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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...
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...
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...
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...
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.
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...
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 ...
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...
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...