[CTX] [ALL]
max-cka:number [50]
max. number of requests to be relayed on a single connection in keep-alive. (ten times larger value is given to the first connection from each client host)
This is applied to the communication over a connection of SSLtunnel by the CONNECT method too. A pair of upstream and downstream data is regarded as a pair of request and response on HTTP, then the maximum number of such pairs is restricted.