SNMP MIB OID repository: French CNRS CRIC

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SNMP MIB OID repository: French CNRS CRIC

#1 Post by Javik » Tue Aug 27, 2019 5:55 am

While doing Google searches on OIDs and MIBs, there are a number of sites that keep coming up. There is one in particular that seems to be extremely reliable and up-to-date, with exceptionally verbose documentation of various MIBs / OIDs. ... tils/MIBS/

Just paste an OID you are trying to understand without the leading period into the search box, and it will show an immense volume of useful information about that number. For example, ... ...

This also works with a resolved MIB name if you have a working set of MIBs for an SNMPwalk, to do a reverse lookup of the numbered OID. For example, dot1dBasePortDelayExceededDiscards ... ... edDiscards


Their MIB documentation is extensive, with the above lookup for providing description variants for IETF, Alcatel, Cisco, Dell, and something called, Force10- (which I don't know what that is or why the version is so important, but likely a device this organization uses).

IETF version from their page:
Module EtherLike-MIB (ietf)
Name dot3StatsFCSErrors
Access readonly
Status current
Syntax Counter32 (SNMPv2-SMI)
A count of frames received on a particular interface that are an integral number of octets in length but do not pass the FCS check. This count does not include frames received with frame-too-long or frame-too-short error.

The count represented by an instance of this object is incremented when the frameCheckError status is returned by the MAC service to the LLC (or other MAC user).

Received frames for which multiple error conditions pertain are, according to the conventions of IEEE 802.3 Layer Management, counted exclusively according to the error status presented to the LLC.

Note: Coding errors detected by the physical layer for speeds above 10 Mb/s will cause the frame to fail the FCS check.

For interfaces operating at 10 Gb/s, this counter can roll over in less than 5 minutes if it is incrementing at its maximum rate. Since that amount of time could be less than a management station's poll cycle time, in order to avoid a loss of information, a management station is advised to poll the dot3HCStatsFCSErrors object for 10 Gb/s or faster interfaces.

Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of ifCounterDiscontinuityTime.

And so, just who is this website? They are the French CNRS CRIC, or the Network and Common Computing Center, providing Internet access to the French National Center for Scientific Research ... ... ientifique
The French National Center for Scientific Research (French: Centre national de la recherche scientifique, CNRS) is the largest governmental research organisation in France and the largest fundamental science agency in Europe. In 2016, it employed 31,637 staff, including 11,137 tenured researchers, 13,415 engineers and technical staff, and 7,085 contractual workers. It is headquartered in Paris and has administrative offices in Brussels, Beijing, Tokyo, Singapore, Washington, D.C., Bonn, Moscow, Tunis, Johannesburg, Santiago de Chile, Israel, and New Delhi.

So, their easy-to-browse SNMP database is probably a reliable source of OID / MIB research information...

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Re: SNMP MIB OID repository: French CNRS CRIC

#2 Post by Osiris » Wed Aug 28, 2019 6:05 pm

Need to get the Cacti MIBs in there.
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