F5 Training Voucher.

I'm not an F5 employee, but I've had a little experience with training vouchers. I'm sure an F5 employee will eventually reply and give you concrete info, but for now I will share my experience.

First, I don't see how you could sell a voucher as they are logged on a specific customer account. I'm pretty sure when they say transferrable, they mean within your company at work, meaning it doesn't have to be you that goes to training, but anyone in your company that you designate.

Second, if what you mean by "trade" is being able to exchange LTM training for training in another module like ASM or APM, then yes, I have asked for that to be done in the past and provided the courses are of the same or shorter length as the one you were given a voucher for, there's no issue.

Hope this helps.