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From: colin on 29 Jun 2010 01:43
Dear NG,

i got a WS-C6506 on witch we got the following configured:

snmp-server ifindex persist

now after a system reload, for some reasons the OIDs for the modules change,
the interfaces themselves are ok...


---------------------------------------------------------------------------------

sh (s72033_rp-IPSERVICESK9_WAN-VM), Version 12.2(18)SXF8, RELEASE SOFTWARE
(fc2)


Mod Ports Card Type Model Serial
No.
--- ----- -------------------------------------- ------------------ -----------
1 24 CEF720 24 port 1000mb SFP WS-X6724-SFP SAL
4 48 48-port 10/100/1000 RJ45 EtherModule WS-X6148A-GE-TX SAL
5 2 Supervisor Engine 720 (Active) WS-SUP720-3B SAL


---------------------------------------------------------------------------------


enterprises.9.3.6.11.1.3.5 48-port 10/100/1000 RJ45 EtherModule
enterprises.9.3.6.11.1.3.6 Supervisor Engine 720
enterprises.9.3.6.11.1.3.7 Policy Feature Card 3
enterprises.9.3.6.11.1.3.8 MSFC3 Daughterboard
enterprises.9.3.6.11.1.3.9 CEF720 24 port 1000mb SFP
enterprises.9.3.6.11.1.3.10 Centralized Forwarding Card

Last digit of OID suddently changes on reload!

what can i do more than: "snmp-server ifindex persist"











From: Hans Jørgen Jakobsen on 29 Jun 2010 12:47
On Tue, 29 Jun 2010 07:43:33 +0200, colin wrote:
......
>
> enterprises.9.3.6.11.1.3.5 48-port 10/100/1000 RJ45 EtherModule
> enterprises.9.3.6.11.1.3.6 Supervisor Engine 720
> enterprises.9.3.6.11.1.3.7 Policy Feature Card 3
> enterprises.9.3.6.11.1.3.8 MSFC3 Daughterboard
> enterprises.9.3.6.11.1.3.9 CEF720 24 port 1000mb SFP
> enterprises.9.3.6.11.1.3.10 Centralized Forwarding Card
>
> Last digit of OID suddently changes on reload!
>
> what can i do more than: "snmp-server ifindex persist"

This command is intended for ifTable and ifXTable and their extensions.
In most(many) mibs you should expect index is NOT persistent.

/hjj
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From: colin on 2 Jul 2010 05:03
>can i do more than: "snmp-server ifindex persist"
>
> This command is intended for ifTable and ifXTable and their extensions.
> In most(many) mibs you should expect index is NOT persistent.
>
> /hjj

well this seems to be a pain with tools like MRTG or similar, if you have to
reconfigure all over an over again each time
you reload the catalyst 650x...

any suggenstions on how to solve this issues are welcome!


From: Rob on 2 Jul 2010 05:41
colin <colin.cant(a)solnet.ch> wrote:
>>can i do more than: "snmp-server ifindex persist"
>>
>> This command is intended for ifTable and ifXTable and their extensions.
>> In most(many) mibs you should expect index is NOT persistent.
>>
>> /hjj
>
> well this seems to be a pain with tools like MRTG or similar, if you have to
> reconfigure all over an over again each time
> you reload the catalyst 650x...

No that just means you need to read the MRTG documentation...
It was a pain in the first release, but since a very long time you can
match your MRTG config lines on other fields of the interface,
like name, IP address, description.
From: colin on 6 Jul 2010 08:12

> No that just means you need to read the MRTG documentation...
> It was a pain in the first release, but since a very long time you can
> match your MRTG config lines on other fields of the interface,
> like name, IP address, description.

well the thing is my client is not using MRTG unfortuanitely...
and he's now stuck with that problem. i just used MRTG for discussion
reasons.
but thank you for the tip!


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