Difference between revisions of "How to perform a snoop packet capture"
From Tech-Wiki
(Created page with "Category:Juniper Networks http://kb.juniper.net/KB5411 snoop info snoop detail or snoop detail len <snaplen 1-1514> snoop filter ... (see the CLI-help for filter options...") |
|||
| Line 2: | Line 2: | ||
http://kb.juniper.net/KB5411 | http://kb.juniper.net/KB5411 | ||
| + | |||
| + | The debug buffer is a circular buffer, once the buffer has reached the size limit, the oldest data will be overwritten. | ||
| + | The buffer size is configurable. To change the size, use the following commands: | ||
| + | |||
| + | set db size 4096 | ||
| + | set console dbuf | ||
| + | clear db | ||
| + | |||
| + | To set-up the packet snoop: | ||
snoop info | snoop info | ||
| Line 8: | Line 17: | ||
clear dbuf | clear dbuf | ||
snoop | snoop | ||
| − | + | ||
| − | + | ''Reproduce the issue.''<br /> | |
| − | get dbuf stream or get dbuf stream > tftp | + | The timestamp resolution of the output is in tenths of a second.<br /> |
| + | Stop the capture and then display the output with the following command: | ||
| + | |||
| + | snoop off | ||
| + | get dbuf stream or get dbuf stream > tftp <host> <name-of-file> | ||
| + | |||
| + | To clear down: | ||
| + | snoop filter delete | ||
| + | clear dbuf | ||
Revision as of 04:48, 7 March 2012
The debug buffer is a circular buffer, once the buffer has reached the size limit, the oldest data will be overwritten. The buffer size is configurable. To change the size, use the following commands:
set db size 4096 set console dbuf clear db
To set-up the packet snoop:
snoop info snoop detail or snoop detail len <snaplen 1-1514> snoop filter ... (see the CLI-help for filter options) clear dbuf snoop
Reproduce the issue.
The timestamp resolution of the output is in tenths of a second.
Stop the capture and then display the output with the following command:
snoop off get dbuf stream or get dbuf stream > tftp <host> <name-of-file>
To clear down:
snoop filter delete clear dbuf