trying to ping with mac os x terminal and not working

Ping helps ensure host availability through the echo request and echo reply ICMP message codes. It accomplishes this through the Internet Control Message Protocol (ICMP), a protocol within the Internet Protocol (IP) suite to manage operations rather than data transport. Pings are fundamental to network integrity, but the IP ping utility serves a fairly simple function: host lookup. If the ping doesn’t receive a response, the request times out, and the device that sent the ping gets an error message or notification of data loss. When the host that sent out the ping receives the pong, it can calculate the network latency, either by timing the rate of data transfer or by clocking the gap between the outbound ping transmission and the inbound pong transmission (much in the way a bat can gauge the distance of an object based on the reflection of its emitted sound waves). Upon receipt of the packet, the pinged device returns a response-called the “pong.” Transmitted over the network’s switch and router, the data packet arrives at the device with the specified address. The “ping”-a data packet-is sent out to an IP address. Ping, a program authored in 1983 by Mike Muuss, operates analogously to a sonar using echolocation. An admin can send a single ping to verify the status of an IP address, or they can execute a ping sweep, contacting a breadth of addresses (perhaps even all the addresses within a network) to get a holistic view of network device availability. A hallmark function in almost all PCs, ping helps ensure all devices with an IP address on the network are online-in other words, “pinging” certifies all devices are live, available, and performing networking operations at speed. Most network administrators are more than familiar with the ping utility. The ping utility is a basic but integral feature in network management-it monitors device availability, network latency, and packet loss within a network. Why You Should Invest in a Ping Monitor Tool I also make my case around the importance of using ping monitor software like Engineer’s Toolset ™ to enhance ping capabilities and help support your ability to provide reliable network performance. Pinging informs IT professionals about the state of their network: the availability status of all devices, latency rate of network requests, percentage of data packet loss, and more.įor this reason, it’s important to understand the history of ping and how the ping utility works.

Routinely conducting ping sweeps has a variety of benefits.

Trying to ping with mac os x terminal and not working