2. H3C
  3. S9500 Series

H3C S9500 Series Command Manual

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  • What is the syntax for the 'ping' command?
    What is the purpose of the 'ping ipv6' command?
    What are the parameters for the 'tracert' command?
    What does the '-i' option do in the 'ping' command?
    What is the default timeout value for the 'ping' command?
    What is recorded when using the '-r' option with the 'ping' command?
    What does the '-s' option do in the 'ping' command?
    What is the default value for the '-c' option in the 'ping ipv6' command?
    What does the '-q' option do in the 'ping ipv6' command?
    What is the maximum value for the '-m' option in the 'tracert' command?
Command Manual – System Maintaining and Debugging
H3C S9500 Series Routing Switches Table of Contents
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Table of Contents
Chapter 1 System Maintaining and Debugging Commands.....................................................1-1
1.1 System Maintaining Commands........................................................................................1-1
1.1.1 ping..........................................................................................................................1-1
1.1.2 ping ipv6..................................................................................................................1-3
1.1.3 tracert......................................................................................................................1-4
1.1.4 tracert ipv6...............................................................................................................1-6
1.2 System Debugging Commands.........................................................................................1-7
1.2.1 debugging................................................................................................................1-7
1.2.2 display debugging...................................................................................................1-8
1.2.3 display lpu fiber-module..........................................................................................1-9
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Chapter 1 System Maintaining and Debugging
Commands
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Chapter 1 System Maintaining and Debugging
Commands
1.1 System Maintaining Commands
1.1.1 ping
Syntax
ping [ ip ] [ -a source-ip | -c count | -f | -h ttl | -i interface-type interface-number | -m
interval | -n | -p pad | -q | -r | -s packet-size | -t timeout | -tos tos | -v | -vpn-instance
vpn-instance-name ] * remote-system
View
Any view
Default Level
0: Visit level
Parameters
ip: Supports IPv4 protocol.
-a source-ip: Specifies the source IP address of an ICMP echo request. It must be a
legal IP address configured on the device.
-c count: Specifies the number of times that an ICMP echo request is sent, in the range
1 to 4294967295. The default value is 5.
-f: Discards packets larger than the MTU of a given interface, that is, the ICMP echo
request is not allowed to be fragmented.
-h ttl: Specifies the TTL value for an ICMP echo request, in the range 1 to 255. The
default value is 255.
-i interface-type interface-number: Specifies the ICMP echo request sending interface
by its type and number.
-m interval: Specifies the interval (in milliseconds) to send an ICMP echo response, in
the range 1 to 65535. The default value is 200 ms.
z If a response from the destination is received within the timeout time, the interval
to send the next echo request equals the actual response period plus the value of
interval.
z If no response from the destination is received within the timeout time, the interval
to send the next echo request equals the timeout value plus the value of interval.
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-n: Specifies that the Domain Name System (DNS) is disabled. DNS is enabled by
default, that is, the hostname is translated into an address.
-p pad: Specifies the padded bytes in an ICMP echo request, in hexadecimal format.
For example, if pad is configured as ff, then the packets will be padded with ff. By
default, the padded bytes start from 0x01 up to 0xff, where another round starts again if
necessary.
-q: Presence of this parameter indicates that only statistics are displayed. By default, all
information is displayed.
-r: Records routes. By default, routes are not recorded.
-s packet-size: Specifies length (in bytes) of an ICMP echo request, in the range 20 to
8100. The default value is 56.
-t timeout: Specifies the timeout value (in milliseconds) of an ICMP echo request, in the
range 0 to 65535. It defaults to 2000.
-tos tos: Specifies type of service (ToS) of an echo request, in the range 0 to 255. The
default value is 0.
-v: Displays non ICMP echo reply received. By default, the system does not display non
ICMP echo reply.
-vpn-instance vpn-instance-name: Specifies the name of an MPLS VPN instance,
which is a string of 1 to 31 characters.
remote-system: IP address or host name (a string of 1 to 20 characters) of the
destination device.
Description
Use the ping command to verify whether the destination device in an IP network is
reachable, and to display the related statistics.
Note that:
z You must use the command in the form of ping ip ip instead of ping ip if the
destination name is a key word, such as ip.
z Only the directly connected segment address can be pinged if the outgoing
interface is specified with the -i argument.
Examples
# Check whether the device with an IP address of 10.1.1.5 is reachable.
<Sysname> ping 10.1.1.5
PING 10.1.1.5 : 56 data bytes, press CTRL_C to break
Reply from 10.1.1.5 : bytes=56 Sequence=1 ttl=255 time = 1 ms
Reply from 10.1.1.5 : bytes=56 Sequence=2 ttl=255 time = 2 ms
Reply from 10.1.1.5 : bytes=56 Sequence=3 ttl=255 time = 1 ms
Reply from 10.1.1.5 : bytes=56 Sequence=4 ttl=255 time = 3 ms
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Reply from 10.1.1.5 : bytes=56 Sequence=5 ttl=255 time = 2 ms
--- 10.1.1.5 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 1/2/3 ms
1.1.2 ping ipv6
Syntax
ping ipv6 [ -a source-ipv6 | -c count | -m interval | -s packet-size | -t timeout ] *
remote-system [ -i interface-type interface-number ]
View
Any view
Default Level
0: Visit level
Parameters
-a source-ipv6: Specifies the source IPv6 address of an ICMP echo request. It must be
a legal IPv6 address configured on the device.
