Specifications

Hub Application
Application Views 3Com LinkSwitch 1000/3000
5-14 Management Module Guide
Index
Displays the index number to the entry.
Address
Displays the network address of the device to monitor. Typically this is an IP,
IPX, or MAC address. You can update this field using the Poll Table Entry
view. The following formats can be used:
• IP:nnn.nnn.nnn.nnn - dotted format
• IPX:AABBCCDD:AABBCCDDEEFF - network:node
Protocol
Displays the protocol used to monitor the device. A default entry is made using
the format of the address in the Address field. You can update this field using
the Poll Table Entry view. Possible values are: Unknown, IP, IPX, Learn, and
LLC. If the protocol is not supported or not compatible with the Address
format, an error is returned when you try to set the Row Status field to Active
or NotInService.
Rate
Displays how often a poll packet is sent. You can update this field using the
Poll Table Entry view. Possible values are Once-Only, 30-Seconds, Minute,
5-Minutes, 30-Minutes, and Hour.
Once-Only is the default. When Row Status is set to Active for a Once-Only
poll just one poll is sent. There are no re-transmissions and no traps are
generated. The results are displayed in the Poll Sent and Trip Time fields.
When the reply is received the Row Status is changed to NotInService.
With all other Rate options, when the Row Status is set to Active, the device is
polled regularly. The results are displayed in the Poll Sent and Trip Time
fields. After four unsuccessful polls a Lost Contact trap is generated.
Unsuccessful polling is when the Trip Time is still zero when the next poll is
due to be sent. The next successful poll generates an Established Contact trap.
Changing the Row Status from Active stops the polling. Changing to
NotInService and back to Active is a convenient way of stopping and
restarting polls.
Target
This field is not used by the device, but describes the Target type as being
either a file server of another type of device. You can update this field.
Poll Sent
Displays the System Up Time at which the last poll was sent to the device. A
value of zero means that either no poll was sent or that it could not be sent.
Trip Time
Displays the round trip time of the most recent poll, in milliseconds. A value of
zero means that no reply was received. Times of less than 10 milliseconds are
shown as 10 milliseconds.