PING (Packet Internet Groper)

Routing

  • Some other Network Layer features which are related to IP Routing are DNS , ARP & PING.

  • Ping is a tool or application of IP Upper Layer Protocol Stack (Layer 1,2&3) used to get Network Layer/IP Layer/Layer 3 Status.

  • Ping sends ICMP (Internet Control Message Protocol) Echo packets using ICMP Echo Request to get Network Layer Status & the computer replies with the ICMP Echo Reply.

  • Ping is also used to check connectivity, calculate latency & verify drops.

  • Results of PING may not be relevant for Real Time Packets used over QOS enabled path.

Reference:

CCNA 200-301 OCG, Volume 1, Pg. 78 - Wendell Odom.

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