[mrtg] Re: serial sub-interface

[dmcdonald]

>The problem is that graph of this Internet subinterface is giving full 
>utilization during off hours. Value drops down to zero after every two hours 
>but stays up for rest of the time. Now we do not have any Internet traffic 
>during off hours at all. Any ideas?

Are you sure you haven't been hacked?  Certain that nobody hasn't set up a quake server on your network?  It would be worth it to start netflow and at least figure out what ports are in use, or set up a time-based access-list and log to syslog all of the unexpected traffic, or maybe drop a sniffer in to watch...

>
>Second is that I am interested in monitoring voice on my 3640 particullary 
>the following:
>
>number of calls
Easiest done by using gw-accounting on the router and setting up radius to capture the calls.

>packet loss
Pretty hard to correlate this.  I don't think there are any stats on this kept...

>round trip delay
Again, hard to get.  You might be able to fire up NTP with 12.1.3T or later and query the NTP mib to get link latency times.

>errors
Errors are physical layer - pretty hard to correlate with a specific frame relay instance.  Grabing the errors from the Transport.ds1-mib might be the way to go, but they are not simple atomic counters, so they are a little hard to generate useful graphs.

>and bandwidth utilization per call
This will be in the radius record, along with the time, destination, and lots of other goodies.

>I requested cisco and they started asking me CCO login, contract number etc 
>which I do not have.

Running VOIP on Cisco without a SmartNet contract is a dangerous proposition.  The images that support all of the VOIP features are not on the GD Track, so you'll need to upgrade a number of times to get more stable code as it is released.  In order to get those upgrades you need a SmartNet contract.  You should talk to the reseller you purchased the gear from about getting a SmartNet contract.


--
Daniel J McDonald
Principal Network Specialist
Digicon Technologies

Pots: 1.512.708.8448x25
FAX:  1.512.708.849
e-mail: dmcdonald at digicontech.com
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