01-27-2019 02:50 AM - edited 03-08-2019 05:09 PM
We are having some issues with multiple drops on several interface on you 4510, please advice.
FastEthernet1/1 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2679693
FastEthernet1/2 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2668494
FastEthernet1/3 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2675094
FastEthernet1/4 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2672673
FastEthernet1/5 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 5039021
FastEthernet1/6 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2671220
FastEthernet1/7 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2677973
FastEthernet1/8 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2671614
FastEthernet1/9 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2667831
FastEthernet1/10 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2669575
FastEthernet1/11 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2675859
FastEthernet1/12 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 3772555
FastEthernet1/13 is up, line protocol is up (connected)
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 2669431
Solved! Go to Solution.
01-27-2019 09:17 AM
Hi,
Please answer the following question in order to understand;
1) Device Role?
2) it is downlink or uplinks?
3) Access interface or Trunk?
4) Connected end host devices?
5) Any special QoS configuration applied?
6) When do you start facing this issue and its new devices or old?
7) Did you check is there any broadcast storm in your network usually when broadcast devices are connected you will face a similar issue?
BR,
Tayyab - www.tayyabmunir.com
01-27-2019 09:38 AM
Hi Jhon,
I got you, The AG switch is receiving the high number of broadcast traffic coming from broadcast devices and a result the interface drop the packets after the TX buffer getting full.
Solution: Please trace the devices and drop the mac on the access device to stop the packets being sent.
Please don't forget to rate!
01-27-2019 06:34 AM
Hello,
what does the configuration look like, do you have any QoS configured ? Which IOS version are you running (post the output of 'sh ver') ?
01-27-2019 07:21 AM
01-27-2019 09:17 AM
Hi,
Please answer the following question in order to understand;
1) Device Role?
2) it is downlink or uplinks?
3) Access interface or Trunk?
4) Connected end host devices?
5) Any special QoS configuration applied?
6) When do you start facing this issue and its new devices or old?
7) Did you check is there any broadcast storm in your network usually when broadcast devices are connected you will face a similar issue?
BR,
Tayyab - www.tayyabmunir.com
01-27-2019 09:34 AM
Thanks
Jhon
01-27-2019 09:38 AM
Hi Jhon,
I got you, The AG switch is receiving the high number of broadcast traffic coming from broadcast devices and a result the interface drop the packets after the TX buffer getting full.
Solution: Please trace the devices and drop the mac on the access device to stop the packets being sent.
Please don't forget to rate!
01-27-2019 02:34 PM
01-27-2019 03:14 PM
What device was causing the broadcasts ? And how did you finally resolve this ?
01-29-2019 05:11 AM
HI,
We found TP-Link devices are connected with the 2960 switch and its generating huge Broadcast in the network, I drop the mac address of the TP-Link device and clear the counter so far everything is OK.
BR
Jhon
01-29-2019 05:25 AM
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