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TrustSec L2 protocol issue?

Hello everyone

I have a strange issue with an encrypted trustsec connection between a c3750x and a c3560x.

Both have a service-module (C3KX-SM-10G) in place for the trustsec/macsec encryption.

The physical connection between both switches is stable and works without any problem.

As long as I don't activate the encryption, both switches can see each other also via cdp.

If I activate the manual trustsec connection, I still can ping the other end of the encrypted link but cdp doesn't work any more.

Are there any known issues about L2 protocols over TrustSec? CDP and STP should still work, right?

Kind regards

Michel

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