eheh,,that is Cisco.
------------------------------------------------------------------
Alaerte Gladston Vidali
IBM Global Services - SO
Tel.55+11+2121-2879 Fax:55+11+2121-2449
| Charles Sprickman <[EMAIL PROTECTED]>
19-01-2006 23:45 |
|
On Thu, 19 Jan 2006 [EMAIL PROTECTED] wrote:
> There is a command on Cisco box to make the ifIndex permanently, even with
> reloads. I used the command once, but sorry, can not remember by head. You
> may find it on Cisco doc searching for snmp commands.
Just for the record it's not something you can depend on working. The
last two versions I used on a 7206 gleefully ignored it and reindexed a
few thousand atm vcs for me. Wheee!
Charles
> Cordially,
> ------------------------------------------------------------------
> Alaerte Gladston Vidali
> IBM Global Services - SO
> Tel.55+11+2121-2879 Fax:55+11+2121-2449
>
>
>
>
> "Jay A. Kreibich" <[EMAIL PROTECTED]>
> Sent by: [EMAIL PROTECTED]
> 01/19/2006 01:59 PM
> Please respond to
> [EMAIL PROTECTED]
>
>
> To
> Jaime Nebrera <[EMAIL PROTECTED]>
> cc
> [email protected]
> Subject
> Re: [Flow-tools] Data from switches
>
>
>
>
>
>
> On Thu, Jan 19, 2006 at 04:42:30PM +0100, Jaime Nebrera scratched on the
> wall:
>
>> This will sound as an stupid question but we are used to software
>> netflow probes and not those included in some high end equipment.
>
> We're actually using software probes on mirrored ports to monitor our
> exit. Turns out that many of those "include in high end equipment"
> collectors suck and produce very questionable data.
>
>> Currently, to distinguish each probe or port we use the IP of it, but
>> how do you do this when you have multiple ports monitored in the same
>> device (switch)? How does the collector distinguish them?
>
> Each flow record includes an "source if-index" and "dest if-index".
>
>> Also, another stupid one, is snmp needed to be able to distinguish
>> them?
>
> Sometimes. Some devices don't have a hard mapping between physical
> slots/ports and ifindex values. This means if you add/remove cards
> and/or configurations, you can cause the ifindex values to change.
> You can use SNMP to re-map those "soft" ifindex to physical ports, if
> you find them changing on you every time you re-boot the box.
>
> -j
>
> --
> Jay A. Kreibich | CommTech, Emrg Net Tech Svcs
> [EMAIL PROTECTED] | Campus IT & Edu Svcs
> <http://www.uiuc.edu/~jak> | University of Illinois at U/C
> _______________________________________________
> Flow-tools mailing list
> [EMAIL PROTECTED]
> http://mailman.splintered.net/mailman/listinfo/flow-tools
>
_______________________________________________ Flow-tools mailing list [EMAIL PROTECTED] http://mailman.splintered.net/mailman/listinfo/flow-tools
