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OneX/TwinAx for VSS VSL on Sup-720

I have attempted to create the VSS VSL between two Sup-720-10GB using OneX modules in the sups and passive TwinAx.   This fails.  Neither switch detects a peer and the VSL remains down.   I have also attempted using 10GB-SR optics in the OneX modules and the VSL still stays down.   If I use X2 optics instead of the OneX it works fine.   

Does anyone know if the OneX modules are supported for VSS?   They work fine as uplinks from the 720s.   I have tested with 12.2(33)SXI12 and 15.1(2)SY1. 

Thanks!

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OneX/TwinAx for VSS VSL on Sup-720

I haven't come across 'OneX' before but I do not think it is supported. List of supported modules for the SUP720-10GB are listed here:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps9336/product_data_sheet0900aecd806ed759_ps708_Products_Data_Sheet.html

X2-10GB-LR

10GBASE-LR X2 Module

X2-10GB-SR

10GBASE-SR X2 Module

X2-10GB-ER

10GBASE-ER X2 Module

X2-10GB-LX4

10GBASE-LX4 X2 Module

X2-10GB-CX4

10GBASE-CX4 X2 Module

Hope this helps.

Please rate useful posts & remember to mark any solved questions as answered. Thank you.

Please rate useful posts & remember to mark any solved questions as answered. Thank you.

OneX/TwinAx for VSS VSL on Sup-720

Have you tried

service unsupported-transceiver

?

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