mtr Introduction¶
mtr is a network diagnostic tool that can diagnose network problems. It is used to replace the ping and traceroute commands. In terms of performance, the mtr command is faster.
Using mtr¶
# Install mtr
shell > dnf -y install mtr
The common options of the mtr command are as follows. Under normal circumstances, no additional options are required, followed by the hostname or IP address directly:
| Options | Description |
|---|---|
| -4 | # Use IPv4 only |
| -6 | # Use IPv6 only |
| -c COUNT | # Number of pings sent |
| -n | # Do not resolve the hostname |
| -z | # Display AS number |
| -b | # Display ip and hostname |
| -w | # Output a wide range of reports |
The information exchanged by the terminal is as follows:
shell > mtr -c 10 bing.com
My traceroutr [v0.92]
li(192.168.100.4) 2021-10-20T08:02:05+0800
Keys:Help Display mode Restart Statistics Order of fields quit
HOST: li Loss% Snt Last Avg Best Wrst StDev
1. _gateway 0.0% 10 2.0 5.6 2.0 12.9 3.6
2. 10.9.128.1 0.0% 10 13.9 14.8 8.5 20.7 3.9
3. 120.80.175.109 0.0% 10 15.8 15.0 10.0 20.1 3.1
4. 112.89.0.57 20.0% 10 18.9 15.2 11.5 18.9 2.9
5.219.158.8.114 0.0% 10 10.8 14.4 10.6 20.5 3.5
6. 219.158.24.134 0.0% 10 13.1 14.5 11.9 18.9 2.2
7. 219.158.10.30 0.0% 10 14.9 21.2 12.0 29.8 6.9
8. 219.158.33.114 0.0% 10 17.7 17.1 13.0 20.0 2.0
9. ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
10. ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
11. ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
12. ??? 100.0 10 0.0 0.0 0.0 0.0 0.0
13. a-0001.a-msedge.net 0.0% 10 18.4 15.7 9.5 19.3 3.1
...
- Loss% - packet loss rate
- Snt - the number of packets sent
- Last - the delay of the last packet
- Avg - average delay
- Best - lowest latency
- Wrst - Worst time delay
- StDev - variance (stability)
Shortcut keys for interaction¶
- P - Pause
- D - Switch display mode
- N - Turn on/off DNS
- R - Reset all counters
- J - Toggle delay display information
- Y - Switch IP information
- Q - Quit
mtr
Author: tianci li
Contributors: Steven Spencer, Neel Chauhan