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In electrical and safety engineering, hazardous locations (HazLoc, pronounced haz·lōk) are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapors, dust, fibers, and flyings, which are combustible or flammable. Electrical equipment installed in such locations can provide an ignition source, due to ...
Network interface device. In telecommunications, a network interface device ( NID; also known by several other names) is a device that serves as the demarcation point between the carrier's local loop and the customer's premises wiring. Outdoor telephone NIDs also provide the subscriber with access to the station wiring and serve as a convenient ...
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
A Tier 1 network is an Internet Protocol (IP) network that can reach every other network on the Internet solely via settlement-free interconnection (also known as settlement-free peering ). [ 1][ 2] Tier 1 networks can exchange traffic with other Tier 1 networks without paying any fees for the exchange of traffic in either direction. [ 3]
Administrative distance ( AD) or route preference[ 1] is a number of arbitrary unit assigned to dynamic routes, static routes and directly-connected routes. The value is used in routers to rank routes from most preferred (low AD value) to least preferred (high AD value). [ 2][ 3] When multiple paths to the same destination are available in its ...
IP Payload Compression Protocol: RFC 3173: 0x6D 109 SNP Sitara Networks Protocol: 0x6E 110 Compaq-Peer Compaq Peer Protocol: 0x6F 111 IPX-in-IP IPX in IP: 0x70 112 VRRP Virtual Router Redundancy Protocol, Common Address Redundancy Protocol (not IANA assigned) RFC 5798: 0x71 113 PGM PGM Reliable Transport Protocol: RFC 3208: 0x72 114 Any 0-hop ...
IP code. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [ 1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical ...
v. t. e. Port Control Protocol ( PCP) is a computer networking protocol that allows hosts on IPv4 or IPv6 networks to control how the incoming IPv4 or IPv6 packets are translated and forwarded by an upstream router that performs network address translation (NAT) or packet filtering. By allowing hosts to create explicit port forwarding rules ...