Hi, I have a Cisco switch which SNMP agent returns up to 256 characters long interface descriptions(ifAlias). For example here I receive an 100 characters long interface description:
$ snmpget -m ./IF-MIB_tmp -M /usr/share/snmp/mibs/ -M /usr/local/share/snmp/mibs/ -Ov -v 2c -c public switch IF-MIB::ifAlias.53 STRING: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx $ However, DisplayString SIZE in MIB files is 64 characters: $ grep -A 5 -i "^ifalias" ./IF-MIB_tmp /usr/share/snmp/mibs/* /usr/local/share/snmp/mibs/* ./IF-MIB_tmp:ifAlias OBJECT-TYPE ./IF-MIB_tmp- SYNTAX DisplayString (SIZE(0..64)) ./IF-MIB_tmp- MAX-ACCESS read-write ./IF-MIB_tmp- STATUS current ./IF-MIB_tmp- DESCRIPTION ./IF-MIB_tmp- "This object is an 'alias' name for the interface as -- /usr/share/snmp/mibs/mib-rfc2863a.txt:ifAlias OBJECT-TYPE /usr/share/snmp/mibs/mib-rfc2863a.txt- SYNTAX DisplayString (SIZE(0..64)) /usr/share/snmp/mibs/mib-rfc2863a.txt- MAX-ACCESS read-write /usr/share/snmp/mibs/mib-rfc2863a.txt- STATUS current /usr/share/snmp/mibs/mib-rfc2863a.txt- DESCRIPTION /usr/share/snmp/mibs/mib-rfc2863a.txt- "This object is an 'alias' name for the interface as $ I expected that snmpget displays the number of characters defined with DisplayString SIZE parameter, e.g first 64 "x" characters. Does DisplayString SIZE affect the output of snmpget? If it does, then how? Or is the DISPLAY-HINT parameter the only one which actually changes the output of SNMP GetResponse values? thanks, Martin ------------------------------------------------------------------------------ _______________________________________________ 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
