Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches Table of Contents
i
Table of Contents
Chapter 1 Basic System Configuration and Debugging Commands.......................................1-1
1.1 Basic System Configuration Commands...........................................................................1-1
1.1.1 clock datetime......................................................................................................... 1-1
1.1.2 clock summer-time..................................................................................................1-1
1.1.3 clock timezone.........................................................................................................1-3
1.1.4 language-mode.......................................................................................................1-4
1.1.5 quit...........................................................................................................................1-4
1.1.6 return....................................................................................................................... 1-5
1.1.7 sysname..................................................................................................................1-5
1.1.8 system-view.............................................................................................................1-6
1.2 System Status/Information Display Commands................................................................ 1-7
1.2.1 display clock............................................................................................................1-7
1.2.2 display debugging...................................................................................................1-7
1.2.3 display users ........................................................................................................... 1-8
1.2.4 display version.........................................................................................................1-9
1.3 System Debugging Commands.......................................................................................1-10
1.3.1 debugging..............................................................................................................1-10
1.3.2 display diagnostic-information...............................................................................1-11
1.3.3 terminal debugging................................................................................................1-12
Chapter 2 Network Connectivity Test Commands.....................................................................2-1
2.1 Network Connectivity Test Commands .............................................................................2-1
2.1.1 ping..........................................................................................................................2-1
2.1.2 tracert......................................................................................................................2-3
Chapter 3 Device Management Commands ...............................................................................3-1
3.1 Device Management Commands ...................................................................................... 3-1
3.1.1 boot boot-loader......................................................................................................3-1
3.1.2 boot bootrom...........................................................................................................3-2
3.1.3 boot bootrom default...............................................................................................3-2
3.1.4 bootrom-update security-check enable...................................................................3-3
3.1.5 display boot-loader..................................................................................................3-3
3.1.6 display cpu ..............................................................................................................3-4
3.1.7 display device.......................................................................................................... 3-5
3.1.8 display environment................................................................................................3-6
3.1.9 display fan...............................................................................................................3-6
3.1.10 display memory.....................................................................................................3-7
3.1.11 display power ........................................................................................................ 3-8
3.1.12 display schedule reboot ........................................................................................3-9
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches Table of Contents
ii
3.1.13 display uplink monitor............................................................................................ 3-9
3.1.14 loadsharing enable..............................................................................................3-10
3.1.15 pause-protection .................................................................................................3-11
3.1.16 qe monitor ...........................................................................................................3-12
3.1.17 qe monitor errpkt................................................................................................. 3-12
3.1.18 qe monitor errpkt check-time...............................................................................3-13
3.1.19 qe monitor overflow-threshold.............................................................................3-14
3.1.20 rdram...................................................................................................................3-14
3.1.21 reboot..................................................................................................................3-15
3.1.22 schedule reboot at...............................................................................................3-15
3.1.23 schedule reboot delay.........................................................................................3-17
3.1.24 temperature-limit.................................................................................................3-18
3.1.25 uplink monitor...................................................................................................... 3-19
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-1
Chapter 1 Basic System Configuration and
Debugging Commands
1.1 Basic System Configuration Commands
1.1.1 clock datetime
Syntax
clock datetime HH:MM:SS YYYY/MM/DD
View
User view
Parameters
HH:MM:SS: Current time, where HH ranges from 0 to 23, MM and SS range from 0 to
59.
YYYY/MM/DD: Current date, where YYYY is the year ranging from 2000 to 2099, MM is
the month ranging from 1 to 12, and DD is the day the range of which is related with the
month.
Description
Use the clock datetime command to set the current date and time of the Ethernet
switch.
In an environment that needs to obtain exact absolute time, it is required to use this
command to set the current date and time of the Ethernet switch.
Related commands: display clock.
