Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 237

Chapter 18 Connecting Cisco EtherSwitch Service Modules
Port LEDs
Each port has a port LED. These port LEDs, as a group or individually, display information about the
module and about the individual ports.
Table 18-7
EtherSwitch service module.
Table 18-8
modules.
Table 18-7 Port LEDs on the Cisco StackWise EtherSwitch Service Module
Port Mode
STAT
(default mode)
DUPLX
SPEED
STACK
OL-2485-20
explains how to interpret the port LED colors in different port modes on the Cisco StackWise
explains how to interpret the port LED colors for link status on the Cisco EtherSwitch service
Port LED
Color Meaning
Off No link, or the port was administratively shut down.
Green A link is present.
Flashing Activity is occurring. The port is transmitting or receiving data.
green
Alternating Link fault. Error frames can affect connectivity, and errors such as
green-amber excessive collisions, Cyclic Redundancy Check (CRC) errors, and
alignment and jabber errors are monitored for a link fault.
Amber The port is blocked by the Spanning-Tree Protocol (STP) and is not
forwarding data.
Note
Flashing The port is blocked by STP and is transmitting or receiving packets.
amber
Off The port is operating in half-duplex mode.
Green The port is operating in full-duplex mode.
10/100 and 10/100/1000 ports
Off The port is operating at 10 Mbps.
Green The port is operating at 100 Mbps.
Flashing The port is operating at 1000 Mbps.
green
SFP ports
Off The port is not operating.
Green The port is operating at 1000 Mbps.
Off No stack member corresponds to that member number.
Flashing Member number of the selected Cisco EtherSwitch service module.
green
Green Member number of other stack member Cisco EtherSwitch service
modules.
After a port is reconfigured, the port LED can remain amber
for up to 30 seconds while STP checks the Cisco StackWise
EtherSwitch service module for possible loops.
Cisco Network Modules Hardware Installation Guide
Cisco EtherSwitch Services Modules
18-11