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SPS224G4 crash on show run when features enables over SNMP

vsamoilov
Beginner
Beginner

Hi.

I got SPS224G4 switch, on which I enable LLDP protocol over SNMP (using snmpset).

Now I can't do "show run" in cli - it crashes, then reboots:

How to replicate:

console# delete startup-config

<reboot>

console# conf term

console(config)# snmp-server enable

console(config)# snmp-server community secret1 rw

console(config)# exit

console# write

>snmpset -v2c -c secret1 <switch_ip> 1.3.6.1.4.1.3955.89.110.1.1.1.0 i 1

CISCOSB-LLDP-MIB::rlLldpEnabled.0 = INTEGER: true(1)

console# show run
interface range ethernet e(1-24)
shutdown
exit
No18-Nov-2008 12:41:40 %SYSLOG-F-OSFATAL:

FATAL ERROR: STSA: ABORT DATA exception

***** FATAL ERROR *****

SW Version  :  1.0.2.23
Version Date:  18-Nov-2008
Version Time:  12:38:16

Instruction            0x4D98F8
Exception vector       0x10
Program state register 0x60000013

**************************************************
*****************  SYSTEM RESET  *****************
**************************************************

10 REPLIES 10

alissitz
Enthusiast
Enthusiast

Any chance you can open a case?  You have already done an awesome job by documenting your lab and testing.

Many thanks

Andrew Lissitz

I don't have any support contract for this device - it's for my personal usage, so probably I can't. Maybe there is a FAQ or something on "open case" situation?

Is there a chance for new firmware? I have discovered even more SNMP bugs (this time with traps). I suppose that chances for a bugfix are very slim, but I always hope for the best

jdemmer
Beginner
Beginner

Hi,

I'm sorry for the late reply, didn't see this post before.

The SPS switches just don't support LLDP.

There is no command for LLDP in CLI or the WebUI.

So what happens is, that the switch gets a config via SNMP that is enabling a feature that the switch does not support - so it sees an invalid config and goes into a re-boot to get this fixed.

So it is working as expected ;-)

LLDP-MED is supported by the 300 series switches.LLDP & LLDP-MED.

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps10898/data_sheet_c78-610061.html

There are no plans to add this to the SPS switches.

Thanks!

Best Regards

Jens

Hi.

Better late than never, but you answer in not correct.

SPS224G4 do support LLDP and got LLDP engine in current firmware. If you execute simple commands I provided you with on nearest linux/unix box running net-snmp package, you will get LLDP engine on switch running, you will see neighbours in appropriate snmp OID, and neigbours will see SPS224G4. Only thing that will not work is "show run". I agree with you that there is no command in cli, and there is just no such text strings to print on console in firmware.

But can't this be fixed? It's not THAT hard to add some stub or several text strings to cli, considering that LLDP engine is already there, it's properly exposed and configurable via SNMP, and just simply works. If it's possible to add text or bypass to this config section to prevent crashing on "show run".

Thanks in advance,