4000 Router Series Network Management and Monitoring Command Reference

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Table 1 Command output

Field Descri

tion

Ping 1.1.2.2 (1.1.2.2): 56 data

bytes, press escape sequence to

break

Test whether the device with IP address 1.1.2.2 is reachable. There are

56 data bytes in each ICMP echo request. Press the break key sequence

combination (Ctrl+C by default) to abort the ping operation.

56 bytes from 1.1.2.2: icmp_seq=0

ttl=254 time=4.685 ms

Received ICMP echo replies from the device whose IP address is

1.1.2.2. If no echo reply is received during the timeout period, no

information is displayed.

• bytes—Number of data bytes in the ICMP reply.

• icmp_seq—Packet sequence, used to determine whether a segment is

lost, disordered or repeated.

• ttl—TTL value in the ICMP reply.

• time—Response time.

RR:

Routers through which the ICMP echo request passed. They are

displayed in inversed order, which means the router with a smaller

distance to the destination is displayed first.

--- Ping statistics for 1.1.2.2 --- Statistics on data received and sent in the ping operation.

--- Ping statistics for 1.1.2.2 in VPN

instance vpn1 ---

Ping statistics for a device in a VPN instance.

5 packet(s) transmitted Number of ICMP echo requests sent.

5 packet(s) received Number of ICMP echo replies received.

0.0% packet loss Percentage of packets not responded to the total packets sent.

round-trip min/avg/max/std-dev =

4.685/4.761/4.834/0.058 ms

Minimum/average/maximum/standard deviation response time, in

milliseconds.

ping ipv6

Use ping ipv6 to verify whether an IPv6 address is reachable, and display related statistics.

Syntax

| -vpn-instance vpn-instance-name ] * host [ -i interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

Parameters

-a source-ipv6: Specifies the source IPv6 address of an ICMP echo request. It must be a valid IPv6

address configured on the device. If this option is not specified, the source IPv6 address of an ICMP echo

request is the IPv6 address of the outbound interface of the request. (The address selection rule is defined

by RFC 3484.)

-c count: Specifies the number of times that an ICMPv6 echo request is sent. The count argument is in the

range of 1 to 4294967295. The default value is 5.