Hi, "gsed -r "s/IF-MIB::ifDescr.([0-9]+) .*/\1/"" part is to make sure that I get the ifIndex of the physical interface and not the sub-interface like "GigabitEthernet5/26.123".
Isn't that achieved by the "$" in grep -E "GigabitEthernet5/26$" Some further information would be welcome in order to be able to answer your question. Platform ? Language ? is PERL an option ? AWK seems the most appropriate when I see your example. Example : [jur466@nocu07 ~]$ snmpwalk -c MyCS MySwitch 1.3.6.1.2.1.2.2.1.2 .1.3.6.1.2.1.2.2.1.2.1 = STRING: GigabitEthernet0/0 .1.3.6.1.2.1.2.2.1.2.2 = STRING: Null0 .1.3.6.1.2.1.2.2.1.2.3 = STRING: GigabitEthernet1/0/1 .1.3.6.1.2.1.2.2.1.2.4 = STRING: GigabitEthernet1/0/2 .1.3.6.1.2.1.2.2.1.2.5 = STRING: GigabitEthernet1/0/3 .1.3.6.1.2.1.2.2.1.2.6 = STRING: GigabitEthernet1/0/4 Removed lines .1.3.6.1.2.1.2.2.1.2.29 = STRING: GigabitEthernet1/0/27 .1.3.6.1.2.1.2.2.1.2.30 = STRING: GigabitEthernet1/0/28 .1.3.6.1.2.1.2.2.1.2.31 = STRING: GigabitEthernet1/0/29 .1.3.6.1.2.1.2.2.1.2.32 = STRING: GigabitEthernet1/0/30 .1.3.6.1.2.1.2.2.1.2.33 = STRING: GigabitEthernet1/0/31 .1.3.6.1.2.1.2.2.1.2.34 = STRING: GigabitEthernet1/0/32 Removed lines Then [jur466@nocu07 ~]$ snmpwalk -c MyCS MySwitch 1.3.6.1.2.1.2.2.1.2 | grep GigabitEthernet1/0/3$ .1.3.6.1.2.1.2.2.1.2.5 = STRING: GigabitEthernet1/0/3 ==>> does not return GigabitEthernet1/0/3x [jur466@nocu07 ~]$ Split the line .1.3.6.1.2.1.2.2.1.2.5 = STRING: GigabitEthernet1/0/3 By "=" Removes spaces => .1.3.6.1.2.1.2.2.1.2.5 Spilt by "." (dot) The last element of the table is the index Regards JMJ -----Message d'origine----- De : Martin T [mailto:m4rtn...@gmail.com] Envoyé : mardi, 12. mai 2015 17:45 À : net-snmp-users@lists.sourceforge.net Objet : find SNMP ifIndex value if hostname and SNMP ifDescr are known Hi, Is there a clever method to find out the SNMP ifIndex value if I know the hostname of the network device and ifDescr for this particular interface? At the moment I do it like this: snmpwalk -v 2c -c public router ifDescr | grep -E "GigabitEthernet5/26$" | gsed -r "s/IF-MIB::ifDescr.([0-9]+) .*/\1/" "router" is the hostname and "GigabitEthernet5/26" is the ifDescr. "gsed -r "s/IF-MIB::ifDescr.([0-9]+) .*/\1/"" part is to make sure that I get the ifIndex of the physical interface and not the sub-interface like "GigabitEthernet5/26.123". thanks, Martin ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ 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 ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ 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
