Brocade Communications Systems VDX 8770-8 Installation Guide Page 61

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Management module LED descriptions (Continued)TABLE 9
LED purpose Color Status Recommended action
Status No light (LED is off) MM is either healthy or
does not have power.
Verify that the power LED
is on.
Steady amber MM requires attention or is
still booting up.
If the LED remains amber,
the module is faulty.
Consult your supplier.
Active Steady blue Module is the active MM. No action required.
No light (LED is off) Module is booting up,
negotiating to be the active
MM, or is the standby MM.
No action required.
Ethernet management link
(upper left)
Steady green Ethernet link speed is
1000 Mbps (1 Gbps).
No action required.
No light (LED is off) There is no link or link
speed is 10 or 100 Mbps.
No action required.
Ethernet management link
activity (upper right)
Blinking green Ethernet link is healthy and
traffic is flowing through
port.
No action required.
No light (LED is off) No traffic is flowing. No action required.
Determining the status of a switch fabric module
At least one functional switch fabric module (SFM) must be plugged into slots S3 or S4 (the "control
plane slots"). If there are no functional switch fabric module s in either slot during bootup, bootup is
halted with a message indicating that condition.
In an operational chassis, if all switch fabric module s in the control plane slots become faulty or are
removed, then all the line cards will be faulted with a reason code that indicates no availability of a
switch fabric module . An external RASlog message will also be displayed.
Complete the following steps to determine the status of a switch fabric module .
1. Locate the LED indicators on the switch fabric module (refer to Locating the LED indicators on the
switch fabric module on page 61). The LED patterns may temporarily change during POST and
other diagnostic tests. For information about how to interpret the LED patterns, refer to Interpreting
the switch fabric module LED indicators on page 62.
2. Use the show sfm command or the show slots command to see whether the switch fabric module is
enabled.
Locating the LED indicators on the switch fabric module
Use the following illustration to identify the LEDs on the switch fabric module.
Determining the status of a switch fabric module
Brocade VDX 8770-8 Hardware Installation Guide 61
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