[j-nsp] EX9200 / MX Minor Alarm - CB 0 Fabric Chip Not Online

[William McLendon]

hey all,

we have an EX9208 that is reporting a Minor alarm as follows:

user at hostname> show system alarms 
2 alarms currently active
Alarm time               Class  Description
2013-09-27 17:40:56 EDT  Minor  CB 0 Fabric Chip 1 Not Online
2013-09-27 17:40:56 EDT  Minor  CB 0 Fabric Chip 0 Not Online


My experience with EX9200s switch fabrics is fairly limited (they are new after all) but since it's more or less an MX480 chassis, SCB, and RE I was hoping some with more MX experience than I would have input to these messages.


RE0 is the master RE, but looking at the output and also the LCD's on the SCBs it would appear that SCB1 is the active SCB as opposed to SCB0.  The chassis has been up for 40+ days, however output of "show chassis fabric summary" (output below) reports 11+ days of uptime on the current fabric (SCB1 I suppose).


user at hostname> show chassis fabric summary 
Plane   State    Uptime
 0      Offline  
 1      Offline  
 2      Offline  
 3      Offline  
 4      Online   11 days, 21 hours, 39 minutes, 57 seconds
 5      Online   11 days, 21 hours, 39 minutes, 56 seconds
 6      Online   11 days, 21 hours, 39 minutes, 57 seconds
 7      Online   11 days, 21 hours, 39 minutes, 54 seconds
 Note:
 For FPC slots with MPC Type 4 or MCC:
   Fabric planes 1 and 5, 3 and 7 use shared physical links.
   Those slots may run in a reduced bandwidth in case both
   plane 1 and 5, or both 3 and 7 are active.


>From what I can tell service has not been impacted or anything, but curious if this is more cosmetic, or if I might have a failed / failing SCB that I need to get RMA'd, or what might have triggered an SCB switchover, but not RE switchover.  I intend to open a case with JTAC but was hoping the list might have some insight as well.


Thanks,


Will