[mrtg] Re: Monitoring 5G bps network

[Simon Leinen]

>>>>> "td" == Travis Dawson <tdawson at bluemartini.com> writes:
> You can also try the MIBS that come with some routers and switches,
> For the OC48's that go into foundrys networks gear (and they have an oc192 now)

> .1.3.6.1.4.1.1991.1.1.3.3.1.1.40

> This is a 64 bit counter, and using GetIF you can find the 64 bit counters 
> for Cisco and Extreme equipment also.

They may LOOK like 64 bit counters, but they wrap after 2^32-1.  The
same is true for the ordinary 64-bit octet counters (ifHCInOctets
etc.).  Here's what I see when I poll a Foundry NetIron POS OC-48c
interface, which carries ~97 Mb/s, at ten-second intervals:

$ while true; do MIBS= snmpget -v 2c ez3 XXX .1.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 .1.3.6.1.2.1.31.1.1.1.6.65; sleep 10; done
[...]
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 EF 3B F8 07 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 4013686261
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 F1 C9 C5 41 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 4056532289
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 F4 56 9E FE 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 4099317502
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 F6 E3 BA 45 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 4142121011
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 F9 75 3B 55 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 4185209685
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 FC 03 52 48 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 4228077622
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 FE 92 79 8E 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 4271013756
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 01 D2 16 B2 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 30548622
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 04 5F BF 45 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 73385267
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 06 ED 91 81 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 116234095
.iso.3.6.1.4.1.1991.1.1.3.3.1.1.40.769 =  Hex: 00 00 00 00 09 7D 6D E1 
.iso.3.6.1.2.1.31.1.1.1.6.65 = Counter64: 159218109
[...]

This should be reported to Foundry as a bug.  I would do it myself but
we only received our NetIron this week and I haven't found out about
the support procedures yet.
-- 
Simon Leinen				       simon at babar.switch.ch
SWITCH				   http://www.switch.ch/misc/leinen/

	    Who is General Failure & why's he reading my disk?

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