NEXUS 7K interworking with Infinera DWDM

[russell.sage]

I have two Nexus 7004 switch interconnected at 10G via an Infinera DWDM system (3rd Party)

Following four maintenance sessions (over last 6 months) on the 3rd Party DWDM system the link fails to re-establish at one end.

The interface shows not connected however, the transceiver shows good optical tx and rx levels.

Problem clears after the 3rd party applies and removes loops on their kit. May take multiple attempts.

Both ends have the same line card - N7K-F248XP-25E and same transceiver.

My question is what 

STFN7K1

interface Ethernet4/40
description connection to RTP-N7K2-STFN7K1 MON
link debounce time 5000
ip address 10.157.0.22/30
ip ospf hello-interval 1

ip router ospf 1 area 0.0.0.0
no shutdown

Transceiver details

Ethernet4/40
transceiver is present
type is 10Gbase-LR
name is CISCO-AVAGO
part number is SFCT-739SMZ
revision is G3.1
serial number is AVD2223K1A6
nominal bitrate is 10300 MBit/sec
Link length supported for 9/125um fiber is 10 km
cisco id is --
cisco extended id number is 4
cisco part number is 10-2457-02
cisco product id is SFP-10G-LR
cisco vendor id is V02
number of lanes 1

Ethernet4/40
transceiver is present
type is 10Gbase-LR
name is CISCO-AVAGO
part number is SFCT-739SMZ
revision is G3.1
serial number is AVD2223K1A0
nominal bitrate is 10300 MBit/sec
Link length supported for 9/125um fiber is 10 km
cisco id is --
cisco extended id number is 4
cisco part number is 10-2457-02
cisco product id is SFP-10G-LR
cisco vendor id is V02
number of lanes 1

[marce1000]

 - Anything in the logs of the N7K when connection attempts are re-tried (show logging). 

 M.

[stevebarringer]

Did you ever find an answer to this? I am experiencing similar problems

[russell.sage]

Steve
Hi no I don't believe we did and the business was subsequently solved. The NK7 were also EoL and we were looking to replace them.