also appears in the
and
summary
„ MonitorErrors
transitioned into the partitioned state.
The initial time period in which a port is partitioned (disabled) is 30
„
seconds. When the system reenables the port, it also immediately
monitors the error conditions. If the error threshold is reached again,
the port is partitioned again. The time that the port is partitioned
increases with each incidence, up to a maximum of 5 minutes.
The error thresholds are fixed in system software; they are not
„
user-configurable.
Partitioned ports are disabled at the link level. That is, both the PHY
„
and MAC components are shut down so that the switch no longer
forwards traffic to that port. This action is taken for the following
reasons:
It prevents a switch from being congested due to the condition
„
known as "head-of-line blocking"
It allows resilient link connections (see the
„
switchover and thus minimizes network disruption
The attached device may self-heal during renegotiation or reboot
„
menu, the
,
portNumber portLabel
ethernet detail
— Displays the current setting from the
option (
disabled, enabled,
— Indicates the status of Port Monitoring or
— The port is temporarily disabled. (The word
ethernet detail
– Indicates the number of times that the port has
option provides a
summary
, and various error counter
display for your
ethernet
or
advanced
field in the
portState
displays.)
bridge link
).
ethernet
menu) to