[rabbitmq-discuss] is there a maximum routing key length?

[E R]

I've tried searching for an answer to this to no avail.

Someone has told me that librabbitmq-c encodes the routing key length
in a single byte, so it appear that the maximum key length is 255 (or
256?)

Is this a limitation of the protocol being used? rabbitmq? the amqp spec?

Thanks,

ER