D-Link DGS-6600-48TS Configuration Guide - Page 598

Volume 12-Troubleshooting / Chapter 62-Testing Network Connectivity Chapter Overview Chapter 62 Testing Network Connectivity Chapter Overview The following topics are included in this chapter, please go to the topic for more detailed information: • Testing Connectivity to a Specific Destination • Tracing the Route to a Specific Destination Testing Connectivity to a Specific Destination The failure of a network can be caused by many scenarios. One of the most common causes is the failure of a node. Whenever a network problem is encountered, the problem can usually be isolated by using the ping command to test the availability of intermediate nodes located on the packet's routing path. The user can use the ping command to analyze the reliability of the routing path, the round trip delay time for test packets with different TOS fields, and whether packets of different lengths can be serviced. The following command is used to test the connectivity to a specific destination: Command ping [OPTIONS] {IP-ADDRESS | IPV6-ADDRESS} Explanation Invokes the echo protocol to ping a host. In the following example, the user invokes the echo protocol to ping a host with the IP address 10.1.1.254: DGS-6600:2>enable DGS-6600:15#ping 10.1.1.254 PING 10.1.1.254 (10.1.1.254) 56(84) bytes of data. 64 bytes from 10.1.1.254: icmp_seq=1 ttl=64 time=4.08 ms 64 bytes from 10.1.1.254: icmp_seq=2 ttl=64 time=1.37 ms 64 bytes from 10.1.1.254: icmp_seq=3 ttl=64 time=3.38 ms 64 bytes from 10.1.1.254: icmp_seq=4 ttl=64 time=21.3 ms 64 bytes from 10.1.1.254: icmp_seq=5 ttl=64 time=1.34 ms --- 10.1.1.254 ping statistics --packets transmitted = 5, received = 5, packet loss = 0 (0%) round trip times min/avg/max/mdev = 1.344/6.311/21.366/7.605 ms DGS-6600:15# DGS-6600 Configuration Guide 598