Problem with SNMP on three equal Switche WS-C4510R

Unanswered Question
Mar 12th, 2010

Hello Cisco Support Community

I hope anyone can help us.

We have got three WS-C4510R in our company with equal Supervisories and we updated the IOS versions on Saturday, so that all IOS-versions are the same. But now, one of the three has a new OID number over SNMP for "Chassis Temperature Sensor" and we don't know why. It deliveres since Saturday no information to our monitoring systems because of the different OID. On the Cisco web page there exists no number enterprises.9.9.13.1.3.1.3.11 .

I attatched some informations at the end of this thread. I hope somebody can help me.

Thanks for your help.

Regards

Sven

-------------------------------------

Show version -- Switch 1:

Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-IPBASEK9-M), Version 12.2(53)SG1, RELEASE SOFTWARE (fc1)

Technical Support:

http://www.cisco.com/techsupport

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Fri 30-Oct-09 14:39 by prod_rel_team

Image text-base: 0x10000000, data-base: 0x11D20300

ROM: 12.2(20r)EW1

Dagobah Revision 226, Swamp Revision 34

...

...

cisco WS-C4510R (MPC8245) processor (revision 4) with 524288K bytes of memory.

Processor board ID xxxxx

MPC8245 CPU at 400Mhz, Supervisor V

Last reset from PowerUp

2 Virtual Ethernet interfaces

192 FastEthernet interfaces

56 Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

Configuration register is 0x2101

Show module -- Switch 1:

Chassis Type : WS-C4510R

Power consumed by backplane : 40 Watts

Mod Ports Card Type Model Serial No.

---+-----+--------------------------------------+------------------+-----------

2 2 Supervisor V 1000BaseX (GBIC) WS-X4516

3 48 100BaseFX (FX-MT) WS-X4148-FX-MT

4 48 100BaseFX (FX-MT) WS-X4148-FX-MT

5 48 100BaseFX (FX-MT) WS-X4148-FX-MT

6 48 100BaseFX (FX-MT) WS-X4148-FX-MT

7 6 1000BaseX (GBIC) WS-X4306

8 48 10/100/1000BaseT (RJ45) WS-X4548-GB-RJ45

M MAC addresses Hw Fw Sw Status

--+--------------------------------+---+------------+----------------+---------

2 0017.94ed.0002 to 0017.94ed.0003 4.0 12.2(20r)EW1 12.2(53)SG1 Ok

3 0014.a8d9.44c0 to 0014.a8d9.44ef 1.1 Ok

4 0014.a8d9.1910 to 0014.a8d9.193f 1.1 Ok

5 0014.a8d9.5360 to 0014.a8d9.538f 1.1 Ok

6 0014.a8d9.4a60 to 0014.a8d9.4a8f 1.1 Ok

7 0002.16e8.41a6 to 0002.16e8.41ab 2.0 Ok

8 0015.2ba0.66c0 to 0015.2ba0.66ef 2.1 Ok

Mod Redundancy role Operating mode Redundancy status

----+-------------------+-------------------+----------------------------------

2 Active Supervisor SSO Active

SNMP-Walk - Switch 1:

…:~# snmpwalk -v1 -c mrtgdata 10.2.254.6:161 .1.3.6.1.4.1.9.9.13.1

SNMPv2-SMI::enterprises.9.9.13.1.1.0 = INTEGER: 9

SNMPv2-SMI::enterprises.9.9.13.1.3.1.2.11 = STRING: "Chassis Temperature Sensor"

SNMPv2-SMI::enterprises.9.9.13.1.3.1.3.11 = Gauge32: 40

SNMPv2-SMI::enterprises.9.9.13.1.3.1.4.11 = INTEGER: 95

SNMPv2-SMI::enterprises.9.9.13.1.3.1.5.11 = INTEGER: 0

SNMPv2-SMI::enterprises.9.9.13.1.3.1.6.11 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.1 = STRING: "Chassis Fan Tray 1"

SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.2 = STRING: "Power Supply 1 Fan"

SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.3 = STRING: "Power Supply 2 Fan"

SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.1 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.2 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.3 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1 = STRING: "Power Supply 1"

SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.2 = STRING: "Power Supply 2"

SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.2 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.1 = INTEGER: 2

SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.2 = INTEGER: 2

SNMPv2-SMI::enterprises.9.9.13.1.6.0 = Hex-STRING: 00

-----------------------------------------------------------------------------------------------

show version -- Switch 2:

Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-IPBASEK9-M), Version 12.2(53)SG1, RELEASE SOFTWARE (fc1)

Technical Support:

http://www.cisco.com/techsupport

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Fri 30-Oct-09 14:39 by prod_rel_team

Image text-base: 0x10000000, data-base: 0x11D20300

ROM: 12.2(20r)EW1

Dagobah Revision 226, Swamp Revision 34

...

