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Frame discard 3com baseline 2948

 
tumbalasso
Occasional Contributor

Frame discard 3com baseline 2948

Hello





I am having the problem below:





Can someone tell the solution?





Thanks!



 





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Frame Discards



 



The number of frames discarded by a port gives an indication of how well the port is handling the traffic passing through it.  Discarded frames normally only occur on a very busy network.



 



A large number of frames are being discarded on the port.  This probably indicates that there is more traffic going to and from this port than the switch can handle.  Users may be experiencing significant performance degradation.



 



100,00% of the frames discarded were frames received from the port.  This suggests that the internal bandwidth of the switch is completely saturated and all traffic going through the switch will be affected.



 



1. A high discard rate is usually caused by high utilization or collisions on



   the link.  Check the other monitors on the link to see if the high discard



   rate may be caused by some other problem.



 



2. If you have VLANs set up on the switch, check that it is not receiving



   illegal frames, i.e. tagged frames destined for a port that does not have



   that VLAN tagging enabled.



 



3. If the switch is forwarding traffic from a high-speed port to a slower



   port, then the slower port may be saturated with traffic, so the switch has



   to discard frames.  Ensure that busy devices are connected to high-speed



   ports.



 



4. Excessive collisions on a port can prevent traffic from being forwarded,



   and therefore cause discards.  Check that all ports are configured to use



   the correct duplex mode, since incorrect duplex mode settings can cause



   collisions.





1 REPLY
tumbalasso
Occasional Contributor

Re: Frame discard 3com baseline 2948

Good afternoon!





Does anyone have any tips?





Thanks!