Examples
# Set the current date and time of the Ethernet switch to 0:0:0 2001/01/01.
<H3C> clock datetime 0:0:0 2001/01/01
1.1.2 clock summer-time
Syntax
clock summer-time zone-name one-off start-time start-date end-time end-date
offset-time
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-2
clock summer-time zone-name repeating { start-time start-date end-time end-date |
start-time start-year start-month start-week start-day end-time end-year end-month
end-week end-day } offset-time
undo clock summer-time
View
User view
Parameters
zone-name: Name of the daylight saving time, 1 to 32 characters long.
one-off: Sets the daylight saving time for only one year (the specified year).
repeating: Sets the daylight saving time for every year starting from the specified year.
start-time start-date: Start time and start date of the daylight saving time, in the form of
HH:MM:SS YYYY/MM/DD.
end-time end-date: End time and end date of the daylight saving time, in the form of
HH:MM:SS YYYY/MM/DD.
start-year: Start year, in the range of 2000 to 2099.
start-month: Start month, the value of which is January, February, March, April, May,
June, July, August, September, October, November, and December.
start-week: Start week, the value of which is first, second, third, fourth, fifth, and last.
start-day: Start day, the value of which is Sunday, Monday, Tuesday, Wednesday,
Thursday, Friday, and Saturday.
end-year: End year, which should be the same year as the start year, ranges from 2000
to 2099.
end-month: End month, the value of which is January, February, March, April, May,
June, July, August, September, October, November, and December.
end-week: End week, the value of which is first, second, third, fourth, fifth, and last.
end-day: End day, the value of which is Sunday, Monday, Tuesday, Wednesday,
Thursday, Friday, Saturday.
offset-time: Offset of the daylight saving time relative to the standard time.
Description
Use the clock summer-time command to set the name and time range of the daylight
saving time.
Use the undo clock summer-time to cancel the settings.
After the setting, you can use the display clock command to check the results. The
time of the log and debugging information adopts the local time that has been adjusted
by the time zone and daylight saving time.
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-3
Related commands: clock timezone.
Examples
# Set the daylight saving time named z2, which starts from 06:00:00 2002/06/08, ends
until 06:00:00 2002/09/01, and is one hour ahead of the standard time.
<H3C> clock summer-time z2 one-off 06:00:00 2005/06/08 06:00:00 2002/09/01
01:00:00
# Set the daylight saving time named z2, which starts from 06:00:00 06/08, ends until
06:00:00 09/01, and is one hour ahead of the standard time every year from 2002 on.
<H3C> clock summer-time z2 repeating 06:00:00 2002/06/08 06:00:00 2002/09/01
01:00:00
1.1.3 clock timezone
Syntax
clock timezone zone-name { add | minus } HH:MM:SS
undo clock timezone
View
User view
Parameters
zone-name: Name of the time zone, in length of 1 to 32 characters.
add: Sets the time zone to a time before the UTC time.
minus: Sets the time zone to a time behind the UTC time.
HH:MM:SS: Time to be subtracted from the UTC time, in the form of HH:MM:SS.
Description
Use the clock timezone command to set the local time zone.
Use the undo clock timezone command to restore the local time zone to the default
UTC (universal time coordinated) time zone.
After the setting, you can use the display clock command to check the results. The log
information time and the debugging information time adopt the local time that has been
adjusted by the time zone and the daylight saving time.
Related commands: clock summer-time.
Examples
# Set the local time zone named z5, which is five hours ahead of the UTC time.
<H3C> clock timezone z5 add 05:00:00
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-4
1.1.4 language-mode
Syntax
language-mode { chinese | english }
View
User view
Parameters
chinese: Sets the CLI language environment to Chinese.
English: Sets the CLI language environment to English.
Description
Use the language-mode command to toggle between the language modes (that is,
language environments) of the command line interface (CLI) to meet your requirement.
By default, the CLI language mode is english.
Examples
# Toggle from the english mode to the chinese mode.
<H3C> language-mode chinese
1.1.5 quit
Syntax
quit
View
Any view
Parameters
None
Description
Use the quit command to return from current view to lower level view, or exit the system
if current view is user view.
The following lists the three levels of views available (from lower level to higher level):
z User view
z System view
z VLAN view, Ethernet port view, and so on
Related commands: return and system-view.
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-5
Examples
# Return from system view to user view.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] quit
<H3C>
1.1.6 return
Syntax
return
View
System view and higher level views
Parameters
None
Description
Use the return command to return from current view to user view. The composite key
<Ctrl+Z> has the same effect with the return command.
Related commands: quit.
Examples
# Return from interface view to user view.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] interface Ethernet 1/0/1
[H3C-Ethernet1/0/1] return
<H3C>
1.1.7 sysname
Syntax
sysname sysname
undo sysname
View
System view
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-6
Parameters
sysname: System name of the Ethernet switch. It is a character string in length of 1 to
30 characters. By default, it is H3C.
