Specifications

LinkSwitch 1000 Application
Application Views 3Com LinkSwitch 1000/3000
5-20 Management Module Guide
Mode
Displays the mode of the TP link between a port and its endstation. If the
attribute is set to Full Duplex, frames are sent and received simultaneously
without generating collisions on the segment. If the attribute is set to Half
Duplex the normal rules of ethernet apply. Not all ports can support full
duplex mode, and an attempt to set such a port to Full Duplex will be rejected.
Possible values are Not Applicable, Half Duplex, Full Duplex, and Other.
IFM
This field controls the Intelligent Flow Management for the port. It specifies
what action a port takes whenever it is unable to receive a packet because its
buffers are full.
If this field is set to Off, the packet is dropped and no jam signal is
transmitted. If the field is set to any of the values between Max Jams 6 and
Max Jams 13, a jam signal is applied to the segment attached to this port in
order to back off the transmitting station. This will be repeated a maximum of
6 to 13 times depending on the setting. If the port is then still unable to
receive the packet, it is dropped.
Intelligent Flow Management should be disabled on ports which are
connected to repeated segments.
Possible values are: Not Applicable, Off, Max Jams 6, Max Jams 7,
Max Jams 8, Max Jams 9, Max Jams 10, Max Jams 11, Max Jams 12, and
Max Jams 13.
Discard on TX
This field shows if the Discard-on-Transmit feature is on for frames coming
from this port and going to any of the other ports on a LinkSwitch unit. If this
field is set to On, the unit will discard frames destined for another port on a
LinkSwitch unit, even if the receiving port's buffer is full. If this field is set to
Off, frames will not be forwarded to another port until the buffer has space
available.
Possible values are Not Applicable, Off, and ON.
In addition to the Port Configuration Table, this view contains the following
buttons and fields:
Accesses the LinkSwitch 1000 VLAN Config view.
Accesses the LinkSwitch 1000 Unit Configuration view.
Accesses the LinkSwitch 1000 Database view.
VLAN Table
Config Table
Database Table