How's the water mark being set? Can you provide any pointer to sites that contains these information. Thanks, Cham >-----Original Message----- >From: Statux [mailto:statux@bigfoot.com] >Sent: Friday, August 04, 2000 3:11 PM >To: Cham, LP >Cc: netdev@oss.sgi.com; linux-net >Subject: RE: TCP Management > > >> yes, when I am working on the application level, >> most of the TCP details are taken care of. > >Right. > >> But, I want to know the underlying architecture. >> That is, all these application message will be broken >> down into packets at the TCP layer. > >Right. > >> And, are there two separate buffers at that layer to handle >> incoming and outgoing packets? If the server continuously >> send packets to the client, does the client has a chance >> to send back the processed packet? > >There are two buffers: one for sending and one for receiving. > >> If not, outgoing packets must be kept in the buffer >> till he has a chance to be sent out. But, there must be >> limit as to how much the buffer can hold. Is this >> implementation at the kernel layer and does it varies >> between OS? > >There are limitations to every buffer. Different kernel implementations >and different operating systems are roughly the same thing, unless >something's been tweaked, etc. The TCP/IP defaults are defined by the >implementation and do often vary from OS to OS... but these >defaults can >usually be changed at runtime using different functions. High and Low >water marks for sending and receiving are changable. A book or >some other >TCP/IP info resource is helpful. I have my UNIX Network >Programming book >from W. Richard Stevens :) Very good book. > >> What I have seen from at the application layer is that >> all return response will ONLY be received until all >> requests have been sent. > >It depends on how it's implemented. If you're doing batch >work.. like send >everything.. then receive everything.. then you'll be stuck with what >you're describing, for example. > - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.rutgers.edu