-c count: Specifies the number of times that an ICMPv6 echo request is sent, in the
range 1 to 4294967295. The default value is 5.
-m interval: Specifies the interval (in milliseconds) to send an ICMPv6 echo request, in
the range 1 to 65535. The default value is 200 ms.
z If a response from the destination is received within the timeout time, the interval
to send the next echo request equals the actual response period plus the value of
interval.
z If no response from the destination is received within the timeout time, the interval
to send the next echo request equals the timeout value plus the value of interval.
-s packet-size: Specifies length (in bytes) of an ICMPv6 echo request, in the range 20
to 8100. It defaults to 56.
-t timeout: Specifies the timeout value (in milliseconds) of an ICMPv6 echo request, in
the range 0 to 65535. It defaults to 2000.
remote-system: IPv6 address or host name (a string of 1 to 46 characters) of the
destination device.
-i interface-type interface-number: Specifies an outgoing interface by its type and
number. This parameter can be used only in case that the destination address is the
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Commands
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link local address and the specified outgoing interface must have a link local address
(For the configuration of link local address, see IPv6 Basics in the IP Services Volume).
Description
Use the ping ipv6 command to verify whether an IPv6 address is reachable, and
display the corresponding statistics.
You must use the command in the form of ping ipv6 ipv6 instead of ping ipv6 if the
destination name is an ipv6 name.
Examples
# Verify whether the IPv6 address 2001::1 is reachable.
<Sysname> ping ipv6 2001::1
PING 2001::1 : 56 data bytes, press CTRL_C to break
Reply from 2001::1 bytes=56 Sequence=1 hop limit=64 time = 20 ms
Reply from 2001::1 bytes=56 Sequence=2 hop limit=64 time = 0 ms
Reply from 2001::1 bytes=56 Sequence=3 hop limit=64 time = 0 ms
Reply from 2001::1 bytes=56 Sequence=4 hop limit=64 time = 0 ms
Reply from 2001::1 bytes=56 Sequence=5 hop limit=64 time = 0 ms
--- 2001::1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 0/4/20 ms
The “hop limit” field in this prompt information has the same meaning as the “ttl” field in
the prompt information displayed by the IPv4 ping command, indicating the TTL value
in the ICMPv6 echo request.
1.1.3 tracert
Syntax
tracert [ -a source-ip | -f first-ttl | -m max-ttl | -p port | -q packet-number | -vpn-instance
vpn-instance-name | -w timeout ] * remote-system
View
Any view
Default Level
0: Visit level
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Commands
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Parameters
-a source-ip: Specifies the source IP address of a tracert packet. It must be a legal IP
address configured on the device.
-f first-ttl: Specifies the first TTL, that is, the allowed number of hops for the first packet,
in the range 1 to 255. It defaults to 1 and must be less than the maximum TTL.
-m max-ttl: Specifies the maximum TTL, that is, the maximum allowed number of hops
for a packet, in the range 1 to 255. It defaults to 30, and must be greater than the first
TTL.
-p port: Specifies the UDP port number of the destination device, in the range 1 to
65535. The default value is 33434. You do not need to modify this parameter.
-q packet-number: Specifies the number of probe packets sent each time, in the range
1 to 65535. The default value is 3.
-vpn-instance vpn-instance-name: Specifies the name of an MPLS VPN instance,
which is a string of 1 to 31 characters.
-w timeout: Specifies the packet timeout time, in the range 1 to 65535, in milliseconds.
The default value is 5000 ms.
remote-system: IP address or host name (a string of 1 to 20 characters) of the
destination device.
Description
Use the tracert command to trace the routers the packets traverse from the source to
the destination device.
After having identified network failure with the ping command, you can use the tracert
command to determine the failed node(s).
Output information of the tracert command includes IP addresses of all the switches
the packets traverse from the source to the destination device. If a switch times out, * *
* will be displayed.
Examples
# Display the routers the packets traverse from the current device, with an IP address of
8.26.0.115, to the destination device.
