10-26-2009 07:47 PM
Hi All,
I use this H/W
System image file is "sup-bootdisk:s72033-ipservices_wan-mz.122-18.SXF5.bin"
cisco WS-C6504-E (R7000) processor (revision 2.0) with 983008K/65536K bytes of memory.
When doing snmpwalk using SNMP version 1 get response as follows:
[cacti@localhost cacti]# snmpwalk -v 1 -c MyString x.x.x.x .1.3.6.1.2.1.2.2.1.2
IF-MIB::ifDescr.1 = STRING: GigabitEthernet1/1
IF-MIB::ifDescr.2 = STRING: GigabitEthernet1/2
IF-MIB::ifDescr.3 = STRING: GigabitEthernet3/1
IF-MIB::ifDescr.4 = STRING: GigabitEthernet3/2
IF-MIB::ifDescr.5 = STRING: GigabitEthernet3/3
--- cut ---
But if use SNMP the version 2 , seems not responding (shown "Time Out")
[cacti@localhost cacti]# snmpwalk -v 2c -c MyString x.x.x.x .1.3.6.1.2.1.2.2.1.2
Timeout: No Response from x.x.x.x
Any idea is it because My Cat 6 doesn't support SNMP version 2, any advice?
Thanks&Regards,
sam
10-26-2009 07:51 PM
SNMPv2c is supported with no additional configuration. I don't know of any bugs which would cause this. If you enable "debug snmp packet" on the device then run the test, what output do you see?
10-26-2009 09:28 PM
Can you also post your show run?
10-28-2009 10:47 PM
Hi,
This is the current snmp config
Router1#sh ru | i snmp
snmp-server view v1default internet included
snmp-server view v1default at excluded
snmp-server view v1default ip.21 excluded
snmp-server view v1default ip.22 excluded
snmp-server community MyString1 RO 1
snmp-server community MyString2 RO 1
snmp-server community MyString3 view v1default RO 1
snmp-server community MyString4 RW 1
snmp-server trap-source VlanXX
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps casa
snmp-server enable traps tty
snmp-server enable traps bgp
snmp-server enable traps config
snmp-server enable traps dlsw
snmp-server enable traps frame-relay
snmp-server enable traps hsrp
snmp-server enable traps ipmulticast
snmp-server enable traps msdp
snmp-server enable traps rtr
snmp-server enable traps syslog
snmp-server enable traps dial
snmp-server enable traps entity
snmp-server enable traps rsvp
snmp-server enable traps envmon fan shutdown supply temperature status
snmp-server enable traps voice poor-qov
snmp-server host x.x.x.x MyString1
The backgorup of using the SNMP ver 2 is to configure our NMS-cacti in order to
support traffic monitoring more than 100 Mbps. The only solution that we need is to set snmp ver 2 ( which supports 64 bit).
Thanks&Regards,
Sam
10-29-2009 07:20 AM
What community string are you using now? I would strongly recommend you remove all the v1default view customizations. If you need a custom view, create a new one. Do not override v1default.
Also, can you post the output of "debug snmp packet" when reproducing this problem?
10-29-2009 07:14 PM
Hi,
I removed all v1 default as suggested, but snmp ver still wasn't not working.
If I issue this command:
"debug snmp packet"
How much utilization taken by this proccess?
Because the current unit is running on production.
Thanks&Regards,
Sam
10-29-2009 07:44 PM
It depends on the amount of SNMP traffic the device is receiving. If a lot of polling is being done, then it can increase device load substantially.
10-29-2009 08:12 PM
Hi,
Any other alternative solution? Since you confirmed that the current IOS is being used can still support snmp ver 2.
Thanks&Regards,
Sam
10-29-2009 08:33 PM
Without seeing how the packets are being interpreted by the switch, I cannot say why this is happening. I cannot reproduce internally. You might try increasing the SNMP timeout in your snmpwalk tool. Try 10 seconds to see if it makes a difference.
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