Cisco WS-C2916M-XL Manual de usuario descargar pdf (Pagina 11)

Introduction 1-11

Port Mode and Port Status LEDs

Table 1-5 Port Status LEDs by Mode

Figure 1-7 Catalyst 2900 Series XL Utilization Meter

Port Mode Color Meaning

STAT (port status) Off No link.

Solid green Link present.

Flashing green Activity; port is transmitting or receiving data.

Alternating

green-amber

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.

Solid amber Port is not forwarding. Port was disabled by management or an address

violation or blocked by Spanning-Tree Protocol (STP).

Note After a port is reconﬁgured, the port status LED can remain amber for

up to 30 seconds as STP checks the switch for possible loops.

UTL (utilization) Green The LEDs display backplane utilization on a logarithmic scale.

If all port status LEDs are green, the switch is using 50% or more of its total

bandwidth capacity. If the right-most LED is off, the switch is using less

than 50% of its total bandwidth. If the LED to the left of the right-most

LED is off, the switch is using less than 25% of its total capacity, and so on.

Figure 1-7 shows the utilization expressed by the right-most LEDs.

FDUP (full duplex Off Port is operating in half duplex.

Green Port is operating in full duplex.

100 (speed) Off Port is operating at 10 Mbps.

Green Port is operating at 100 Mbps.

15928

SYSTEM RPS

MODE

1x 2x 3x 4x 5x 6x 7x 8x 9x 10x 11x 12x

10BaseT/100BaseTx

6.25–12.4%+

12.5–24%+

25–49%+

50%+

SERIES

Catalyst 2900

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

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Cisco WS-C2916M-XL Manual de usuario Pagina 11