[mrtg] Cisco Interfaces Problem

[Tawanda Kavayi]

Hi,

The router is running IOS ver 12.2(1). I guess a good first step would 
be to upgrade this. The dot1q subinterfaces don't show up at all in the 
cfg file, even as commented out.

 From snmpwalk, the dot1q subinterfaces appear as so:

IF-MIB::ifDescr.9 = STRING: FastEthernet2/0
SNMPv2-SMI::mib-2.13.3.1.1.2.11 = STRING: "FastEthernet2/0"
SNMPv2-SMI::mib-2.13.3.1.1.2.22 = STRING: "FastEthernet2/0.2"
SNMPv2-SMI::mib-2.13.3.1.1.2.23 = STRING: "FastEthernet2/0.3"
SNMPv2-SMI::mib-2.13.3.1.1.2.24 = STRING: "FastEthernet2/0.955"

The ISL subinterfaces appear as so:

IF-MIB::ifDescr.10 = STRING: FastEthernet3/0
IF-MIB::ifDescr.13 = STRING: FastEthernet3/0.229
IF-MIB::ifDescr.14 = STRING: FastEthernet3/0.249
IF-MIB::ifDescr.15 = STRING: FastEthernet3/0.255
IF-MIB::ifDescr.16 = STRING: FastEthernet3/0.258
IF-MIB::ifDescr.17 = STRING: FastEthernet3/0.282
IF-MIB::ifDescr.18 = STRING: FastEthernet3/0.288
SNMPv2-SMI::mib-2.13.3.1.1.2.12 = STRING: "FastEthernet3/0"
SNMPv2-SMI::mib-2.13.3.1.1.2.25 = STRING: "FastEthernet3/0.229"
SNMPv2-SMI::mib-2.13.3.1.1.2.26 = STRING: "FastEthernet3/0.249"
SNMPv2-SMI::mib-2.13.3.1.1.2.27 = STRING: "FastEthernet3/0.255"
SNMPv2-SMI::mib-2.13.3.1.1.2.28 = STRING: "FastEthernet3/0.258"
SNMPv2-SMI::mib-2.13.3.1.1.2.29 = STRING: "FastEthernet3/0.282"
SNMPv2-SMI::mib-2.13.3.1.1.2.30 = STRING: "FastEthernet3/0.288"
SNMPv2-SMI::enterprises.9.9.41.1.2.3.1.5.10 = STRING: "Interface 
FastEthernet3/0, changed state to up"

Regards,

Tawanda


McDonald, Dan wrote:
> On Tue, 2009-04-14 at 06:37 +0200, Tawanda Kavayi wrote:
>   
>> Hi,
>>
>> I am configuring mrtg to monitor interfaces on a Cisco 3640 router. The 
>> router has subinterfaces with both ISL and dot1q encapsulation 
>> configured. However, after running cfgmaker, none of the dot1q 
>> subinterfaces is appearing in the resultant cfg file. What could be the 
>> problem here?
>>     
>
> IOS "feature" (aka bug) would be my first guess.  You don't mention what
> version of code you are running on the 3640, which can run code all the
> way from 12.1T to 12.4... About 8 years worth of cruft to sift
> through...
>
> when you snmpwalk, do the subinterfaces show up in ifName?  IfInOctets?
> ifHCInOctets?, ifSpeed?
>
> Do the interfaces show up in your config, but commented out?  That would
> probably be an ifSpeed issue...
>
>
>   
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