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| Name | Last modified | Size | Description |
|---|---|---|---|---|
| Parent Directory | - | ||
| iftop | 2003-11-26 15:47 | 17K | |
iftop top interfaces in real time, similarly to the
way the Unix top command displays top CPU processes.
This script is a quick hack based on if-counters.pl
by Simon Leinen, which is supplied with his
SNMP in Perl.
r-peer interval 10.0s 57 reps
ix name pkts/s pkts/s description
in out
27 at-0/1/0.11 56.5k 68.5k Commodity link to Wiscnet @ M
13 at-0/1/0 47.8k 57.5k WAN Connections to WN/I2/AADS
53 ge-0/0/0 45.7k 39.6k Gig to sh-cssc-b280c-1
59 ge-0/0/0.1500 39.7k 36.0k Connection to sh-cssc-b280c-1
15 at-1/1/0 20.3k 13.1k Campus Backbone Port to ASX40
37 ge-1/0/0.34 18.0k 18.3k Campus Webcache Ingress/Egres
14 ge-1/0/0 17.6k 18.0k Gig to e-csscb380-2 port 1/1
32 ge-0/0/0.488 10.5k 8.8k Resnet to Internet Link
26 at-1/1/0.23 9.8k 6.7k Connection to r-animal router
40 at-1/1/0.25 6.2k 6.0k Connection to r-macc router
29 at-1/1/0.24 6.1k 1.3k Connection to r-msc router
36 ge-1/0/0.5 1.4k 1.6k Madison_Local_ISP_POP
23 at-1/1/0.21 1.2k 1.1k Connection to r-whopper route
34 at-0/1/0.18 949 41 MREN Starlight Connection
44 at-1/1/0.27 314 202 Connection to r-speedy
24 at-1/1/0.22 257 196 Connection to r-peterson rout
55 at-0/1/0.51 152 84 UChicago
61 at-0/1/0.19 125 76 ESNet
9 fxp1.0 83 70
2 fxp1 83 68
60 ge-0/0/0.645 11 0 IPv6 for DoIT Staff Network
And the usage information:
Usage: iftop [-t secs] [-v (1|2c)] [-c] [-l] [-m max] [-p port] host [community]
iftop -h
-h print this usage message and exit.
-c also use Cisco-specific variables (locIfInCrc)
-P poll interface unicast packet counters (rather than octets)
-l use 64-bit counters (requires SNMPv2 or higher)
-t secs specifies the sampling interval. Defaults to 10 seconds.
-v version can be used to select the SNMP version. The default
is SNMPv1, which is what most devices support. If your box
supports SNMPv2c, you should enable this by passing "-v 2c"
to the script. SNMPv2c is much more efficient for walking
tables, which is what this tool does.
-m max specifies the maxRepetitions value to use in getBulk requests
(only relevant for SNMPv2c).
-m port can be used to specify a non-standard UDP port of the SNMP
agent (the default is UDP port 161).
host hostname or IP address of a router
community SNMP community string to use. Defaults to "public".