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тАО06-24-2008 02:29 AM
тАО06-24-2008 02:29 AM
5406zl - auto-10-100 & lot of drops
on a 5406 copper-module i've configured speed-duplex auto-10-100.
the status (show interface brief) for every port is 100FDx.
but all ports have a lot of tx drops (no other errors). the log is full of warnings like "high collision or drop rate". the port utilization has a maximum of 1%.
what's the problem in detail? i don't think that's a performance-problem. should i enable flow control?
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тАО06-24-2008 03:05 AM
тАО06-24-2008 03:05 AM
Re: 5406zl - auto-10-100 & lot of drops
1-check utp cable
you have cable cat5 or better (cat5e or cat6)
you make reinstall punch down patch panel and connector.
2-check nic or nic driver
please you check nic include 802.1 and 802.1u standart ifneed change your pc nic
standart 802.1u Fast ethernet connection porotocol number nic must be give this standart.
cenk
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тАО06-24-2008 04:07 AM
тАО06-24-2008 04:07 AM
Re: 5406zl - auto-10-100 & lot of drops
tx drops are only packets are going out of the switchport directly to the edge-device, right? that means, the switch can't submit all packets to the device - hence the switch drops packets.
what i mean...
a tx-drop should be only a client- or cabling-problem or not??
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тАО06-24-2008 05:12 AM
тАО06-24-2008 05:12 AM
Re: 5406zl - auto-10-100 & lot of drops
if don't include 802.1u protocol pc nic
please change
(for 100 base FDx connection nic include 802.1u protocol)
and check utp cable
essentially... for good working infrastructure
we make many test method on utp cable
next,elfext,psnext,pselfext,RL,in Loss etc.
cenk
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тАО06-24-2008 05:24 AM
тАО06-24-2008 05:24 AM
Re: 5406zl - auto-10-100 & lot of drops
cenk
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тАО06-24-2008 05:27 AM
тАО06-24-2008 05:27 AM
Re: 5406zl - auto-10-100 & lot of drops
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тАО06-24-2008 03:35 PM
тАО06-24-2008 03:35 PM
Re: 5406zl - auto-10-100 & lot of drops
Another reason could be due to a Gigabit device which is sending out traffic at line-rate to a broadcast/multicast address. The buffers for the 100Mbit ports simply cannot keep up so packets will get dropped.
The main question is - are the TX drops continuously increasing or are they now stable? If they are stable, I wouldn't worry about it but would keep an eye on it.
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тАО06-25-2008 03:19 AM
тАО06-25-2008 03:19 AM
Re: 5406zl - auto-10-100 & lot of drops
Wie nutzen diese Einstellung im Zusammenhang mit 5400zl auf der Switch Seite und meistens Windows XP oder Vista Systemen auf der Hostseite.
Drop Fehler treten nicht im beschriebenen Ma├Г auf.
Schlie├Г t man m├Г┬╢gliche Ursachen wie Kabel und Dosen aus, liegt es Nahe auf der Hostseite zu suchen. Zumal, wenn der Gro├Г teil der Systeme gleiche Treiber, gleiche Einstellungen, gleiches Betriebssystem usw. verwendet.
Sind wirklich alle Ports betroffen?
Wenn nein, wo liegen die Unterschiede auf der Hostseite?
Wenn die Fehler nur beim Starten der Hosts auftreten, welche Anwendungen sind da im Spiel?
Viel Erfolg!
Carsten
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тАО06-25-2008 03:42 AM
тАО06-25-2008 03:42 AM
Re: 5406zl - auto-10-100 & lot of drops
please speak english
I'm not understand germany
many people not understand germany in this forum
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тАО06-25-2008 03:46 AM
тАО06-25-2008 03:46 AM
Re: 5406zl - auto-10-100 & lot of drops
the drops only occur when the pc's on the switchports are boot up or shut down!