Magnum 6K32F/FR/FC/FRC Managed Switch Installation and User Guide (05/08)
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blocking) on Full-Duplex ports, which provides for a “PAUSE” packet to be transmitted
to the sender when the packet buffer is nearly filled and there is danger of lost packets.
The transmitting device is commanded to stop transmitting into the 6K32F’s Switch port
for sufficient time to let the Switch reduce the buffer space used. When the available
free-buffer queue increases, the Switch will send a “RESUME" packet to tell the
transmitter to start sending the packets. Of course, the transmitting device must also
support the 802.3x flow control standard in order to communicate properly during
normal operation.
Note: When in Half-Duplex mode, the 6K32F’s Switch implements a back-pressure
algorithm on 10/100 Mb ports for flow control. That is, the switch prevents frames from
entering the device by forcing a collision indication on the half-duplex ports that are
receiving. This temporary “collision” delay allows the available buffer space to improve
as the switch catches up with the traffic flow.
5.0
Magnum 6K32F Series Managed Switch Port Modules
This chapter describes each Port Module (PM), including appearance,
functionality, and status displays.
5.1
Inspecting the Package and Product
This section applies only to PMs shipped as separate items, i.e., 6K32F Series
PMs not factory installed in a Magnum 6K32F modular slot.
Examine the shipping container for obvious damage prior to
installing a 6K32F Series PM; notify the carrier of any damage you believe
occurred during shipment or delivery. Inspect the contents of this package for
any signs of damage and ensure that the items listed below are included.
This package should contain:
6K32F Series PMs
Installation instructions, with illustrations
Remove the 6K32F Series PM(s) from the shipping container. Be sure to keep
the shipping container should you need to ship any of the PMs separately at a
later date. In the event there are items missing or damaged, contact your
supplier. If you need to return the unit, use the original shipping container if
possible. Refer to Chapter 5 for specific return procedures.
5.2
6KPM Module Description
An important feature of the Magnum 6K32F Series is the use of one Port
Module for flexible mixed-media connectivity to RJ-45 and fiber media in the
