- From: <wald@library.ho.lucent.com>
- Date: Mon, 8 Jan 2001 09:58:52 -0500 (EST)
- To: www-zig@w3.org
Coming out of the ZIG meeting decided it was time to propose this; that is make the init PDU optional. why: two reasons. 1. by far the main one is that it would allow a good quality Z39.50 session to be done in one round trip. THat is, a search PDU to the server, and a search response with piggy-backed results. Note this would closely resemble an HTTP search, but with a high quality search and retrieval specification. 2. the second reason is minor, and it is that it is not needed for many (all?) sessions - and is yet another hold on to "older"/OSI thinking. I believe by the way (but no assurances) that my server does not require an init - but certainly might break it. Note this change requires little or no change to the actual protocol - the one curious question is what a server that requires an init does when it receives a search PDU without an init? Choices I can think of are: 1. send an init failure PDU 2. send a search failure PDU 3. Be a good OSI implementation and shut down. 4. Or I sort of like: send a new generic failure PDU that replaces all failure PDUs. bob waldstein wald@lucent.com
Received on Monday, 8 January 2001 09:58:54 UTC