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- Newsgroups: comp.protocols.snmp
- Path: sparky!uunet!gatech!darwin.sura.net!spool.mu.edu!agate!ames!Dell486.TGV.COM!karl
- From: karl@empirical.com (Karl Auerbach)
- Subject: Re: Cabletron not doing get-next properly?
- Message-ID: <karl.1.725767364@empirical.com>
- Sender: usenet@news.arc.nasa.gov
- Organization: Empirical Tools and Technologies
- References: <C01psE.4n1@unixhub.SLAC.Stanford.EDU>
- Date: Thu, 31 Dec 1992 02:02:44 GMT
- Lines: 34
-
- In article <C01psE.4n1@unixhub.SLAC.Stanford.EDU> streater@unixhub.SLAC.Stanford.EDU (Tim Streater) writes:
- >From: streater@unixhub.SLAC.Stanford.EDU (Tim Streater)
- >Subject: Cabletron not doing get-next properly?
- >Date: Wed, 30 Dec 1992 00:09:50 GMT
- >In article <karl.37.725592903@empirical.com>, karl@empirical.com (Karl Auerbach)
- >
- >says:
- >>
- >>Also check that get next really works. It should be able to take *any* oid,
- >>whether or not that oid represents a variable, and finds the sucessor (or
- >>end of the mib.)
- >>
- >I wrote some code to get the ARP tables using SNMP. I start by doing a get-next
- >on mgmt_mib_ip_ipNetToMediaTable_ipNetToMediaEntry_ipNetToMediaPhysAddress, and
- >I look at the type of the returned variable. If it is STRING I know the unit
- >supports MIB-II so I use those variables. Otherwise I assume it does not and I
- >use the MIB-I at table.
- >
- >I tested this against various boxes (nodes, routers, etc), and found that the
- >Cabletron MRXI 10Base-T hub, which supports MIB-I, appears to fail in its
- >treatment of get-next. It returns NoSuchVariable for the get-next I outlined
- >above.
- >
- >Anybody else seen this? Does Cabletron know about it?
-
- Yes, I've seen this. I've reported it to Cabletron. They say they are
- fixing it.
-
- The way that I observed the symptoms was to do a get-next query for one of
- the variables which is in the MIB-II system group, but not in the MIB-I
- system group (e.g. sysContact). I received a noSuch in return rather than
- rolling over into the interfaces group (which did exist).
-
- --karl--
-