Cisco 7301 - Seems to many interfaces

GarethC · Post by **GarethC** » Tue Jan 17, 2006 9:40 am

Hi

I am having a problem graphing 5 interfaces on a cisco 7301 due to router actually having 6000 interfaces (its a 7301 running as a broadband aggreation unit)

the interfaces i want to graph is

ATM1/0 and 2 sub atm interfaces
GigE 0/1 - 0/3

Cacti page loads all the subinterfaces but when i choose the ones to graph and submit it, the page says graphs created

router1 - Traffic - |query_ifName|

and without the interface name and does not make the rrd files and obviously no pngs are created.

Anyone know of any workarounds or fixes (i'm guessing the problem is down to the amount of interfaces)

GarethC · Post by **GarethC** » Thu Jan 19, 2006 4:53 am

Has no one any ideas ? even the developers...

If i choose to add to graph

1 1 ATM1/0 AT1/0

When the page refreshes after trying to add standard interface graphs or the 64 bit counters it says

Created graph: l2gw-1.tchx - Traffic - |query_ifName|

And its not creating the rrd or actually setting it up correctly
but this is only one a router with 6000+ virtual interfaces.

Post by **TheWitness** » Thu Jan 19, 2006 6:20 am

Post a walk of the ifInterfaces table and the ifExtra table and post.

snmpbulkwalk -c <your_community> -v 2c <your_host> .1.3.6.1.2.1.2 > ifInterfaces.txt
snmpbulkwalk -c <your_community> -v 2c <your_host> .1.3.6.1.2.1.31.1.1 > ifXTable.txt

TheWitness

GarethC · Post by **GarethC** » Thu Jan 19, 2006 8:58 am

Please find attached, I had to rar them to get around the limit of file uploads.

Thanks for your help.

Gareth

Post by **TheWitness** » Fri Jan 20, 2006 6:52 am

Ok, can you send me a dump of your database with this device added. With that information, I should be able to track down the source of the error. Ru using snmp v2? You can use my e-mail to ship it.

TheWitness

GarethC · Post by **GarethC** » Fri Jan 20, 2006 7:04 am

have sent the info, thanks.

GarethC · Post by **GarethC** » Mon Jun 05, 2006 5:05 am

Any luck resolving this issue ? really need to graph a router and can't afford to shut it down to clear the virtual interfaces.

Ariel · Post by **Ariel** » Tue Jul 11, 2006 5:30 pm

Not sure if this helps but I've run into the same basic problem.. If you do NOT require SNMP access to the Virtual-Interface stats (depending on your version of IOS) you can disable SNMP on the Virtual-Interfaces by adding "no virtual-template snmp" to your 7300 configuration (it's a global command ie. router(config)#). This not only would remove the Virtual-Interfaces from SNMP walks etc, but should also drop the CPU utilization on the 7300's a bit..

DISCLAIMER:
Your milage may vary and I would recommend testing any config changes before you roll it out on a production box..

Post by **TheWitness** » Wed Jul 12, 2006 8:00 pm

Ariel,

You comments are very informative! Thanks...

TheWitness

Cisco 7301 - Seems to many interfaces

Cisco 7301 - Seems to many interfaces

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