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Trap Selection
6-2 Trap Definitions
2. Drag down to Trap Selection... and release. The Repeater Trap Selection
window,
Figure 6-1 , will appear.
Figure 6-1. Repeater Trap Selection Window
Trap Definitions
You can enable or disable the following kinds of traps:
Link State Traps
Some Enterasys and Cabletron Ethernet repeater ports — including RJ45 twisted
pair and fiber optic ports — generate a link signal to monitor the status of their
connection with the device at the other end of the cable segment. If the cable is
removed or broken, the port’s link status goes to “No Link” and the repeater
generates a portLinkDown trap. When a port in a “No Link” condition receives a
link signal, the port goes to a “Link” condition and the repeater generates a
portLinkUp
trap. Devices at both ends of the disconnected or broken cable will
generate the portLinkDown and portLinkUp traps, even when only one end of
the cable has been removed.
Note that BNC (thin coax), AUI, and transceiver ports do not support a link
signal. BNC ports respond to changes in link status by generating
portSegmenting
and portUnsegmenting traps (see description, below); AUI and
transceiver ports do not respond at all to changes in link status (unless the port
has been segmented due to excessive collisions), and will always display as on,
even if no cable is connected.
Information included in a Link State trap will include the hub number and port
number associated with the trap.
At the repeater level, a check box indicates the
state of settings for all ports that are on the device.
The check box will be:
Checked — If all port trap settings are enabled for a
given trap.
Blank — if all port trap settings are disabled for a
given trap.
A Gray check box will also appear as you toggle a
trap between the enabled and disabled states. This
gray box simply serves to indicate a “No Change”
for the value. Leaving a trap state at its original
value OR leaving the gray “No Change” state will
both have the same effect; namely leaving the
current state set for the trap.