ping
Syntax
ping host <bypass-routing> <ce-ip destination-ip-address instance routing-instance-name source-ip source-ip-address> <count requests> <do-not-fragment> <inet | inet6> <interface source-interface> <interval seconds> <no-resolve> <pattern string> <rapid> <record-route> <routing-instance routing-instance-name> <logical-system logical-system-name> <tenant tenant-name> <size bytes> <source source-address> <tos type-of-service> <ttl value> <verbose> <wait seconds>
Syntax (QFX Series)
ping host <bypass-routing> <count requests> <detail> <do-not-fragment> <inet> <interface source-interface> <interval seconds> <logical-system logical-system-name> <loose-source value> <mac-address mac-address> <no-resolve> <pattern string> <rapid> <record-route> <routing-instance routing-instance-name> <size bytes> <source source-address> <strict> < strict-source value> <tos type-of-service> <ttl value> <verbose> <wait seconds>
Syntax (Junos OS Evolved)
ping host <bypass-routing> <ce-ip destination-ip-address instance routing-instance-name source-ip source-ip-address> <count requests> <do-not-fragment> <inet | inet6> <interface source-interface> <interval seconds> <no-resolve> <pattern string> <rapid> <record-route> <routing-instance routing-instance-name> <size bytes> <source source-address> <tos type-of-service> <ttl value> <verbose> <wait seconds>
Description
Check host reachability and network connectivity.
The ping command sends Internet Control Message Protocol
(ICMP) ECHO_REQUEST messages to elicit ICMP ECHO_RESPONSE messages
from the specified host. Press Ctrl+c to interrupt a ping command.
Options
| host | IP address or hostname of the remote system to ping. |
| bypass-routing | (Optional) Bypass the normal routing tables and send ping requests directly to a system on an attached network. If the system is not on a directly attached network, an error is returned. Use this option to ping a local system through an interface that has no route through it. |
| ce-ip destination-ip-address instance routing-instance-name source-ip source-ip-address | (MX Series
routers with MPC and MIC interfaces only) (Optional) Check the connectivity
information of customer edge (CE) devices, such as reachability, attachment
points, and MAC addresses, from a provider edge (PE) device in a virtual
private LAN service (VPLS), hierarchical VPLS (H-VPLS), and Ethernet
VPN (EVPN) network. The |
| destination-ip-address | IPv4 address of the CE device to ping. |
| instance routing-instance-name | Name of the VPLS or EVPN routing instance. The command output displays the connectivity information of the CE device based on the configured routing instance type. |
| source-ip source-ip-address | Loopback address of the PE device. |
| count requests | (Optional) Number of ping requests to send. The range
of values is |
| detail | (Optional) This option is not supported for Junos OS Evolved Release 18.3R1. Include in the output the interface on which the ping reply was received. |
| do-not-fragment | (Optional) Set the do-not-fragment (DF) flag in the IP header of the ping packets. For Junos OS Evolved Release 18.3R1, IPv6 For Junos OS IPv6 packets, this option disables fragmentation. Note:
In Junos OS Release 11.1 and later, when issuing the |
| inet | (Optional) Ping Packet Forwarding Engine IPv4 routes. |
| inet6 | (Optional) Ping Packet Forwarding Engine IPv6 routes. |
| interface source-interface | (Optional) Interface to use to send the ping requests. |
| interval seconds | (Optional) How often to send ping requests. The range
of values, in seconds, is |
| logical-system logical-system-name | (Optional) Name of logical system from which to send the ping requests. Alternatively, enter the |
| tenant tenant-name | (Optional) Name of tenant system from which to send the ping requests. |
