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PXES4P Switches Installation and User Guide (10/06)
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Switching, Address Learning
The PXES4P Series units have address table capacity of 2K node addresses, and
are suitable for use in large networks. They are self-learning, so that as nodes are added or
changed, the PXES4P Series automatically keeps up with node locations.
An address-aging algorithm causes least-used addresses to fall out in favor of new
frequently-used addresses. To reset the address buffer, cycle power down-and-up.
4.2 Auto-cross (MDIX), Auto-negotiation and Speed-sensing
The RJ-45 ports support auto-cross (MDI or MDIX) in the auto-negotiation
mode according to the IEEE 802.3u standard. No crossover cables are needed when
connecting the PXES4P to other unmanaged switches, legacy hubs, managed switches,
media-converters etc. Please note that there can be conditions with managed switches
where the switch manager fixes the port settings via software, and the result of the
auto-negotiation is changed in the managed switch by the manager commands. In such