Cisco 7604 Configuration Manual page 709

GPRS tunneling protocol. GTP handles the flow of user packet data and signaling information
GTP
between the
of a
Gatekeeper Update Protocol.
GUP
H
A protocol used for TCP signalling in applications such as video conferencing. See also
H.225
inspection
An ITU standard that governs H.225.0 session establishment and packetization. H.225.0 actually
H.225.0
describes several different protocols: RAS, use of Q.931, and use of RTP.
An ITU standard that governs H.245 endpoint control.
H.245
Suite of ITU-T standard specifications for video conferencing over circuit-switched media, such as
H.320
ISDN, fractional T-1, and switched-56 lines. Extensions of ITU-T standard H.320 enable video
conferencing over LANs and other packet-switched networks, as well as video over the Internet.
Allows dissimilar communication devices to communicate with each other by using a standardized
H.323
communication protocol. H.323 defines a common set of CODECs, call setup and negotiating
procedures, and basic data transport methods.
Registration, admission, and status signaling protocol. Enables devices to perform registration,
H.323 RAS
admissions, bandwidth changes, and status and disengage procedures between
gatekeeper.
Call transfer supplementary service for H.323.
H.450.2
Call diversion supplementary service for H.323.
H.450.3
A hash algorithm is a one way function that operates on a message of arbitrary length to create a
Hash, Hash
fixed-length message digest used by cryptographic services to ensure its data integrity. MD5 has a
Algorithm
smaller digest and is considered to be slightly faster than SHA-1. Cisco uses both
hashes within our implementation of the
A firewall, concentrator, or other host that serves as the entry point into a private network for
headend
client connections over the public network. See also
A mechanism for message authentication using cryptographic hashes such as
HMAC
The name for any device on a TCP/IP network that has an IP address. See also
host
An IP address and netmask used with other information to identify a single host or network subnet for
host/network
FWSM configuration, such as an address translation (xlate) or ACE.
Hot Standby Routing Protocol. A Cisco-proprietary protocol, HSRP is a routing protocol that provides
HSRP
backup to a router in the event of failure.
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
OL-20748-01
SGSN and GGSN
GPRS network.
engine.
in a GPRS network. GTP is defined on both the Gn and Gp interfaces
IPSec framework. See also encryption, HMAC, and VPN.
ISP and VPN.
Glossary
H.323 and
VoIP gateway and the
SHA-1 and MD5
VPN
SHA-1 and MD5.
network and node.
GL-7