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MauricioUsatai
1 Nickel

PowerConnect 6224 Switch Discarding Frames

Hello,

I have a PowerConnect 6224 which is discarding a lot of inbound frames on port gi 24 (uplink). There is no clue about the discardings since no other counters are being incremented.

Packet loss is reaching the 5%!

Here's the output of the show statistics ethernet 1/g24:

Total Packets Received (Octets)................ 8971636507
Packets Received 64 Octets..................... 387595         
Packets Received 65-127 Octets................. 10667154       
Packets Received 128-255 Octets................ 362417         
Packets Received 256-511 Octets................ 390612         
Packets Received 512-1023 Octets............... 357378         
Packets Received 1024-1518 Octets.............. 268171         
Packets Received > 1518 Octets................. 4680029        
Packets RX and TX 64 Octets.................... 387595         
Packets RX and TX 65-127 Octets................ 13222424       
Packets RX and TX 128-255 Octets............... 457964         
Packets RX and TX 256-511 Octets............... 626701         
Packets RX and TX 512-1023 Octets.............. 625880         
Packets RX and TX 1024-1518 Octets............. 391206         
Packets RX and TX 1519-2047 Octets............. 5434576        
Packets RX and TX 2048-4095 Octets............. 0              
Packets RX and TX 4096-9216 Octets............. 0              

Total Packets Received Without Errors.......... 17113356       
Unicast Packets Received....................... 6857809        
Multicast Packets Received..................... 1237841        
Broadcast Packets Received..................... 9017706        
--More-- or (q)uit
Receive Packets Discarded...................... 3246709

Total Packets Received with MAC Errors......... 0
Jabbers Received............................... 0              
Fragments/Undersize Received................... 0              
Alignment Errors............................... 0              
FCS Errors..................................... 0              
Overruns....................................... 0              
802.3x Pause Frames Received................... 0              
Unacceptable Frame Type........................ 0              

Total Packets Transmitted (Octets)............. 1792370154
Packets Transmitted 64 Octets.................. 0
Packets Transmitted 65-127 Octets.............. 2555270
Packets Transmitted 128-255 Octets............. 95547
Packets Transmitted 256-511 Octets............. 236089
Packets Transmitted 512-1023 Octets............ 268502
Packets Transmitted 1024-1518 Octets........... 123035
Packets Transmitted > 1518 Octets ............. 754547      
Max Frame Size................................. 1518           

Total Packets Transmitted Successfully......... 4032990
Unicast Packets Transmitted.................... 3971708
--More-- or (q)uit
Multicast Packets Transmitted.................. 5316        
Broadcast Packets Transmitted.................. 55966     
Transmit Packets Discarded..................... 0

Total Transmit Packets Discarded............... 0
Single Collision Frames........................ 0              
Multiple Collision Frames...................... 0           
Excessive Collision Frames..................... 0              

802.3x Pause Frames Transmitted................ 0              
GVRP PDUs received............................. 0              
GVRP PDUs Transmitted.......................... 0              
GVRP Failed Registrations...................... 0              
BPDU: sent 0, received 0


EAPOL Frames Transmitted....................... 0
EAPOL Start Frames Received.................... 0

Thanks in advance.

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4 Replies
Moderator
Moderator

RE: PowerConnect 6224 Switch Discarding Frames

That does seem bizarre, like you said no other counters increasing to indicate what may be the cause. Is there anything shown in the logs? # show logging. What firmware is the switch on? What device does port 24 connect to? Have you considered performing a packet capture on the interface?

Daniel Covey
Dell EMC| Enterprise Support Services
Get support on Twitter:@DellCaresPRO
Download our QRL app:iOS, Android, Windows
Dell Networking Resources

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MauricioUsatai
1 Nickel

RE: PowerConnect 6224 Switch Discarding Frames

The firmware version is 3.3.8.2

It's connected to another PowerConnect which interfaces does not have any discardings. (This one has firmware version 2.2.0.3)

Nothing shows on logs.

I am starting to think it is some kind of bug.

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Moderator
Moderator

RE: PowerConnect 6224 Switch Discarding Frames

Can you show us the port configuration for the interfaces from both switches? The packet capture would show a lot of insight on the traffic and may help pinpoint if it is a specific type of traffic being discarded.

Daniel Covey
Dell EMC| Enterprise Support Services
Get support on Twitter:@DellCaresPRO
Download our QRL app:iOS, Android, Windows
Dell Networking Resources

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IonGaucan
1 Copper

RE: PowerConnect 6224 Switch Discarding Frames

As the subject is 6224 switch, I have a crazy problem. I don't know how to find the mac-addresses of the switch ports. Is there any show command for that?

Please, help! I really can't find anything...

Thanks in advance!

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