The following configuration gathers statistical information about a moderate percentage of packets using the FTP data transfer protocol in the output path of a specific T3 interface, and collects the information in a file named t3-ftp-traffic.txt.
Create a filter:
- [edit firewall family inet]
- filter ftp-stats {
-
- term ftp-usage {
-
- from {
- destination-port [ftp ftp-data];
- }
-
- then {
- sample;
- accept;
- }
- }
- }
Apply the filter to the T3 interface:
- [edit interfaces]
- t3-7/0/2 {
-
- unit 0 {
-
- family inet {
-
- filter {
- input ftp-stats;
- }
-
- address 10.35.78.254/32 {
- destination 10.35.78.4;
- }
- }
- }
- }
Finally, gather statistics on 10 percent of the candidate samples:
- [edit forwarding-options]
- sampling {
-
- input {
-
- family inet {
- rate 10;
- }
- }
-
- output {
-
- file {
- filename t3-ftp-traffic.txt;
- files 50;
- size 1m;
- }
- }
- }