• After restarting both Server_Room and 5th_Floor I could not get link between the switches to come up on 10G reducing speed to 1G brings the link up but produces a log CRC errors and the connection is drop once every 10-20 secs even when using 1G sftps
• Any fiber run that is dropping seems to have some sort of CRC errors
• run from Ag_Room to OLD_KSU giving CRC errors on OLD_KSU port 1:53 even after restarting both switches reconfigured both ports to 1G and CRC errors stopped
• After reconfiguring both ports back to 10G the CRC errors seemed to have stopped
• Run from server room to 5th floor stayed down after restarting both switches. Link did come up after reconfiguring both ports to 1G, both both 1:31 on server room switch and 1:54 on 5th floor switch had CRC errors
• As of 8pm on Friday all other switches showing 0 CRC errors
• Fibers in Ag_Room are transposed from the port descriptions.

• Over the night of the 12th of Jan EAPS master reporting <Info:EAPS.RxPduLinkDown> on Office and OLD_KSU switches
• reduced speed of Ag_room and OLD_KSU switches to 1G seeing if CRC errors are causing <Info:EAPS.RxPduLinkDown> on EAPS master
• Office switch is having port 1:54 lose connection every hour or so, even after multiple restarts
• Elementary_LD port 1:54 had no issues until about (over 12hrs) 7am on Jan 13th then started loosing uplink every 1-2 min over a 5-10min period. Started again at 10:30am
• Elementary_LD was restarted and port 1:54 resumed normal operation
• Switched Office to Elementary_LD and 5th_Floor to Server_Room over to using 1G sftp on the front of each switch and reconfigured EAPS ring to use different ports as of 12:01pm
• single mode fiber link between Elementary_LD to Business_AD_RM started dropping a lot reducing speed to 1G to see if that stops the dropping 12:20pm
• 12:25pm After reducing both links to 1G only one side would get a connection reverted to 10G and rebooted Elementary_LD and Business_AD_RM
• 4:30pm Pulling sftps off the ftp+ module seems to be fixing the issues. But still having issues between OLD_KSU to 5th_Floor planning on fixing moving link to front sftp ports
• It's starting to look like we have two bad ftp+ modules in 5th_Floor and Elementary_LD

• 10am moved other sftp from ftp+ module to front sftp ports on both 5th_Floor and OLD_KSU switches
• 3pm still getting about 1 drops/hr on OLD_KSU to Ag_Room link and 4-6 drops a hr on Elementary_LD to Business_AD all other links are staying up
• 6pm it looks like we have a bad ftp+ module in 5th_Floor, Elementary_LD and a failing module in OLD_KSU or Ag_Room

• 7:30am moved other sftp from ftp+ module to front sftp ports on both Ag_Room and OLD_KSU switches
• 8:30am link between Ag_Room and Business_AD started dropping
• 8:51am moved back to 10G sftp+ on OLD_KSU for Ag_Room link
• 9:00am moved other sftp from ftp+ module to front sftp ports on both Ag_Room and Business_AD
• 11:00am it looks like only one link is dropping: 1:54 on Elementary_LD
• 11:30am replaced 10G card in Elementary_LD
• 1:00pm only one drop at old KSU_ROOM at 12:35pm

show ports  1:53-1:54 configuration no-refresh
configure ports 1:53 auto off speed 1000 duplex full
show ports 1:53-1:54 congestion
show log | include "Received Link-Down-Pdu"
show log | include  <Info:vlan.msgs.portLinkStateDown>
show ports 1:53,1:54 rxerrors
show ports 1:31,2:31 rxerrors
show switch
show version

Slot-1 Office.1 # show eaps "seb-eaps" 

  Name: seb-eaps                          	Priority: Normal    
  State: Links-Down                     	Running: Yes
  Enabled: Yes	  Mode: Transit
  Primary port:   1:53  	Port status: Up	Tag status: Tagged
  Secondary port: 1:54  	Port status: Down	Tag status: Tagged

Slot-1 Elementary_Ed.1 # show eaps "seb-eaps" 

  Name: seb-eaps                          	Priority: Normal    
  State: Links-Down                     	Running: Yes
  Enabled: Yes	  Mode: Transit
  Primary port:   1:53  	Port status: Down	Tag status: Tagged
  Secondary port: 1:54  	Port status: Up	Tag status: Tagged

--- 10.1.1.77 ping statistics ---
3365 packets transmitted, 3328 received, +11 errors, 1% packet loss, time 3443267ms
rtt min/avg/max/mdev = 0.185/0.722/1024.694/17.753 ms, pipe 4

--- 10.1.3.14 ping statistics ---
3368 packets transmitted, 3333 received, +11 errors, 1% packet loss, time 3445370ms
rtt min/avg/max/mdev = 0.207/1.040/1016.357/17.592 ms, pipe 4

 show ports 1:53,1:54 rxerrors no-refresh
Port Rx Error Monitor
Port      Link     Rx      Rx      Rx        Rx      Rx         Rx         Rx
          State    Crc    Over    Under     Frag    Jabber      Align      Lost
================================================================================
1:53      A        0       0        0        0        0          0          0
1:54      A        0       0        0        0        0          0          0
================================================================================
          Link State: A-Active, R-Ready, NP-Port Not Present L-Loopback