Many thanks Fulko for explanation! Now everything is clear. This also helped me understand what I see when doing snmpwalk for example on Cisco devices. They use mentioned table and indexes in SNMP.
Best regards, Jan Janovic On 20.12.2014 17:15, Fulko Hew wrote: > On Sat, Dec 20, 2014 at 9:40 AM, Jan Janovic <jano...@orava.sk> wrote: >> Hello net-snmp community, >> >> I'm one of the main developers of the new EIGRP routing protocol daemon for >> Quagga routing suite. As we came to SNMP support implementation, we realized >> that to correctly get any of the SNMP values using particular OID, you need >> to add the mysterious ".0" at the end. >> >> So for example when I want to get OSPF Router ID, instead of using snmpget >> 1.3.6.1.2.1.14.1.1, I need to write snmpget 1.3.6.1.2.1.14.1.1.0. The same >> situation we can see in our fresh implementation in new daemon. So, it looks >> like there is problem somewhere beyond Quagga, probably in net-snmp >> libraries. >> >> Do anybody know something about this behaviour please? I'm just curious if >> it's a bug, or a feature :P > You need to consider the difference between the 'ID' of a variable or column, > and the specific 'instance' (index) of the variable of column spot in > the row of a table. > > And the full OID that you see/use is composed of the base value, appended with > the index info. > > When its a scalar variable, the instance is always zero. > When its in a table, its what ever the specific instance of all the > 'index' components are. > (normally indexes into table (rows) are never zero) Note that tables can have > multiple indexes, and non-interger indexes too. > > So in your case, the zero tells us this variable is a simple 'one-of' > variable, > and not a row/column slot in a table. > > Hope this clears it up. > > Fulko > ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Net-snmp-users mailing list Net-snmp-users@lists.sourceforge.net Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users
