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RFC 2474 — Definition of the differentiated services field (DS field) in the IPv4 and IPv6 headers. Note that the DS field of 8 bits (the bottom two unused) in [2] was later split into the current 6-bit DS field and a separate 2-bit ECN field. [3] RFC 2475 — An architecture for differentiated services. RFC 2597 — Assured forwarding PHB group.
Cisco IOS routers perform ECN marking if configured with the WRED queuing discipline since version 12.2(8)T. Linux routers perform ECN marking if configured with one of the RED or GRED queue disciplines with an explicit ecn parameter, by using the sfb discipline, by using the CoDel Fair Queuing (fq_codel) discipline, or the CAKE [27] queuing ...
The CTCP PING command works by sending an (often) integer argument (a timestamp) to a target client, the target client then responds by supplying exactly the same numerical parameter. The difference between the original timestamp and the current timestamp is calculated, with the result being displayed to the user that initiated the CTCP PING .
Queries the server to see if the clients in the space-separated list <nicknames> are currently on the network. [10] The server returns only the nicknames that are on the network in a space-separated list. If none of the clients are on the network the server returns an empty list. Defined in RFC 1459.
The Dynamic Host Configuration Protocol (DHCP) is a network management protocol used on Internet Protocol (IP) networks for automatically assigning IP addresses and other communication parameters to devices connected to the network using a client–server architecture.
The zero-width space can also be used to prevent automatic conversion of certain character combinations into emojis. Some systems will automatically convert symbols like :) into 🙂—inserting a zero-width space between the characters that make up the symbol will prevent the conversion and preserve the original characters. This can be useful ...
The type of service (ToS) field is the second byte of the IPv4 header. It has had various purposes over the years, and has been defined in different ways by five RFCs. [1] Prior to the redefinition, the ToS field could specify a datagram's priority and request a route for low-latency, high-throughput, or highly-reliable service.
Tools such as ping, traceroute, MTR and PathPing use this protocol to provide a visual representation of the path packets are taking, and to measure packet loss at each hop. [ b ] Many routers have status pages or logs, where the owner can find the number or percentage of packets dropped over a particular period.