tracetopends1

Usage

Overview

tracetopends reports the number of bytes and packets sent and received by the busiest endpoints observed in the input trace(s).

-f bpf filter

Output only packets that match tcpdump style bpf filter.

-n top count

Report the top N endpoints (defaults to 10).

-A address type

Specifies how an endpoint should be defined. Suitable options are "mac", "v4" and "v6" which will report endpoint stats for each observed MAC address, IPv4 address and IPv6 address respectively.

-s

Sort endpoints based on the amount of outgoing traffic (will cancel any previous -d option. This is on by default.

-d

Sort endpoints based on the amount of incoming traffic (will cancel any previous -s option.

-b

Sort endpoints based on the amount of IP traffic (will cancel any previous -a or -p options. This is on by default.

-a

Sort endpoints based on the amount of application layer traffic (will cancel any previous -b or -p options.

-p

Sort endpoints based on the amount of packets (will cancel any previous -b or -a options.

Output

Output is written to stdout in columns separated by blank space.

The columns are (in order):
* Endpoint address
* Time last observed
* Packets originating from the endpoint
* Bytes originating from the endpoint (IP header onwards)
* Payload originating from the endpoint (post transport header)
* Packets sent to the endpoint
* Bytes sent to the endpoint (IP header onwards)
* Payload sent to the endpoint (post transport header)

Examples

Find the IPv4 addresses that are sending the most traffic.

tracetopends -A v4 -b -s erf:trace.erf.gz

Links

More details about tracetopends (and libtrace) can be found at http://www.wand.net.nz/trac/libtrace/wiki/UserDocumentation