Users Guide

Supported
Releases
10.2.0E or later
ping
Tests network connectivity to an IPv4 device.
Syntax
ping [vrf {management | vrf-name}] [-4] [-aAbBdDfhLnOqrRUvV] [-c count] [-i
interval] [-I interface] [-m mark] [-M pmtudisc_option] [-l preload] [-p
pattern] [-Q tos] [-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp_option] [-
w deadline] [-W timeout] [hop1 ...] destination
Parameters
• vrf management — (Optional) Pings an IPv4 address in the management virtual routing and forwarding
(VRF) instance.
• vrf vrf-name — (Optional) Ping an IP address in a specified VRF instance.
• -4 — (Optional) Uses the IPv4 route over the IPv6 route when both IPv4 as well as IPv6 default routes are
configured, you must use the following option in the ping command: -4. For example, OS10# ping vrf
management -4 dell.com.
• -a — (Optional) Audible ping.
• -A — (Optional) Adaptive ping. An inter-packet interval adapts to the round-trip time so that one (or more, if
you set the preload option) unanswered probe is present in the network. The minimum interval is 200 msec for
a non-super user, which corresponds to Flood mode on a network with a low round-trip time.
• -b — (Optional) Pings a broadcast address.
• -B — (Optional) Does not allow ping to change the source address of probes. The source address is bound to
the address used when the ping starts.
• -c count — (Optional) Stops the ping after sending the specified number of ECHO_REQUEST packets
until the timeout expires.
• -d — (Optional) Sets the SO_DEBUG option on the socket being used.
• -D — (Optional) Prints the timestamp before each line.
• -h — (Optional) Displays help for this command.
• -i interval — (Optional) Enter the interval in seconds to wait between sending each packet, the default
is 1 second.
• -I interface-name or interface-ip-address — (Optional) Enter the source interface name
without spaces or the interface IP address:
• For a physical Ethernet interface, enter ethernetnode/slot/port; for example, ethernet1/1/1.
• For a VLAN interface, enter vlanvlan-id; for example, vlan10.
• For a Loopback interface, enter loopbackid; for example, loopback1.
• For a port-channel interface, enter port-channelchannel-id; for example, port-channel.
• -l preload — (Optional) Enter the number of packets that ping sends before waiting for a reply. Only a
super user may preload more than three.
• -L — (Optional) Suppress the Loopback of multicast packets for a multicast target address.
• -m mark — (Optional) Tags the packets sent to ping a remote device. Use this option with policy routing.
• -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) flag.
• -p pattern — (Optional) Enter a maximum of 16 pad bytes to fill out the packet you send to diagnose
data-related problems in the network; for example, -p ff fills 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 buffers one packet
maximum.
• -t ttl — (Optional) Enter the IPv4 time-to-live (TTL) value in seconds.
CLI Basics
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