| loose-source value | (Optional) Intermediate loose source route entry (IPv4). Open a set of values. |
| mac-address mac-address | (Optional) Ping the physical or hardware address of the remote system you are trying to reach. |
| no-resolve | (Optional) Do not attempt to determine the hostname that corresponds to the IP address. |
| pattern string | (Optional) Specify a hexadecimal fill pattern to include in the ping packet. |
| rapid | (Optional) Send
ping requests rapidly. The results are reported in a single message,
not in individual messages for each ping request. By default, five
ping requests are sent before the results are reported. To change
the number of requests, include the |
| record-route | (Optional) Record and report the packet’s path (IPv4). |
| routing-instance routing-instance-name | (Optional) Name of the routing instance
for the ping attempt. For Junos OS Evolved, the |
| size bytes | (Optional) Size of ping request packets. The range
of values, in bytes, is |
| source source-address | (Optional) IP address of the outgoing
interface. This address is sent in the IP source address field of
the ping request. If this option is not specified, the default address
is usually the loopback interface ( |
| strict | (Optional) Use the strict source route option (IPv4). |
| strict-source value | (Optional) Intermediate strict source route entry (IPv4). Open a set of values. |
| tos type-of-service | (Optional) Set the type-of-service (ToS) field in
the IP header of the ping packets. The range of values is If the device configuration
includes the |
| ttl value | (Optional) Time-to-live (TTL) value to include in the ping request
(IPv6). The range of values is |
| verbose | (Optional) Display detailed output. |
| vpls instance-name | (Optional) Ping the instance to which this VPLS belongs. |
| wait seconds | (Optional) Maximum wait time, in seconds, after the
final packet is sent. If this option is not specified, the default
delay is |
Required Privilege Level
network
Output Fields
When you enter this command, you are provided
feedback on the status of your request. An exclamation point (!) indicates that an echo reply was received. A period (.) indicates that an echo reply was not received within the
timeout period. An x indicates that an echo reply was
received with an error code. These packets are not counted in the
received packets count. They are accounted for separately.
When pinging a nonexistant
route, the display output of ping command does not print
the number of packets sent or received or the packet loss.
Sample Output
- ping ce-ip destination-ip-address instance routing-instance-name source-ip source-ip-address (EVPN)
- ping ce-ip destination-ip-address instance routing-instance-name source-ip source-ip-address (VPLS)
- ping hostname
- ping hostname rapid
- ping hostname size count
- ping hostname count size (No route to host)
ping ce-ip destination-ip-address instance routing-instance-name source-ip source-ip-address (EVPN)
user@host> ping ce-ip 10.0.0.4 instance foo source-ip 127.0.0.1 ! -> PE5|foo|evpn|ge-0/0/2.100, 00:11:22:33:44:55:66:77:88:99|12:23:ab:98:34:05 ! -> PE5|foo|evpn|ge-0/0/2.100, 00:11:22:33:44:55:66:77:88:99|12:23:ab:98:34:05 ! -> PE5|foo|evpn|ge-0/0/2.100, 00:11:22:33:44:55:66:77:88:99|12:23:ab:98:34:05 ! -> PE5|foo|evpn|ge-0/0/2.100, 00:11:22:33:44:55:66:77:88:99|12:23:ab:98:34:05 ! -> PE5|foo|evpn|ge-0/0/2.100, 00:11:22:33:44:55:66:77:88:99|12:23:ab:98:34:05 --- ce-ip ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss
ping ce-ip destination-ip-address instance routing-instance-name source-ip source-ip-address (VPLS)
