Connections To Nics Which Support Auto-Negotiation, Rj-45 Ports; Operation; Dual-Speed Functionality, And Switching The Pxes4P Series Switches Provide Four Switched Ports - Eaton Power Xpert PXES4P Series Installation And User Manual

PXES4P Switches
3.8.2

Connections to NICs which support Auto-Negotiation, RJ-45 ports

The copper ports of PXES4P Series Switches will function properly with NICs
(Network Interface Cards) which support Auto-Negotiation, and the Fast Link Pulse (FLP)
coding for the 100BASE-TX signaling system. When connecting a NIC to the PXES4P-
Sereis, it may be necessary to reload the NIC drivers on the user device if the NIC has been
communicating with a protocol other than 100BASE-TX (such as 10BASE-T). When
100Mb operation is agreed and in use, the 10/100 LED is illuminated steady ON and is
OFF, if 10 Mbps traffic.
PXES4P Switches
4.0

OPERATION

4.1 Dual-Speed Functionality, and Switching The PXES4P Series Switches provide
four switched ports (three ports in the front and one on the rear). The architecture supports
a dual speed switching environment, with auto-negotiation capability.
The switched RJ-45 ports are full-duplex and auto-sensing for speed. (See section
2.2). When the connected device is 10 Mbps, the PXES4P obeys all the rules of 10 Mbps
Ethernet configurations. The 10 Mbps users share a 10 Mbps traffic domain, and can
"communicate with" 100Mbps users as well as 100Mbps domain. Similarly, the 100Mbps
traffic obeys the rules of 100Mbps Ethernet, and can communicate with 10 Mb domain too.
PXES4P Series is plug-and-play device. There is no software configuring to be
done at installation or for maintenance. The internal functions of both are described below.
PXES4P Switches
Switching, Filtering and Forwarding
Each time a packet arrives on one of the switched ports, the decision is taken to either filter
or to forward the packet. Packets whose source and destination addresses on the same port
segment will be filtered, constraining them to one port and relieving the rest of the network
from processing them. A packet whose destination address is on another port segment will
be forwarded to the appropriate port, and will not be sent to the other ports where it is not
needed. Packets needed for maintaining the operation of the network (such as occasional
multi-cast packets) are forwarded to all ports.
The PXES4P Series Switches operate in the store-and-forward switching mode,
which eliminates bad packets and enables peak performance.
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