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1800-24G SNMP port counters

Occasional Visitor

1800-24G SNMP port counters

I've got 10 Procurve 1800-24G switches. I'm trying to use Cacti to monitor the port counters but they all return only the last 12 ports (13-24) and refuse to notice that 1-12 also exist.

I've tried using snmpwalk and it returns the same thing.

We've got the management VLAN for those switches on 112, and I don't think it's a coincidence that this is the first index that's reported from SNMP.

I reset a switch to defaults, put it on vlan 112 and snmpwalked it, it showed this problem. I set the management VLAN to 1 and set an appropriate IP address for that VLAN and it showed all 24 ports again like you'd expect.

$ snmpwalk -v 1 -c public SWITCHIP ifDescr
IF-MIB::ifDescr.112 = STRING: IP Interface
IF-MIB::ifDescr.113 = STRING: Port #13
IF-MIB::ifDescr.114 = STRING: Port #14
IF-MIB::ifDescr.115 = STRING: Port #15
IF-MIB::ifDescr.116 = STRING: Port #16
IF-MIB::ifDescr.117 = STRING: Port #17
IF-MIB::ifDescr.118 = STRING: Port #18
IF-MIB::ifDescr.119 = STRING: Port #19
IF-MIB::ifDescr.120 = STRING: Port #20
IF-MIB::ifDescr.121 = STRING: Port #21
IF-MIB::ifDescr.122 = STRING: Port #22
IF-MIB::ifDescr.123 = STRING: Port #23
IF-MIB::ifDescr.124 = STRING: Port #24

It seems to show the IP Interface at ifDescr.Management_VLAN and not show and ports after that index. In this case it's .112 which should be for port 12. Port 12 has nothing to do with the management VLAN, it's not on that VLAN and it's not even plugged into anything.

I've tried the most recent firmware and it's made no difference.

Any ideas?