[f-nsp] Measurement of BigIron virtual interfaces

[Sam Stickland]

On Mon, 25 Oct 2004, Ray Taft wrote:

> No, you can not monitor a VE interface. It will report back zero usage.
> Bummer, I know.
>
> Ray
>

That is indeed a pain.

Does anyone know if the lack of VE interface counters is a hardware 
problem? Does it change with a VM-1 card installed?

I've started looking at how to extract the information from sFlow, but 
annoyingly I can't even seem to get sFlow exporting working.

SSH at foundry1#sh run | inc sflow
sflow enable
sflow sample 512
sflow polling-interval 30
sflow destination w.x.y.z

SSH at foundry1#conf t
SSH at foundry1(config)#int e1/3
SSH at foundry1(config-if-e1000-1/3)#sflow forwarding
SSH at foundry1(config-if-e1000-1/3)#exit
SSH at foundry1(config)#exit

SSH at foundry1#sh sflow
sFlow services are enabled.
sFlow agent IP address: 10.134.221.4
Collector IP w.x.y.z, UDP 6343
Polling interval is 30 seconds.
Configured default sampling rate: 1 per 512 packets.
Actual default sampling rate: 1 per 512 packets.
0 UDP packets exported
0 sFlow samples collected.
No ports configured for sFlow sampling.
Module Sampling Rates

SSH at foundry1#sh run int e1/3
!Building configuration...
!Current configuration : 47 bytes
interface ethernet 1/3
  port-name Gi0/1 Net1
!

So basically it's just ignoring the sFlow port configuration. I've read 
through the Foundry docs and can't seem to figure out why. The interface 
e1/3 is one of the GE ports on the B4GMR4 card, and the box is running 
07.7.01T53 (B2R07701).

Feels like I'm missing something very obvious, but I can't see what.

Sam

> -----Original Message-----
> From: foundry-nsp-bounces at puck.nether.net
> [mailto:foundry-nsp-bounces at puck.nether.net] On Behalf Of Jonas Frey
> Sent: Monday, October 25, 2004 12:07 PM
> To: Cliff Fogle
> Cc: foundry-nsp at puck.nether.net
> Subject: RE: [f-nsp] Measurement of BigIron virtual interfaces
>
> Hi,
>
> please bare in mind: sflow is only supported on the jetiron m4 boards,
> not on the (old) ironcore ones.
> I dont know about ve monitoring/accounting.
>
> Btw, i got some foundry equipment to sell...if anyone is interessted:
> B2P622-SM-IR
> M4R4G (somehow defective, tends to crash when running bgp/using alot of
> routes)
>
>
> Regards,
> Jonas
>
> On Mon, 2004-10-25 at 18:57, Cliff Fogle wrote:
>> NTOP kind of has sflow support.  It really only gives 'top talkers'
>> info.  The best thing out there at this time is really InMon's traffic
>> server:
>>
>> http://www.inmon.com/products/trafficserver.php
>>
>> (warning:  There is a free demo avaialble and it's addictive)
>>
>> Foundry is apparently building much better sflow support into INM 1.8,
>> but I have yet to see anything other than a PowerPoint mock up of it.
>>
>> -----Original Message-----
>> From: foundry-nsp-bounces at puck.nether.net
>> [mailto:foundry-nsp-bounces at puck.nether.net] On Behalf Of Sam Stickland
>> Sent: Monday, October 25, 2004 6:47 AM
>> To: foundry-nsp at puck.nether.net
>> Subject: [f-nsp] Measurement of BigIron virtual interfaces
>>
>> Hi,
>>
>> Is it possible to measure the virtual interface bandwidth stats on the
>> BigIrons (Mmgt4)? I notice that the interface OID's appear to be
>> readable but the counters never seem to increment (running 07.7.01T53)
>>
>> Can this information be read via SNMP. If not, a cursorsy glance at the
>> sFlow specs seems to suggest is it possible to measure this information
>> using sFlow. If so are there any opensource or reasonably lightweight
>> tools that can process the information in this regard?
>>
>> Thanks,
>>
>> Sam
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