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#61
Routing and Switching / Re: Switches incorrectly loadi...
Last post by deanwebb - June 06, 2024, 02:32:27 PMCisco can be very very picky about SNMP group names.
#62
Routing and Switching / Re: Switches incorrectly loadi...
Last post by config t - June 05, 2024, 04:47:27 PMNice 
my group and view names are all caps and I had (very) briefly considered at least lower-casing the views since that's the part that always breaks.
I am now deeply suspicious..
*Edit
NETOPS team is going to love me if this is the issue.. their Solarwinds SNMP groups are always breaking and wouldn't ya know it.. those views are all caps as well.
my group and view names are all caps and I had (very) briefly considered at least lower-casing the views since that's the part that always breaks.I am now deeply suspicious..
*Edit
NETOPS team is going to love me if this is the issue.. their Solarwinds SNMP groups are always breaking and wouldn't ya know it.. those views are all caps as well.
#63
Routing and Switching / Re: Switches incorrectly loadi...
Last post by deanwebb - June 05, 2024, 09:45:39 AMFound this from 2009:
"I changed the view name to all lower case as well as the group name, and now the settings stick after a reboot. Weird...
Thanks for your help!"
https://community.cisco.com/t5/network-management/snmp-v3-broken-after-reboot/td-p/1346995
"I changed the view name to all lower case as well as the group name, and now the settings stick after a reboot. Weird...
Thanks for your help!"
https://community.cisco.com/t5/network-management/snmp-v3-broken-after-reboot/td-p/1346995
#64
Routing and Switching / Re: Switches incorrectly loadi...
Last post by config t - June 04, 2024, 08:15:15 PMPossible. It's not consistent across the couple hundred switches, and only happens during a rare power outage, when NETOPS reboots for maintenance reasons, and more often on one of the enclaves that has a lot of reboots due to operational stuff and things.
Right now it's only producing a minor effect on discovery, but when we start doing no shit NAC infrastructure actions it's potentially going to be an issue. For that reason I am going to ask them to open a TAC.
One of the guys mentioned we can add strings to the call home sequence that runs after startup so I may have them add the following and see if it helps:
That will purge both the existing and duplicate group and then reconfigure it.
Code Select
show archive log config alltells me it always happens during or after the startup sequence. My best guess is a bug, because I can see the string in there and it's correct.Right now it's only producing a minor effect on discovery, but when we start doing no shit NAC infrastructure actions it's potentially going to be an issue. For that reason I am going to ask them to open a TAC.
One of the guys mentioned we can add strings to the call home sequence that runs after startup so I may have them add the following and see if it helps:
Code Select
no snmp-server group <group> v3 priv
no snmp-server group <group> v3 auth
snmp-server group <group> v3 auth read <view> write <view>That will purge both the existing and duplicate group and then reconfigure it.
#65
Routing and Switching / Re: Switches incorrectly loadi...
Last post by deanwebb - June 04, 2024, 08:39:00 AMWould those 10 be in a line that goes from your facility to the Internet, possibly through an Internet access method you're currently not aware of?
That's my first reaction, somebody touched them in an evil way and that's the evidence you're seeing.
That's my first reaction, somebody touched them in an evil way and that's the evidence you're seeing.
#66
Certifications and Careers / Re: I want to learn Routing (O...
Last post by deanwebb - June 04, 2024, 08:34:49 AMQuote from: kannies on June 03, 2024, 10:05:09 AMOptimal Routing Design by Russ White is a timeless resource also.
Quoting for truth.
Also hello thar!
#67
Routing and Switching / Switches incorrectly loading S...
Last post by config t - June 03, 2024, 09:13:06 PMAs the subject says. When the switches reboot they create a duplicate SNMP group that is missing the read and write views. I'm having to go in and delete the identical group on around 10 switches per day. Seems to only affect 9300 and 3850's.
Haven't been able to find anything other than a couple vague messages on Cisco support that trailed off on dead ends.
Haven't been able to find anything other than a couple vague messages on Cisco support that trailed off on dead ends.
#68
Forum Lobby / Re: Cisco Live 2024
Last post by config t - June 03, 2024, 05:40:34 PMWe sent a contingent but I wasn't on the list. Would have been great to chat!
#69
Certifications and Careers / Re: I want to learn Routing (O...
Last post by kannies - June 03, 2024, 10:05:09 AMOptimal Routing Design by Russ White is a timeless resource also.
#70
Forum Lobby / Cisco Live 2024
Last post by Otanx - May 29, 2024, 09:48:06 AMStarts this weekend. Anyone else going? If so we can try to do a forum meet somewhere. I am also a local so if you have questions about what to do or where to go feel free to ask.
-Otanx
-Otanx