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Question

High Error Output on Trunk Interface - Help Troubleshooting

Jun 6, 2019 9:47AM PDT

Hello everyone, new to the forum here!


We have three switches in our company, one of them is the core switch, and the other two is where our client PCs are connected. The switch core also has an ESXi Server connected to it, where all of our services are hosted. Additionally, we have a Cisco ASA Firewall connected to it. In order to monitor our interfaces and other devices/servers, we use Zabbix 4.0.


Everything was working normally, we hired +35 people, and everything is practically the same, however, we are getting alerts on Zabbix about high error rate on output interface Gi 1/0/22, this is one of the trunk ports which is connected to one of our non-core switches where end users are connected to. Sometimes we also receive alerts for interface 1/1/2 which is where our outside interface on the Cisco ASA is connected to, this last one goes away after some minutes, and it only pops-up from time to time.


However, our Gi 1/0/22 alert stays there for over an hour, then it goes away, and re-appears. The cabling of these interfaces was changed two days ago on a schedule where no people was working. The alert still pops up however reducing from an hour to 25-30 minutes. So, that might be an improvement, but I am still concerned about the alert. What other options do we have in order to troubleshoot this issue? Should I post an image of our interface?


I'd be eternally thankful for the help! Happy

Discussion is locked

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Answer
For this I'd be on the Zabbix forums.
Jun 6, 2019 10:09AM PDT

These appear to be at https://www.zabbix.com/forum

Why their forums? This forum is mostly consumer gear and while I did work Cisco products long ago, it's been over a decade now and even I would pick up the phone to talk to my Cisco engineering contact.

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Answer
Jun 6, 2019 10:41AM PDT

Hi, the reason im posting this here is because Zabbix only pops the alert, I want to troubleshoot my high error packet interface only.

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Why you would be on the Zabbix forum is
Jun 6, 2019 11:23AM PDT

Because other users are likely to be working with enterprise or such gear. Here you don't encounter many members that worked such before. And my experience is now dated.

Even so, because most of the work was when the Internet was just growing we used the old fashioned support systems. These still work today. For example if you suspect that the error is coming from your ESXi server, you talk to them. If you suspect some switch you talk to them.

Here's a thing I find today. The newest IT staffers don't want to make the support calls. These usually burn out the fastest as support from forums is lagged to non-existent at times. There is no shame in hitting the phones.

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Gosh
Jun 7, 2019 7:02AM PDT

I was just trying to get some help...gosh....

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I've seen that too.
Jun 8, 2019 11:43AM PDT

Some of the newer IT workers take offense when you go over how and where to get help. Getting directions in the desert to the next watering hole is helpful.