[mrtg] Re: Catalyst 2600

[Andreas Nolte]

Hi,

you can use the following http address to get information which Mibs are supported by which Cisco device:

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

I attach the Mibs which are supported by the Cat2600 Switch.
I hope this helps you.

Regards

Andreas



On Tue, 19 Mar 2002 07:01:12 -0600
Rich Adamson <radamson at routers.com> wrote:

> 
> Comments in line...
> 
> > Here is my wish list for values on a Catalyst 2600,
> > 
> >  any one have the oid's for the following?
> > 
> > processor utilization
> 
> The 2600 does not rely on the processor to switch packets, therefore
> the processor utilization has little or no ongoing value. I don't
> believe an OID is actually provided by Cisco on this box.
> 
> > memory (volatile) utilization
> 
> Same as processor utilization. Switches do not buffer packets in memory,
> therefore memory utiliztion is of little or no value. Packet buffering
> on a layer-two box is basically done at the chip level, and then only
> very small numbers (typically one to four packets maximum).
> 
> > uptime
> > total bandwidth utilization
> 
> You'll need to add up all the utilization values for each port.
> 
> > total errors
> 
> Same, add up all errors for each of the ports.
> 
> > errors by type (collisions, runts, giants)
> 
> You'll need to activate and poll the RMON OID's for each catagory.
> 
> > bandwith by protocol (ip, ipsec, arp, routing (rip/eigrp/bgp))
> 
> Layer-two switches do not look past the MAC headers (for all practical
> purposes), therefore there are no OID's for the layer-three keywords
> that you've used above.
> 
> > ip bandwidth by service (mail, web, ftp, telnet, other)
> 
> Same as above, its a layer-two box not a layer-three or above. The
> switch is not aware of services passing through it.
> 
> On "any" layer-two box, the key performance indicators are Discarded
> Packets (inbound and outbound) and Error Packets (inbound and outbound)
> for each port. "If" the ports are operating in full-duplex mode, you
> don't even care about utilization; each port can run at a full 100%
> without impacting end-to-end performance as long as there are no 
> discarded packets.
> 
> If a port is operating in half-duplex mode, then packet errors are
> likely to actually be collisions, and you'll need to poll the basic
> RMON OIDs to determine if those are actually errors, collisions, out
> of spec ethernet, etc.
> 
> Rich
> 
> 
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******************

Andreas Nolte
Email: anolte at ccietac.de



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