Cisco WS-C3560E48PDSF-RF Installation Guide - Page 41
Port Mode, LED Color, Meaning, Mode LED, Description, Table 1-7
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Chapter 1 Product Overview Front-Panel Description Table 1-6 Port Mode LEDs (continued) Mode LED DUPLX SPEED LINE PWR Port Mode Port duplex mode Port speed Port inline power Description The port duplex mode: full duplex or half duplex. The port operating speed: 10, 100, or 1000 Mbps. The inline power status: on or off. Table 1-7 Meaning of LED Colors in Different Modes on the Catalyst 3508, 3512, 3524, and 3548 XL Switches Port Mode STATUS (port status) UTL (utilization) DUPLEX LED Color Off Solid green Flashing green Alternating green-amber Solid amber Green Off Green Meaning No link. Link present. Activity. Port is transmitting or receiving data. Link fault. Error frames can affect connectivity, and errors such as excessive collisions, CRC errors, and alignment and jabber errors are monitored for a link-fault indication. Port is not forwarding. Port was disabled by management or an address violation or was blocked by Spanning Tree Protocol (STP). Note After a port is reconfigured, the port LED can remain amber for up to 30 seconds as STP checks the switch for possible loops. The LEDs display backplane utilization on a logarithmic scale. If all port LEDs are green, the switch is using 50 percent or more of its total bandwidth capacity. If the right-most LED is amber, the switch is using less than 50 percent of its total bandwidth. If the LED to the left of the right-most LED is amber, the switch is using less than 25 percent of its total capacity, and so on. See Figure 1-13, Figure 1-15, and Figure 1-16 for details. Port is operating in half duplex. Port is operating in full duplex. 78-6456-04 Catalyst 3500 Series XL Hardware Installation Guide 1-17