Description
Use the sysname command to set the system name of the Ethernet switch. Changing
the system name will affect the CLI prompt. For example, if the system name of the
switch is H3C, the prompt for user view is <H3C>.
Use the undo sysname command to restore the default system view of the Ethernet
switch.
Examples
# Set the system name of the Ethernet switch to H3CLANSwitch.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] sysname H3CLANSwitch
[H3CLANSwitch]
1.1.8 system-view
Syntax
system-view
View
User view
Parameters
None
Description
Use the system-view command to enter system view from user view.
Related commands: quit and return.
Examples
# Enter system view from user view.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C]
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-7
1.2 System Status/Information Display Commands
1.2.1 display clock
Syntax
display clock
View
Any view
Parameters
None
Description
Use the display clock command to display the current date and time of the system, so
that you can adjust them if they are wrong.
The maximum date and time that can be displayed by this command is 23:59:59
9999/12/31.
Related commands: clock datetime.
Examples
# Display the current date and time of the system.
<H3C> display clock
18:36:31 beijing Sat 2002/02/02
Time Zone : beijing add 01:00:00
Summer-Time : bj one-off 01:00:00 2003/01/01 01:00:00 2003/08/08 01:00:00
Table 1-1 Description on the fields of the display clock command
Field Description
18:36:31 beijing Sat 2002/02/02 Current date and time of the system
Time Zone Configured time zone information
Summer-Time Configured daylight saving time information
1.2.2 display debugging
Syntax
display debugging [ interface interface-type interface-number ] [ module-name ]
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-8
View
Any view
Parameters
interface-type: Interface type, supported by the switch, which can be Ethernet,
GigabitEthernet, AUX, VLAN-interface and so on.
interface-number: Interface number.
module-name: Module name.
Description
Use the display debugging command to display enabled debugging.
If you want to view the current enabled debugging, you can execute the display
debugging command. Executing this command without any parameter will display all
enabled debugging.
Related commands: debugging.
Examples
# Display all enabled debugging.
<H3C> display debugging
IP packet debugging is on.
The above information indicates that the IP packets debugging is enabled.
1.2.3 display users
Syntax
display users [ all ]
View
Any view
Parameters
all: Displays the information about all user terminal interfaces.
Description
Use the display users command to display the status and configuration information
about user terminal interfaces.
Examples
# Display the status and configuration information about user terminal interfaces.
<H3C> display users
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-9
UI Delay Type Ipaddress Username
0 AUX 0 00:00:17
8 VTY 0 01:37:55 TEL 192.168.0.200
+ 9 VTY 1 00:00:00 TEL 192.168.0.3
12 VTY 4 00:00:00 TEL 192.168.0.115
Table 1-2 Description on the output user terminal interface information
Item Description
UI User interface
Delay Delay time when no interaction occurs between user and device
Type User login type
Ipaddress IP address used when login using telnet program
Username User name
1.2.4 display version
Syntax
display version
View
Any view
Parameters
None
Description
Use the display version command to display the information (such as the version
information) about the switch system.
Specifically, you can use this command to check the software version and issue time,
the basic hardware configuration, and some other information about the switch.
Examples
# Display the version of the system.
<H3C> display version
H3C Comware Platform Software
Comware software, Version 3.10, Release 3135
Copyright (c) 2004-2007 Hangzhou H3C Technologies Co., Ltd. All rights
reserved.
H3C S7506R uptime is 0 week, 0 day, 0 hour, 23 minutes
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-10
SRPG 1: uptime is 0 weeks,0 days,0 hours,23 minutes
H3C S7500 with 1 MPC8245 Processor
256M bytes SDRAM
32768K bytes Flash Memory
512K bytes NVRAM Memory
PCB Version : VER.B
BootROM Version : 530
CPLD Version : 004
Second CPLD Ver : 005
Software Version : S7506R-3135
Patch Version : None
LPU 1: uptime is 0 weeks,0 days,0 hours,21 minutes
H3C S7500 LPU with 1 MPC8241 Processor
128M bytes SDRAM
0K bytes Flash Memory
0K bytes NVRAM Memory
PCB Version : VER.B
BootROM Version : 510
CPLD Version : 002
Software Version : S7506R-3135
Patch Version : None
1.3 System Debugging Commands
1.3.1 debugging
Syntax
debugging { all [ timeout interval ] | module-name debugging-option }
undo debugging { all | module-name debugging-option }
View
User view
Parameters
all: Enables or disables all debugging.
timeout interval: Sets the timeout time for all debugging, in the range of 1 to 1,440 (in
minutes). After the setting, all debugging is valid in the specified period which starts
from the time when the debugging is enabled. After the period, all debugging will be
disabled.
module-name: Module name.
debugging-option: Debugging option.
