Protocol used by IP hosts to report their multicast group memberships to a multicasting router.
International Mobile Subscriber Identity (IMSI)
A unique 64-bit identifier stored in the SIM card of a cell phone. The phone sends this device to the base station which forwards it on to the Home Location Register for identification and tracking.
Internet Protocol (IP)
The network layer protocol in the TCP/IP stack that offers connection-less networking through the use of packets that are forwarded based on address. IPv4 is defined in RFC 791 (1981).
Intrusion Prevention System (IPS)
An Intrusion Prevention System (IPS) is a security tool that actively monitors network activities to identify and block potential cyber threats. It analyzes incoming and outgoing traffic in real-time, taking immediate action when it detects suspicious behavior, such as blocking malicious traffic or alerting administrators. IPS plays a crucial role in enhancing network security by preventing unauthorized access and protecting against various cyber threats.
Integrated Services Digital Network (ISDN)
ISDN is a communications protocol that allows voice, data, video, and other source traffic to be carried over the existing publicly switched telephone network. It's usage for internet access has dropped down in favor of ADSL, Asymmetric Digital Subscriber Line.
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