3Com 3C16630A User Manual page 70

3-42 C 3: U VT100 M I
HAPTER SING THE ANAGEMENT NTERFACE
The number of resilient links per stack must not exceed 16.
Resilience works by monitoring the fiber receive idle signal or the
10BASE-T link Test Pulse, to determine whether or not the main link is
operational. If a loss of link is detected, the main port is disabled and
the standby port becomes the active port.
If the main link becomes operational again, the management facility
does not automatically make the main port the active port. You can
achieve this manually by setting the Active Port field to Main.
The fields in the Port Resilience screen are:
Main Unit ID (Read-only) This field shows the identifier of the unit that
the main port belongs to.
Main Port ID (Read-only) This field shows the identifier of the main
port.
Media Type (Read-only) This field shows the media type for the main
port. Refer to Table 3-4 on page 3-37.
Link State (Read-only) This field shows the connection state of the
main port. Refer to Table 3-5 on page 3-39 for the different states.
Standby Unit ID (Text Field) This field shows the unit identifier of the
unit that the standby port belongs to. You can either enter the
identifier of the chosen standby unit, or select a standby unit and port
from the list box.
Standby Port ID (Text Field) This field shows the identifier of the
standby port. You can either enter the identifier of the chosen standby
port, or select a standby unit and port from the list box.
The standby port must be configured so that it is Disabled on Boot,
otherwise it will not be listed as a possible standby link. This means that
the Disable on Boot switch of the Hub 10 unit (see Figure 2-1 on
page 2-3) with the standby port must be set to 'Disable'. Refer to the
unit's user manual for instructions on how to set the switch.
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