...

cisco WS-C4510R (MPC8245) processor (revision 4) with 524288K bytes of memory.

Processor board ID xxxxxxx

MPC8245 CPU at 400Mhz, Supervisor V

Last reset from Reload

1 Virtual Ethernet interface

192 FastEthernet interfaces

8 Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

Configuration register is 0x2101

Show module -- Swicth 2:

Chassis Type : WS-C4510R

Power consumed by backplane : 40 Watts

Mod Ports Card Type Model Serial No.

---+-----+--------------------------------------+------------------+-----------

1 2 Supervisor V 1000BaseX (GBIC) WS-X4516

3 48 100BaseFX (FX-MT) WS-X4148-FX-MT

4 48 100BaseFX (FX-MT) WS-X4148-FX-MT

5 48 100BaseFX (FX-MT) WS-X4148-FX-MT

6 48 100BaseFX (FX-MT) WS-X4148-FX-MT

7 6 1000BaseX (GBIC) WS-X4306-GB

M MAC addresses Hw Fw Sw Status

--+--------------------------------+---+------------+----------------+---------

1 0017.59cf.6240 to 0017.59cf.6241 4.0 12.2(20r)EW1 12.2(53)SG1 Ok

3 0014.a8d9.27e0 to 0014.a8d9.280f 1.1 Ok

4 0014.a8d9.17c0 to 0014.a8d9.17ef 1.1 Ok

5 0014.a8d9.4160 to 0014.a8d9.418f 1.1 Ok

6 0014.a8d9.5f60 to 0014.a8d9.5f8f 1.2 Ok

7 0015.630b.e430 to 0015.630b.e435 4.0 Ok

Mod Redundancy role Operating mode Redundancy status

----+-------------------+-------------------+----------------------------------

1 Active Supervisor SSO Active

SNMP-Walk -- Switch 2:

...:~# snmpwalk -v1 -c mrtgdata 10.2.254.8:161 .1.3.6.1.4.1.9.9.13.1

SNMPv2-SMI::enterprises.9.9.13.1.1.0 = INTEGER: 9

SNMPv2-SMI::enterprises.9.9.13.1.3.1.2.1 = STRING: "Chassis Temperature Sensor"

SNMPv2-SMI::enterprises.9.9.13.1.3.1.3.1 = Gauge32: 37

SNMPv2-SMI::enterprises.9.9.13.1.3.1.4.1 = INTEGER: 95

SNMPv2-SMI::enterprises.9.9.13.1.3.1.5.1 = INTEGER: 0

SNMPv2-SMI::enterprises.9.9.13.1.3.1.6.1 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.1 = STRING: "Chassis Fan Tray 1"

SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.2 = STRING: "Power Supply 1 Fan"

SNMPv2-SMI::enterprises.9.9.13.1.4.1.2.3 = STRING: "Power Supply 2 Fan"

SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.1 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.2 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.4.1.3.3 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1 = STRING: "Power Supply 1"

SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.2 = STRING: "Power Supply 2"

SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.2 = INTEGER: 1

SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.1 = INTEGER: 2

SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.2 = INTEGER: 2

SNMPv2-SMI::enterprises.9.9.13.1.6.0 = Hex-STRING: 00

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yjdabear Fri, 03/12/2010 - 09:25

The bolded 11 & 1 are not new OID numbers. Each is the unique* SNMP ifIndex number corresponding to a hardware entity (both happen to be "Chassis Temperature Sensor" in this case). Here's an article that explains it:

http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080157626.shtml

"* Unique" as in, to each catalyst 4500.

Since your post seems to say MRTG was working fine with the 4500s before the IOS upgrade, I'd venture a guess that you haven't had "snmp-server ifindex persist" configured on them. Without that config, the SNMP ifIndex changed as a result of the reboot following the IOS upgrade. If that's the case, you should configure that, if the new IOS code supports this global config. Of course, there's still the one-time update to MRTG to make it aware of the new ifIndex numbers.

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