Microsoft Internet Security and
Acceleration Server 2000
The International Telecommunications Union - Telecommunications
(ITU-T) standard protocol for real-time multimedia communications
and conferencing over packet-based networks.
A mathematical algorithm used for routing client requests
within an array or a chain. The result of the hash determines which
specific ISA computer to send the client request.
In data packet communications, a specified number of bytes that
precedes the actual data being transmitted. It identifies control
information used to deliver, route, and process the data contents
of a packet.
The forwarding of a client HTTP request from one ISA computer
to another ISA computer upstream. The downstream (source) ISA
computer forwards client requests that it cannot service from its
own cache. Hierarchical caching uses upstream routing and is a
subset of distributed
Linking multiple ISA computers together to form a chain.
Individual ISA computers, arrays, or any combination can be
The percentage of client requests fulfilled through previously
cached data, in contrast to the total of all client requests that
have been processed by the caching service.
Hypertext Markup Language (HTML). A markup language derived
from the Standard Generalized Markup Language (SGML). Used to
create a text document with formatting specifications that tells a
software browser how to display the page or pages included in the
The client/server protocol used to access information on the
A Hypertext Transfer Protocol (HTTP) redirector filter provided
with ISA, that forwards HTTP requests from Firewall and secure
network address translation (SecureNAT) clients to the Web proxy