it indicates which layer 4 protocol is carried in a datagram
sh int brief
Point-to-Point Protocol (PPP) is the most commonly used protocol for dial-up connections.
The DHCP protocol.
show ip protocol
The protocol part of a web address, commonly referred to as the scheme, indicates the method used for data transmission between the client and the server. It typically appears at the beginning of a URL, such as "http://" or "https://". The "http" stands for Hypertext Transfer Protocol, while "https" indicates a secure version of the protocol that encrypts data for safer communication. Other protocols like "ftp://" for file transfers can also be used in specific contexts.
A news server uses NNTP protocol (Network News Transfer Protocol).
The term "429 friendly" typically refers to a status code in the HTTP protocol, specifically "429 Too Many Requests." This status code indicates that the user has sent too many requests in a given amount of time. It is a way for servers to limit the number of requests from a single user to prevent overload or abuse of the system.
No. Protocol and domain name, or protocol and IP address make up a web address. Some addresses also include a port number.
Ports on Cisco routers can be enabled or disabled by the router OS. "Administratively Up" simply means that the port has been enabled by the router's OS. If a port is enabled (Administratively Up) and the protocol is down, then there is a problem with communications over that port. Problems could one of many including; bad cable on the port, the far end device is down, the protocol configurations on the two connected device ports are not configured correctly to enable communications.
No, ICMP is not a routing protocol. ICMP (Internet Control Message Protocol) is used by the Internet Protocol suite (IP) to send error and status messages. It is mainly used for diagnostics. Ping and traceroute are two tools that use ICMP. ICPM is used by routing protocols, for routing advertisements and router discovery.
ICMP The Internet Message Protocol (ICMP) allows hosts to exchange messages to indicate the status of a packet as it travels through the network.