Chapter 1 Product Overview
Front Panel Description
Table
Table | Meaning of Switch LED Colors in Different Modes | ||
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Port Mode |
| Port LED Color | Meaning |
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STAT |
| Off | No link, or port was administratively shut down. |
(port status) |
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| Green | Link present. | |
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| Blinking green | Activity. Port is sending or receiving data. |
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| Alternating | Link fault. Error frames can affect connectivity, and errors such as |
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| excessive collisions, CRC errors, and alignment and jabber errors | |
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| are monitored for a |
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| Amber | Port is blocked by Spanning Tree Protocol (STP) and is not |
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| forwarding data. |
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| After a port is reconfigured, the port LED can remain amber for up |
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| to 30 seconds as STP checks the switch for possible loops. |
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| Blinking amber | Port is blocked by STP and is sending or receiving packets. |
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DUPLX |
| Off | Port is operating in half duplex. |
(duplex) |
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| Green | Port is operating in full duplex. | |
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SPEED |
| 10/100/1000 ports |
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| Off | Port is operating at 10 Mb/s. |
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| Green | Port is operating at 100 Mb/s. |
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| Blinking green | Port is operating at 1000 Mb/s. |
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| Off | Port is not operating. |
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| Blinking green | Port is operating at up to 10 Gbps. |
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STACK1 |
| Off | No stack member corresponding to that member number. |
(stack member) |
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| Blinking green | Stack member number. | |
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| Green | Member numbers of other stack member switches. |
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Catalyst
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