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Table 10. CP blade LED descriptions (continued)
LED purpose Color Status
Recommended
Action
Ethernet Link Status No light (LED is off) Either an Ethernet
link is not detected,
or it does not have
incoming power.
Ensure that the blade
has power, the
Ethernet cable is
firmly seated, and
the connected device
is functioning.
Flickering
green/amber
Ethernet link is
healthy and traffic is
flowing through port.
No action required.
Ethernet Link Speed No light (LED is off) Ethernet link speed is
10 Mbps or CP blade
does not have
incoming power.
Ensure that the CP
has power.
Note: To force a
persistent Ethernet
link speed, type the
ifModeSet
command.
Steady green Ethernet link speed is
100/1000 Mbps.
No action required.
Active CP Steady blue Active CP blade. No action required.
No light (LED is off) Standby CP blade. No action required.
Core switch blade (CR4S-8) status
To determine the status of a CR4S-8 core switch blade:
1. Check the LED indicators on the core switch blade (Figure 27). The LED
patterns may temporarily change during POST and other diagnostic tests; for
information about how to interpret the LED patterns, see Table 11 on page 56.
2. Check core switch blade status by entering slotShow and haShow.
Figure 27 shows the CR4S-8 core switch blade and its components.
1 Status LED 4 ATTN LED
2 Power LED 5 ICL Connector
3 LINK LED
1
2
3
4
5
384b011
Figure 27. Core switch blade (CR4S-8)
Chapter 4. Monitoring system components 55