jimson[root]:~ # cat /var/log/zabbix/server.log | g snmp_get_index
[skip]
59545:20101106:233211.258 In snmp_get_index() oid:'1.3.6.1.2.1.2.2.1.2' value:'{$IFDESCR1}' <--- error
[skip]
59547:20101106:233213.344 In snmp_get_index() oid:'1.3.6.1.2.1.2.2.1.2' value:'FastEthernet0/3' <-- correct {$IFDESCR3}
59547:20101106:233214.359 In snmp_get_index() oid:'1.3.6.1.2.1.2.2.1.2' value:'FastEthernet0/1' <-- correct {$IFDESCR1}
[skip]
59546:20101106:233226.502 In snmp_get_index() oid:'1.3.6.1.2.1.2.2.1.2' value:'{$IFDESCR1}' <-- error
[skip]
59547:20101106:233228.517 In snmp_get_index() oid:'1.3.6.1.2.1.2.2.1.2.3' value:'FastEthernet0/3' <-- correct {$IFDESCR3}
59547:20101106:233229.527 In snmp_get_index() oid:'1.3.6.1.2.1.2.2.1.2.1' value:'FastEthernet0/1' <-- correct {$IFDESCR1}
[skip]
59545:20101106:233231.568 In snmp_get_index() oid:'1.3.6.1.2.1.2.2.1.2' value:'{$IFDESCR3}' <-- error

Corrent substitute:

60153:20101106:235207.547 In substitute_simple_macros (data:'ifHCOutOctets[{$IFDESCR3}]')
60153:20101106:235207.547 In zbxmacros_get_value() macro:'{$IFDESCR3}'
60153:20101106:235207.547 In zbxmacros_get_value_hosts() macro:'{$IFDESCR3}'
60153:20101106:235207.548 zbxmacros_get_value_hosts() hostid:100100000010059
60153:20101106:235207.548 Query [txnlev:0] [select macro,value from hostmacro where hostid=100100000010059]
60153:20101106:235207.549 Query [txnlev:0] [select templateid from hosts_templates where hostid=100100000010059]
60153:20101106:235207.550 In zbxmacros_get_value_hosts() macro:'{$IFDESCR3}'
60153:20101106:235207.550 zbxmacros_get_value_hosts() hostid:100100000010047
60153:20101106:235207.550 zbxmacros_get_value_hosts() hostid:100100000010049
60153:20101106:235207.550 Query [txnlev:0] [select macro,value from hostmacro where hostid=100100000010049]
60153:20101106:235207.551 Query [txnlev:0] [select templateid from hosts_templates where hostid=100100000010049]
60153:20101106:235207.552 zbxmacros_get_value_hosts() hostid:100100000010061
60153:20101106:235207.552 Query [txnlev:0] [select macro,value from hostmacro where hostid=100100000010061]
60153:20101106:235207.553 Query [txnlev:0] [select templateid from hosts_templates where hostid=100100000010061]
60153:20101106:235207.554 zbxmacros_get_value_hosts() replace_to:'FastEthernet0/3'
60153:20101106:235207.554 End of zbxmacros_get_value_hosts():SUCCEED
60153:20101106:235207.554 End of zbxmacros_get_value_hosts():SUCCEED
60153:20101106:235207.554 End of zbxmacros_get_value()
60153:20101106:235207.554 End substitute_simple_macros (result:'ifHCOutOctets[FastEthernet0/3]')

Have lost a template 100100000010061 by macro search:
60150:20101106:235210.638 In substitute_simple_macros (data:'1.3.6.1.2.1.31.1.1.1.11["index", "1.3.6.1.2.1.2.2.1.2", "{$IFDESCR3}"]')
60150:20101106:235210.638 In zbxmacros_get_value() macro:'{$IFDESCR3}'
60150:20101106:235210.638 In zbxmacros_get_value_hosts() macro:'{$IFDESCR3}'
60150:20101106:235210.638 zbxmacros_get_value_hosts() hostid:100100000010059
60150:20101106:235210.639 In zbxmacros_get_value_hosts() macro:'{$IFDESCR3}'
60150:20101106:235210.639 zbxmacros_get_value_hosts() hostid:100100000010047
60150:20101106:235210.639 zbxmacros_get_value_hosts() hostid:100100000010049
60150:20101106:235210.639 End of zbxmacros_get_value_hosts():FAIL
60150:20101106:235210.639 End of zbxmacros_get_value_hosts():FAIL
60150:20101106:235210.639 In zbxmacros_get_value_global() macro:'{$IFDESCR3}'
60150:20101106:235210.639 End of zbxmacros_get_value()