9 Posts
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5767
Switch is dropping all data - HW drops
Hi I have an application which is sending data(FAST) to from pc to HW. It works fine. However when I have this Z9100-on switch between HW and pc, the switch is stopping the data. I have tried various settings with flow control and storm control but it doesn't help.
If I print the 'show hardware drops interface' of the interface, I cans see that Ingress Drops,Packets dropped by FP, and Port bitmap zero Drops increase by for example 1000 if I send 1000 packets.
Do you have any tips how to fix this problem ? Is this a HW buffering issue. What can I do to fix this ?
Drops in Interface Hu ...:
Ingress Drops : 468574 IBP CBP Full Drops : 0 PortSTPnotFwd Drops : 0 IPv4 L3 Discards : 0 Policy Discards : 1864 Packets dropped by FP : 131709 (L2+L3) Drops : 0 Port bitmap zero Drops : 468574 Rx VLAN Drops : 21 --- Ingress MAC counters--- Ingress FCSDrops : 0
thanks for your time.
Mic77
9 Posts
0
June 11th, 2019 09:00
Hi,
This problem is now solved for me.
The issue was that the data we are sending needed to have a valid source mac.
Thanks
DELL-Josh Cr
Moderator
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8.7K Posts
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May 28th, 2019 09:00
Hi,
What OS version is the switch on? How is the port configured? Are there any ACLs that would block traffic?
Mic77
9 Posts
0
May 28th, 2019 23:00
interface definition
There is nothing configured that would block traffic.
DELL-Josh Cr
Moderator
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8.7K Posts
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May 29th, 2019 09:00
What speed is the PC NIC, is it also 100G?
Mic77
9 Posts
0
May 31st, 2019 03:00
Yes that is not the problem.
It would be good if there is some explanation for those drop counters.
isnuryusuf
6 Posts
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May 31st, 2019 08:00
Its really hard to find documentation related to "show hardware drops interface tengigabitethernet x/x" output
iam facing same issue btw
DELL-Josh Cr
Moderator
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8.7K Posts
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May 31st, 2019 09:00
Can you private message me the service tag?
isnuryusuf
6 Posts
0
May 31st, 2019 23:00
isnuryusuf
6 Posts
0
June 3rd, 2019 07:00
no hope, event we only asking about the documentation related to output command, i think i will stop to use dell force10, so sad
Mic77
9 Posts
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June 5th, 2019 00:00
this problem is still unresolved as there has been no reply to my latest questions.
isnuryusuf
6 Posts
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June 9th, 2019 03:00
better we forgeted @Mic77 :)
SuperZONG
1 Message
0
November 19th, 2019 19:00
Could you share your solution for me ? thanks a lot~~
my email:
Mic77
9 Posts
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November 20th, 2019 04:00
I did share the solution.
When we were sending data directly to Device without switch, it was working...
Via switch, it was dropping all the data...
The reason was that MAC address in our data was illegal. So the solution was to make sure that source mac in data is a valid one...The problem is with your data...
dendob
20 Posts
0
January 10th, 2022 02:00
hey @Mic77 , sorry to revive this old thread, but how did you discover that it was a bad MAC address? I am running into similar issues, but I cant find in any location where to dive deeper into the DELL switch on why the drops happen. Or did you use an external wireshark or likewise to see what was happening wrongly?
Kind Regards