<Sysname> tracert 18.26.0.115
traceroute to 18.26.0.115(18.26.0.115) 30 hops max,40 bytes packet, press
CTRL_C to break
1 128.3.112.1 10 ms 10 ms 10 ms
2 128.32.210.1 19 ms 19 ms 19 ms
3 128.32.216.1 39 ms 19 ms 19 ms
4 128.32.136.23 19 ms 39 ms 39 ms
5 128.32.168.22 20 ms 39 ms 39 ms
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6 128.32.197.4 59 ms 119 ms 39 ms
7 131.119.2.5 59 ms 59 ms 39 ms
8 129.140.70.13 80 ms 79 ms 99 ms
9 129.140.71.6 139 ms 139 ms 159 ms
10 129.140.81.7 199 ms 180 ms 300 ms
11 129.140.72.17 300 ms 239 ms 239 ms
12 * * *
13 128.121.54.72 259 ms 499 ms 279 ms
14 * * *
15 * * *
16 * * *
17 * * *
18 18.26.0.115 339 ms 279 ms 279 ms
1.1.4 tracert ipv6
Syntax
tracert ipv6 [ -f first-ttl | -m max-ttl | -p port | -q packet-number | -w timeout ] *
remote-system
View
Any view
Default Level
0: Visit level
Parameters
-f first-ttl: Specifies the first TTL, that is, the allowed number of hops for the first packet,
in the range 1 to 255. It defaults to 1 and must be less than the maximum TTL.
-m max-ttl: Specifies the maximum TTL, that is, the maximum allowed number of hops
for a packet, in the range 1 to 255. It defaults to 30 and must be greater than the first
TTL.
-p port: Specifies the UDP port number of the destination device, in the range 1 to
65535. The default value is 33434. It is unnecessary to modify this parameter.
-q packet-number: Specifies the number of probe packets sent each time, in the range
1 to 65535, defaulting to 3.
-w timeout: Specifies the timeout time of the probe packets, in the range 1 to 65535, in
milliseconds. The default value is 5000 ms.
remote-system: IPv6 address or host name (a string of 1 to 46 characters) of the
destination device.
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Description
Use the tracert ipv6 command to view the routers the IPv6 packets traverse from the
source to the destination device.
Examples
# View the routes involved for packets to travel from the source to the destination with
IPv6 address 3002::1.
<Sysname> tracert ipv6 3002::1
traceroute to 3002::1 30 hops max,60 bytes packet,press CTRL_C to break
1 3003::1 30 ms 10 ms 10 ms
2 3002::1 10 ms 11 ms 9 ms
1.2 System Debugging Commands
1.2.1 debugging
Syntax
debugging { all [ timeout time ] | module-name [ option ] }
undo debugging { all | module-name [ option ] }
View
User view
Default Level
1: Monitor level
Parameters
all: All debugging functions.
timeout time: Specifies the timeout time for the debugging all command. When all
debugging is enabled, the system automatically executes the undo debugging all
command after the time. The value ranges from 1 to 1440, in minutes.
module-name: Module name. You can use the debugging ? command to display the
current module name.
option: Specifies the debugging option for a specific module. Different modules have
different debugging options in terms of their number and content. You can use the
debugging module-name ? command to display the currently supported options.
Description
Use the debugging command to enable the debugging of a specific module.
Use the undo debugging command to disable the debugging of a specific module.
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By default, debugging functions of all modules are disabled.
Note the following:
z This command is intended for network administrators to diagnose network failure.
z Output of the debugging information may degrade system efficiency, especially
during the execution of the debugging all command. Therefore, use the
command with caution.
z After finishing debugging, you can use the undo debugging all command to
disable all the debugging functions.
z You must configure the debugging, terminal debugging and terminal monitor
commands first to display detailed debugging information on the terminal. For the
detailed description on the terminal debugging and terminal monitor
commands, refer to Information Center Commands in the System Volume.
Related commands: display debugging.
Examples
# Enable IP packet debugging.
<Sysname> debugging ip packet
1.2.2 display debugging
Syntax
display debugging [ interface interface-type interface-number ] [ module-name ]
View
Any view
Default Level
1: Monitor level
Parameters
interface-type interface-number: Specifies an interface by its type and number.
module-name: Module name.
Description
Use the display debugging command to display enabled debugging functions.
Related commands: debugging.
Examples
# Display all enabled debugging functions.
<Sysname> display debugging
IP packet debugging is on
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1.2.3 display lpu fiber-module
Syntax
display lpu fiber-module [ interface-type interface-number ]
View
Any view
Default Level
1: Monitor level
Parameters
interface-type: Interface type.
interface-number: Interface number.
Description
Use the display lpu fiber-module command to display information about all the optical
modules connected to the optical interfaces of the current switch.
Use the display fiber-module [ interface-type interface-number ] command to display
information about the optical module on the specified interface.
Note:
This command is not available if the command level of the current login user is visit.
For related content, refer to the user privilege level command.
Examples
# Display information about all the optical modules connected to the optical interfaces
of the current switch.
<H3C> display fiber-module
GigabitEthernet4/2/2:
Card info: 1000BASE-SFP
Fiber connect: LC
VendorName: DELTA
PartNumber: LCP-1250B4QS
SerialNumber: 0000051504100049
Mode: SingleMode
WaveLength: 1310nm
Length for 9um: 10km
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Table 1-1 display lpu fiber-module command output description
Field Description
GigabitEthernet4/2/2 The optical interface where the optical module resides
Card info Optical interface information
Fiber connect Fiber connector type
VendorName Name of the vendor
PartNumber Part number of the optical module
SerialNumber Serial number of the optical module
Mode Single or multiple mode of the fiber connected
Length for X um: Y
km/m
The transmission distance is Y km/m over the X um fiber.
/