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-11
Description
Use the debugging command to enable system debugging.
Use the undo debugging command to disable system debugging.
By default, all debugging is disabled for the system.
Ethernet switches provide various debugging functions for technical support specialists
and senior maintenance personnel to do network fault diagnostics.
Enabling debugging will generate a great deal of debugging information and thus will
affect the efficiency of the system, especially after enabling all debugging through the
debugging all command, the system may collapse. Therefore, it is recommended not
to use the debugging all command. The undo debugging all command brings great
convenience for you to disable all debugging at a time instead of disabling them one by
one.
Related commands: display debugging.
Examples
# Enable IP packet debugging.
<H3C> debugging ip packet
1.3.2 display diagnostic-information
Syntax
display diagnostic-information [ module-name ]
View
Any view
Parameters
module-name: Module name. See the following table for details:
Table 1-3 Module name list
Module name Description
ARP ARP module information
DRV Driver information
FTTH FTTH information
IGMP Multicast information
IP IP module information
L2INF Interface management information
LACP Link aggregation information
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-12
Module name Description
MEMORY Memory information
QUEUE Queue management information
RXTX Packet transmission information
STP STP information
SYSTEM System status information
Description
Use the display diagnostic-information command to display operation information
about all or specified functional modules.
When the system goes wrong, you need to collect much information to locate the fault.
However, each module has its corresponding display command, which make it difficult
for you to collect all the information needed at a time. In this case, you can use display
diagnostic-information command to collect the operation information about all or
specified module. For displaying all information at a time costs a long time and is not
convenient to view, this command provides two modes for you to collect the information
z Output information to the Console.
z Output information to a file.
You can choose one according to the prompt of the system.
Examples
# Display operation information about ARP module, output the information to the file
diaginfo.txt and save the file to the Flash memory.
<H3C> display diagnostic-information ARP
Redirect it to file?[Y/N]y
Please input the file name(*.txt)[flash:/diaginfo.txt]:
This operation may take a few minutes, continue?[Y/N]y
Writing diagnostic information to flash:/diaginfo.txt now.
.......
<H3C>
1.3.3 terminal debugging
Syntax
terminal debugging
undo terminal debugging
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 1 Basic System Configuration
and Debugging Commands
1-13
View
User view
Parameters
None
Description
Use the terminal debugging command to enable terminal display for debugging
information.
Use the undo terminal debugging command to disable terminal display for debugging
information.
By default, terminal display for debugging information is disabled.
Related commands: debugging.
Examples
# Enable terminal display for debugging information.
<H3C> terminal debugging
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 2 Network Connectivity Test
Commands
2-1
Chapter 2 Network Connectivity Test Commands
2.1 Network Connectivity Test Commands
2.1.1 ping
Syntax
ping [ -a ip-address | -c count | -d | -f | -h ttl | -i interface-type interface-number | -n | - p
pattern | -q | -r | -s packetsize | -t timeout | -tos tos | -v | ip ]* host-ip
ping ipx ipx-address [ -c count | -s packetsize | -t timeout ]*
ping clns nsap-address
View
Any view
Parameters
-a ip-address: Sets the source IP address to send the ICMP ECHO-REQUEST packets.
-c count: Specifies how many times the ICMP ECHO-REQUEST packet will be sent.
The count argument is the times, which ranges from 1 to 4,294,967,295 and defaults to
5.
-d: Sets the socket to DEBUGGING mode. By default, it is non-DEBUGGING mode.
-f: Specifies to discard a packet directly instead of fragmenting it if its length is greater
than the MTU (maximum transmission unit) of the interface.
-h ttl: Sets the TTL (time to live) value of the echo request packets in the range of 1 to
255. By default, the TTL value is 255.
-i: Selects the specified interface to send the ICMP packets.
interface-type: Interface type.
interface-number: Interface number.
