About AllertGen

AllertGen · 04-02-2017

Hello, everyone. Does anyone can help with troubleshooting problem with output packet drops at the 3850 switch? The problem is that I see a lot of packet drops at the some interfaces at the low traffic rate (maximum is 100 Mbits at the 1G ports). Gig...

AllertGen · 11-03-2016

Hello, everyone.Because of solution of our system engineers I’m hitting a problem with network design. We’re planning to do a second DC and our system engineers want to aggregate blade systems at both DC to one cluster. So I need to find a solution t...

AllertGen · 09-21-2016

Hello everyone. I'm using a flexible netflow for analyzing connections for security matters. But I have a lot of false allarms because my device sends netflow data before the flow itself is end. So I tryed to tune cache parameters to store data at t...

AllertGen · 07-01-2016

Hello everyone. Is it possible to add tag to syslog messages that is sending to external syslog server by Cisco device? Best Regards.

AllertGen · 01-31-2016

Hello, everyone. At my router I have 2 ISP connections (Internet). And I'm trying to connect this router by 2 DmVPN clouds to my central Hub. Because I want them 2 works at the some time I put 1 of the interfaces (backup ISP) to the front-VRF (becau...

AllertGen · 04-19-2017

Hi, c.edel. Sorry for a long responce. I see drops in both cases: when I'm using service-policy and when I'm not. But when I'm using it I see drops at the queue 0 and when I'm not using it I see drops at queue 1. Best Regard.

AllertGen · 04-12-2017

Hi, Cris. The IOS version is 03.06.06. Current changes of QoS is: qos queue-softmax-multiplier 1200ip access-list extended allTraffic remark --- ACL for matching all traffic --- permit ip any anyclass-map match-any cDefQos match access-group name all...

AllertGen · 04-05-2017

Hi, Chris. Thanks for you reply. I did saw this document. But it says this: Output drops are generally a result of interface oversubscription caused by many to one or a 10gig to 1gig transfer. But in my case I can see 150k packets drop rate at the ...

AllertGen · 04-04-2017

I solved problem with all interfaces except interfaces Gi1/0/26 and gi2/0/26. Counters rising only at this 2 interfaces. I placed service-policing to this interfaces but it din't changed anything. Does anyone have any ideas? I'm bad at QoS questions...

AllertGen · 04-03-2017

Ok. My resaults so far: Looks like problem connected with QoS. Seems like Cisco changed queues settings at the newest versions of IOS. As I see the second queue (data traffic) at the port is dropping traffic: #show platform qos queue stats gi 1/0/26D...

Member Since	‎07-31-2012 11:39 AM
Date Last Visited	‎10-12-2018 12:22 AM
Posts	247
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Output packet drops at the 3850

Sharing L2 between two DC

Problem with flexible NetFlow and flows cache

Tag in syslog messages

Front-VRF and NAT

Hi, c.edel.

Hi, Cris.

Hi, Chris.

I solved problem with all

Ok. My resaults so far: