Chapter 10: Cabling the Networking Ports
232
Cabling Twisted Pair Ports
Here are the guidelines to cabling the twisted pair ports on the switches:
The minimum twisted pair cable requirements are as follows:
– 10/100Mbps ports: Standard TIA/EIA 568-B-compliant
Category 3 unshielded cabling.
– 1/2.5/5Gbps ports: Standard TIA/EIA 568-A-compliant
Category 5 or TIA/EIA 568-B-compliant Enhanced Category 5
(Cat 5e) unshielded cabling.
– 10Gbps ports: Standard TIA/EIA 568-C-compliant Category 6a
unshielded cabling.
PoE is enabled by default on the GS980MX/10HSm, GS980MX/
18HSm, GS980MX/28PSm and GS980MX/52PSm switch ports.
The connectors on the cables must fit snugly into the ports, and the
tabs must lock the connectors into place.
The default speed setting for the ports is Auto-Negotiation. This
setting is appropriate for ports connected to network devices that
also support Auto-Negotiation.
The ports must be set to the default setting of Auto-Negotiation to
operate at 1Gbps and higher.
The ports support full-duplex only when operating at 1Gbps and
higher. The ports support half- and full-duplex when operating at
10/100Mbps.
Do not attach cables to ports of static or Link Aggregation Control
Protocol (LACP) port trunks until after you configure the trunks on
the switch. Otherwise, the ports will form network loops that can
adversely affect network performance.
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