-n: Specifies to regard the host-ip argument as an IP address without performing
domain name resolution. By default, the host-ip argument is first regarded as an IP
address; if it is not an IP address, domain name resolution is performed.
-p pattern: Specifies the padding byte pattern of the ICMP ECHO-REQUEST packets.
The pattern argument is a byte in hexadecimal. For example, -p ff fills a packet with only
ff. By default, the system fills a packet with 0x01, 0x02, and so on, until 0x09; then it
repeats this procedure from 0x01 again.
-q: Specifies to display only the statistics and not to display the details. By default, all
the information including the details and statistics will be displayed.
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 2 Network Connectivity Test
Commands
2-2
-r: Specifies to record the routes. By default, the system does not record any route.
-s packetize: Specifies the size (in bytes) of each ECHO-REQUEST packet (excluding
the IP and ICMP headers). The packetize argument ranges from 20 to 32,000 and
defaults to 56 bytes.
-t timeout: Sets the timeout time (in ms) waiting for an ECHO-RESPONSE packet after
an ECHO-REQUEST packet is sent. The timeout argument ranges defaults to 2,000
ms.
-tos tos: Sets the ToS value of the echo request packets in the range of 0 to 255. By
default, this value is 0.
-v: Specifies to display other ICMP packets received (that is, non-ECHO-RESPONSE
packets). By default, except for the ECHO-RESPONSE packets, other ICMP packets
are not displayed.
ip: Chooses IP ICMP packet.
host-ip: Domain name or IP address of the destination host, 1 to 30 characters long.
ipx: Chooses IPX packet.
ipx-address: IPX address of the destination host.
clns: Chooses CLNS ECHO packets.
nsap-address: NSAP address of the destination host.
Description
Use the ping command to check the connectivity of IP network or IPX network, and the
reachability of a host.
The process of executing of the ping command in the IP network: First, the source host
sends an ICMP ECHO-REQUEST packet to the destination host. If the connection to
the destination network is normal, the destination host receives this packet and
responds with an ICMP ECHO-REPLY packet.
You can use the ping command to check the network connectivity and the quality of a
network line. This command can output the following information:
z Response status of the destination to each ICMP ECHO-REQUEST packet. If no
response packet is received within the timeout time, including the number of bytes,
packet sequence number, TTL and response time of the response packet. If no
response packet is received within the timeout time, the message "Request time
out" is displayed instead.
z Final statistics, including the numbers of sent packets and received response
packets, the irresponsive packet percentage, and the minimum, average and
maximum values of response time.
You can set a relatively long timeout time waiting for response packet if the network
transmission is slow.
Related commands: tracert.
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 2 Network Connectivity Test
Commands
2-3
Examples
# Check the reachability of the host with IP address 202.38.160.244.
<H3C> ping 202.38.160.244
Ping 202.38.160.244: 56 data bytes, press CTRL_C to break
Reply from 202.38.160.244 : bytes=56 sequence=1 ttl=255 time = 1ms
Reply from 202.38.160.244 : bytes=56 sequence=2 ttl=255 time = 2ms
Reply from 202.38.160.244 : bytes=56 sequence=3 ttl=255 time = 1ms
Reply from 202.38.160.244 : bytes=56 sequence=4 ttl=255 time = 3ms
Reply from 202.38.160.244 : bytes=56 sequence=5 ttl=255 time = 2ms
--202.38.160.244 ping statistics--
5 packet transmitted
5 packet received
0.00% packet loss
round-trip min/avg/max = 1/2/3 ms
2.1.2 tracert
Syntax
tracert [ -a source-ip | -f first-TTL | -m max-TTL | -p port | -q num-packet | -w timeout ]
* host
tracert clns [ -m max-TTL | -n num-packet | -t timeout | -v ]* nsap-address
View
Any view
Parameters
-a source-ip: Sets the source IP address used by this command.
-f first-TTL: Sets the initial TTL of the packets to be sent, so that this command displays
the addresses of only those gateways on the path whose hop counts are not smaller
than the hop count specified by the first-TTL argument. For example, if the first-TTL
argument is three, the command displays the addresses of the gateways from the third
hop. The first-TTL argument ranges from 1 to 255 and defaults to 1.
-m max-TTL: Sets the maximum TTL value of the packets to be sent. After the
command sends a packet with the maximum TTL, it will not send any more packets.