user@host> ping ce-ip 10.0.0.4 instance foo source-ip 127.0.0.1 ! -> PE2|foo|vpls|ge-0/0/2.100|12:23:ab:98:34:02 ! -> PE2|foo|vpls|ge-0/0/2.100|12:23:ab:98:34:02 ! -> PE2|foo|vpls|ge-0/0/2.100|12:23:ab:98:34:02 ! -> PE2|foo|vpls|ge-0/0/2.100|12:23:ab:98:34:02 ! -> PE2|foo|vpls|ge-0/0/2.100|12:23:ab:98:34:02 --- ce-ip ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss
ping hostname
Output for Junos OS Evolved:
user@host> ping device1.example.com PING device1.example.com (192.0.2.0): 56(84) bytes of data. 64 bytes from 192.0.2.0: icmp_seq=1 ttl=64 time=44.7 ms 64 bytes from 192.0.2.0: icmp_seq=2 ttl=64 time=3.76 ms ^C --- device1.example.com ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 3.765/24.235/44.705/20.470 ms
Output for Junos OS:
user@host> ping device1.example.com PING device1.example.com (192.0.2.0): 56 data bytes 64 bytes from 192.0.2.0: icmp_seq=0 ttl=253 time=1.028 ms 64 bytes from 192.0.2.0: icmp_seq=1 ttl=253 time=1.053 ms 64 bytes from 192.0.2.0: icmp_seq=2 ttl=253 time=1.025 ms 64 bytes from 1192.0.2.0: icmp_seq=3 ttl=253 time=1.098 ms 64 bytes from 192.0.2.0: icmp_seq=4 ttl=253 time=1.032 ms 64 bytes from 192.0.2.0: icmp_seq=5 ttl=253 time=1.044 ms ^C --- device1.example.com ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.492/0.641/0.789/0.148 ms
ping hostname rapid
Output for Junos OS Evolved:
user@host> ping device1.example.com rapid PING device1.example.com (192.0.2.0): 56(84) bytes of data. .. --- device1.example.com ping statistics --- 5 packets transmitted, 3 received, 40% packet loss, time 505ms rtt min/avg/max/mdev = 0.026/0.081/0.137/0.044 ms, ipg/ewma 126.258/0.112 ms
Output for Junos OS:
user@host> ping device1.example.com rapid PING device1.example.com (192.0.2.0): 56 data bytes !!!!! --- device1.example.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.956/0.974/1.025/0.026 ms
ping hostname size count
user@host> ping device1.example.com size 200 count 5 PING device1.example.com (192.0.2.0): 200 data bytes 208 bytes from 192.0.2.0: icmp_seq=0 ttl=253 time=1.759 ms 208 bytes from 192.0.2.0: icmp_seq=1 ttl=253 time=2.075 ms 208 bytes from 192.0.2.0: icmp_seq=2 ttl=253 time=1.843 ms 208 bytes from 192.0.2.0: icmp_seq=3 ttl=253 time=1.803 ms 208 bytes from 192.0.2.0: icmp_seq=4 ttl=253 time=17.898 ms --- device1.example.com ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 1.759/5.075/17.898 ms
ping hostname count size (No route to host)
Output for Junos OS Evolved:
user@host> ping 40.0.0.2 count 20 size 500 connect: No route to host
Output for Junos OS:
user@host> ping 40.0.0.2 count 20 size 500 Aug 02 12:56:56 [INFO ] Step 2: Host and Transit ping has to fail Aug 02 12:56:56 [TRACE] [R0 evo-ptx-b] [cmd] run ping 40.0.0.2 rapid count 50 size 500 Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] PING 40.0.0.2 (40.0.0.2): 500 data bytes Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] ping: sendto: No route to host Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] .ping: sendto: No route to host Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] ping: sendto: No route to host Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] .ping: .sendto: No route to host Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] ping: sendto: No route to host ug 02 12:57:21 [TRACE] [R0 evo-ptx-b] .. Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] --- 40.0.0.2 ping statistics --- Aug 02 12:57:21 [TRACE] [R0 evo-ptx-b] 50 packets transmitted, 0 packets received, 100% packet loss
Release Information
Command introduced before Junos OS Release 7.4.
ce-ip option introduced in Junos OS Release 17.3
for MX Series routers with MPC and MIC interfaces.
The following options are deprecated
for Junos OS Evolved Release 18.3R1: detail, logical-system, loose-source, mac-address, strict, strict-source, and vpls.
The command tenant option is introduced in Junos
OS Release 19.2R1 for SRX Series.