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QSFP-H40G-CU3M unknown on C9500-48Y4C running 16.12.1

MARTIN THEINER
Beginner
Beginner

Hello,

I´m using a pair of two C9500-48Y4C running as a SV-cluster.

We are currently running on 16.12.1 and want to connet a N9K-C93180YC-FX3 using QSFP-H40G-CU3M cable.

As i can see from the Optics Compatibility Martrix, it should be supported in 16.12.1!

But our switch says: Transceiver unknown. And it is not shown in the "show inventory"

Any ideas what i can do to use this DAC-Cable?

 

br,

Martin

 

 

8 Replies 8

balaji.bandi
Hall of Fame
Hall of Fame

First thing are you using uplink Modules is there any other ports in the uplink connection

can you post show interface status (I am more looking at 100/40 ports information)

 

BB

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Hu1/0/49, Hu1/0/50, Hu2/0/49, Hu2/0/50 are configured as uplink in a Port-Channel 

Hu1/0/51, Hu1/0/52, Hu2/0/51, Hu2/0/52 is the Stackwise-Virtual-Ling

Hu1/0/49 NEXU_SW-Serv notconnect 1 auto auto unknown
Hu1/0/50 NEXU_SW-Serv connected trunk full 40G QSFP 40GE CSR-S
Hu1/0/51 connected 4094 full 40G QSFP 40GE CSR-S
Hu1/0/52 connected 4094 full 40G QSFP 40GE CSR-S

------

Hu2/0/49 NEXU_SW-Serv connected trunk full 40G QSFP 40GE CSR-S
Hu2/0/50 NEXU_SW-Serv notconnect 1 full 40G unknown
Hu2/0/51 connected 4094 full 40G QSFP 40GE CSR-S
Hu2/0/52 connected 4094 full 40G QSFP 40GE CSR-S

The DAC (QSFP-H40G-CU3M) should be supported since IOS XE 16.8.1

I think the upgrade to 16.12.8 will fix this issue... but the Transceiver-Compatibility-Matrix says, that my DAC sould be supported.

 

interface HundredGigE2/0/50
description NEXU_SW-Serv
switchport mode trunk
channel-group 49 mode active

MARTINTHEINER_0-1670879664166.pngMARTINTHEINER_1-1670879703401.png

 

i am sure the 16.12.X code has some bugs, advise you to upgrade to 17.6.4 and test it.

Are you still not sure contacting TAC is a good option?

BB

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17.6.X needs a complete reboot of the Stackwise-Virtual cluster.

Thats, why i first want to try the ISSU to 16.12.8, and i think, the first thing, that the TAC-engineer will say is.... please make the upgrade to 16.12.8

Sure you can try 16.12.8, but I see many bugs fixed in 17.6.4 recent my upgrade saw some improvements.

BB

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Leo Laohoo
Hall of Fame
Hall of Fame

Stop using 16.12.X.  Upgrade to 17.6.4.

hmm, that means, that i have to restart the whole BB-Stackwise-virtual at once....

Is there a way to keep the downtime shorter?

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