With this argument, this command displays the addresses of only those gateways from
the source destination to the hop count specified by the argument. For example, if the
max-TTL argument is 5, the command displays the addresses of the gateways from the
source to the fifth count. The max-TTL argument ranges from 1 to 255 and defaults to
30.
-p port: Sets the destination port of the packets to be sent. The port argument ranges
from 0 to 65535 and defaults to 33434. Generally, you need not change the argument.
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 2 Network Connectivity Test
Commands
2-4
-q num-packet: Sets the number of packets to be sent every time. The num-packet
argument ranges from 0 to 65,535 and defaults to 3.
-w timeout: Sets the timeout time to wait for ICMP error packets. The timeout argument
ranges from 0 to 65,535 and defaults to 5,000 (in milliseconds).
host: IP address of the destination host or the host name of the remote system, 1 to 30
characters long.
clns: Connectionless network service, a suit of protocols in OSI system, including CLNP,
ISIS and ESIS.
-m max-TTL: Sets a maximum TTL value. The max-TTL argument ranges from 1 to 255
and defaults to 30.
-n num-packet: Indicates the integral number of the sent test packets. The num-packet
argument ranges from 0 to 65535 and defaults to 3.
-t timeout: Sets the timeout time of the tracert command. The timeout argument, in
seconds, ranges from 0 to 65535 and defaults to 5.
-v: Explains the error if the response packet error occurs. If no error occurs, after you
execute the command, the result is the same as the command is executed without -v.
nsap-address: NSAP address of the destination host.
Description
Use the tracert command to trace the gateways the test packets passes through during
its journey from the source to the destination. This command is mainly used to check
the network connectivity. It can help you locate the trouble spot of the network.
The executing procedure of the tracert command is as follows: First, the source sends
a packet with the TTL of 1, and the first hop device returns an ICMP error message
indicating that it cannot forward this packet because of TTL timeout. Then, the source
resends a packet with the TTL of 2, and the second hop device also returns an ICMP
TTL timeout message. This procedure goes on and on until a packet gets to the
destination or the maximum TTL is reached. During the procedure, the system records
the source address of each ICMP TTL timeout message in order to offer the path that
the packets pass through to the destination.
If you find that the network is in trouble by using the ping command, you can use the
tracert command to find where the trouble is in the network.
The tracert command can output the IP addresses of all the gateways the packets pass
through to the destination. It output the string "***" if a gateway times out.
Examples
# Trace the gateways the packets pass through during its journey to the destination with
IP address 18.26.0.115.
<H3C> tracert 18.26.0.115
Command Manual – System Maintenance and Debugging
H3C S7500 Series Ethernet Switches
Chapter 2 Network Connectivity Test
Commands
2-5
tracert to 18.26.0.115(18.26.0.115), 30 hops max, 40 bytes packet
1 128.3.112.1(128.3.112.1) 0 ms 0 ms 0 ms
2 128.32.216.1(128.32.216.1) 19 ms 19 ms 19 ms
3 128.32.21.61(128.32.21.61) 39 ms 19 ms 19 ms
4 128.32.136.23(128.32.136.23) 19 ms 39 ms 39 ms
5 128.32.168.22(128.32.168.22) 20 ms 39 ms 39 ms
6 128.32.197.4(128.32.197.4) 59 ms 119 ms 39 ms
7 131.119.2.5(131.119.2.5) 59 ms 59 ms 39 ms
8 129.140.70.13(129.140.70.13) 80 ms 79 ms 99 ms
9 129.140.71.6(129.140.71.6) 139 ms 139 ms 159 ms
10 129.140.81.7(129.140.81.7) 199 ms 180 ms 300 ms
11 129.140.72.17(129.140.72.17) 300 ms 239 ms 239 ms
12 * * *
13 128.121.54.72(128.121.54.72) 259 ms 499 ms 279 ms
14 * * *
15 * * *
16 * * *
17 * * *
18 18.26.0.115(18.26.0.115) 339 ms 279 ms 279 ms
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
Ask a question and I''ll find the answer in the document
Finding information in a document is now easier with AI
Related papers
-
H3C S9500 Series Command Manual
-
-
H3C S7500 Series Operating instructions
-
-
-
H3C S3610 Series Operating instructions
-
-
-
-