From: Mike Taylor Date: Fri, 21 Apr 2006 17:08:12 +0000 (+0000) Subject: More on virt_db X-Git-Tag: METAPROXY.1.0.0~10 X-Git-Url: http://sru.miketaylor.org.uk/cgi-bin?a=commitdiff_plain;h=5e959bfd02cc35d0a411571cf68ca2886c5e217d;p=metaproxy-moved-to-github.git More on virt_db --- diff --git a/doc/book.xml b/doc/book.xml index d6e6f8d..acb3e58 100644 --- a/doc/book.xml +++ b/doc/book.xml @@ -1,4 +1,4 @@ - + Metaproxy - User's Guide and Reference @@ -653,7 +653,22 @@ search known only during the latter operation. - ### Much, much more to say! + In the general course of things, a Z39.50 Init request may carry + with it an otherInfo packet of type VAL_PROXY, + whose value indicates the address of a Z39.50 server to which the + ultimate connection is to be made. (This otherInfo packet is + supported by YAZ-based Z39.50 servers and clients, but has not yet + been ratified by the Maintenance Agency and so is not widely used + in non-Index Data software. We're working on it.) + The VAL_PROXY packet functions + analogously to the absoluteURI-style Request-URI used with the GET + method when a web browser asks a proxy to forward its request: see + the + Request-URI + section of + the HTTP 1.1 specification.