RPC, Portmapper binding

[Marcelo Barbosa Lima]

Hi all,

    RPC normal communication sequence is:

Client -----------------> POrtmapper
Portmapper -----------> Client
Client ----------------> Server
Server----------------> Client

All right !
Yes, but at one second client 's query:

 Client look for portmapper binding in its cache and (Do it look for
binding?)
client ------------> server
server-----------> client
   .
   :

  Cache expires
 client-------------> Portmapper
  portmapper---> Client
  Client-----------> server
   Server-------> client

Is it ok??????

What is it timeout of these bindings in client's cache, if 3 it is ok?
Sorry my poor english!
Regards,

                                                Marcelo
([e-mail]).