Connectivity Guide

• -M pmtudisc_option — (Optional) Enter the path MTU (PMTU) discovery strategy:
– do prevents fragmentation, including local.
– want performs PMTU discovery and fragments large packets locally.
– dont does not set the Don’t Fragment (DF) ag.
• -p pattern — (Optional) Enter a maximum of 16 pad bytes to ll out the packet you send to diagnose data-
related problems in the network; for example, -p ff lls the sent packet with all 1’s.
• -Q tos — (Optional) Enter a maximum of 1500 bytes in decimal or hex datagrams to set quality of service
(QoS)-related bits.
• -s packetsize — (Optional) Enter the number of data bytes to send, from 1 to 65468, default 56.
• -S sndbuf — (Optional) Set the sndbuf socket. By default, the sndbuf socket buers one packet maximum.
• -t ttl — (Optional) Enter the IPv4 time-to-live (TTL) value in seconds.
• -T timestamp option — (Optional) Set special IP timestamp options. Valid values for timestamp
option — tsonly (only timestamps), tsandaddr (timestamps and addresses), or tsprespec host1
[host2 [host3 [host4]]] (timestamp pre-specied hops).
• -v — (Optional) Verbose output.
• -V — (Optional) Display the version and exit.
• -w deadline — (Optional) Enter the time-out value in seconds before the ping exits regardless of how
many packets send or receive.
• -W timeout — (Optional) Enter the time to wait for a response in seconds. This setting aects the time-out
only if there is no response, otherwise ping waits for two round-trip times (RTTs).
• hop1 ... (Optional) Enter the IPv4 addresses of the pre-specied hops for the ping packet to take.
• target — Enter the IP address you are testing connectivity on.
Default
Not congured
Command Mode EXEC
Usage Information This command uses an ICMP ECHO_REQUEST datagram to receive an ICMP ECHO_RESPONSE from a network
host or gateway. Each ping packet has an IPv4 and ICMP header, then a time value and a number of ''pad'' bytes
used to ll out the packet. A ping operation sends a packet to a specied IP address and then measures the time it
takes to get a response from the address or device.
If the destination IP address is active, replies are sent back from the server including the IP address, number of
bytes sent, lapse time in milliseconds, and TTL, which is the number of hops back from the source to the
destination.
Example
OS10# ping 20.1.1.1
PING 20.1.1.1 (20.1.1.1) 56(84) bytes of data.
64 bytes from 20.1.1.1: icmp_seq=1 ttl=64 time=0.079 ms
64 bytes from 20.1.1.1: icmp_seq=2 ttl=64 time=0.081 ms
64 bytes from 20.1.1.1: icmp_seq=3 ttl=64 time=0.133 ms
64 bytes from 20.1.1.1: icmp_seq=4 ttl=64 time=0.124 ms
^C
--- 20.1.1.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2997ms
rtt min/avg/max/mdev = 0.079/0.104/0.133/0.025 ms
Supported Releases 10.2.0E or later
ping6
Tests network connectivity to an IPv6 device.
Syntax
ping6 [vrf {management | vrf-name}] [-aAbBdDfhLnOqrRUvV] [-c count] [-i
interval] [-I interface] [-l preload] [-m mark] [-M pmtudisc_option] [-N
Troubleshoot OS10 943