Agilent Technologies 622Vu Advisor, Руководство пользователя

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which most of all of the components of a computer system are processing, storing, displaying,
or moving data at speeds exceeding 1 gigabit per second.”
GRC
Generic Reference Configuration.
GSMP
General Switching Management Protocol — A general-purpose protocol developed by
Ipsilon that’s used to control an ATM switch. GSMP allows a controller to establish and
release connections across the switch; to add and delete leaves on a point-to-point multi-point
connection; to manage switch ports; to request configuration information; and to request
statistics. During operation, GSMP sets up the connection between switches, establishes the
protocol used and the path (VCC) through which the switches will communicate, and then
passes control to IFMP to perform IP header compression (for TCP/IP cut-through switching).
header
5-byte cell header used by UNIs, NNIs, and ATM devices to route cell traffic. The cell
header is formatted differently depending on whether the cell is being passed by a user to a
UNI, or from one provider network to another (via an NNI). Each component of the header is
described separately in this glossary.
UNI cell header NNI cell header
HEC
Header Error Check — An 8-bit cell-header field that’s computed over the five bytes in the
cell header, using a CRC algorithm. The CRC polynomial (
x
8
+
x
2
+
x
+
1
) that computes the
HEC can correct a single bit error within individual ATM cells, and can also detect various
multiple-bit errors.
host
Any computer that provides, or can provide, services over a network to another computer,
other than simple data storage and forwarding (as with a file server).
IFMP
Ipsilon Flow Management Protocol. An IP switching protocol developed by Ipsilon that
handles compression of the IP header. Specifically, IFMP allows a node to instruct an
adjacent node to attach a Layer-2 label to a specified IP flow. The label allows more efficient
access to cached routing information for that flow. The label can also enable a node to switch
further packets belonging to the specified flow at Layer 2 rather than forwarding them at
Layer 3. 622Vu Advisor lets you identify specific VCCs that should always be interpreted
(i.e., decoded) as IFMP traffic, as detailed under Specifying Decode Preferences on page 100.
IISP
Interim Inter-Switch Protocol. An early, simplified version of the PNNI (Private Network-
to-Network Interface) switch-to-switch signalling protocol, still widely used. 622Vu Advisor
lets you identify specific VCCs that should always be interpreted (i.e., decoded) as IISP
traffic, as detailed under Specifying Decode Preferences on page 100.
Interim Inter-Switch Protocol See IISP.
Internet
A global internet connecting millions of computers (hosts) via the TCP/IP protocol suite.
There’s only one Internet (with an uppercase I) world-wide.
internet
Shortened form of internetwork — Any set of two or more networks that are connected
by a router, where communication between computers on different networks is facilitated by
consistent rules governing: 1) communications over the network — formatting, timing,
sequencing, etc. (known as a protocol), and 2) how to connect one type of network to another
A: Glossary
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