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 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.
A news server uses NNTP protocol (Network News Transfer Protocol).
Ordinal status is asking the respondent to rank their responses. The ranking indicates the importance assigned by the participant.
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.
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.
Negative nitrogen balance