[mrtg] Discrepancy in interface OID versus frame relay traffic OID resul ts

[SHOLAAS Margaret G]

I have a small 3COM router with an ethernet on interface 1 and a single
frame relay connection using DLCI 16 on interface 2. In MRTG's mibhelp.html
I found these traffic OIDs:

ifInOctets (1.3.6.1.2.1.2.2.1.10.x) inbound traffic on interface x
frInOctets (1.3.6.1.2.1.10.32.2.1.9.x.y) inbound FR traffic on interface x
DLCI y
 
ifOutOctets (1.3.6.1.2.1.2.2.1.16.x) outbound traffic on interface x
frOutOctets (1.3.6.1.2.1.10.32.2.1.7.x.y) outbound FR traffic on interface x
DLCI y

Since there is only one DLCI on interface 2, I figured that no matter
whether I used the interface OID or the frame relay OID, I should get the
same graph, and that is, in fact, what I see for inbound traffic. But with
outbound traffic, the values from the frame relay OID are slightly larger,
about 5%, than the interface OID.

Does this look like a bug in the 3COM's MIB-2 implementation to you folks?
Can anyone think of any other reason why this might be this way?

Much thanks,

Margaret Sholaas, System Programmer
Regional Information System (a department of Lane County)
125 E. 8th Ave.
Eugene, OR  97401

VOICE (541) 682-4565
FAX (541) 682-2345
EMAIL Margaret.G.SHOLAAS at RIS.Lane.OR.US

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