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тАО11-03-2008 08:25 PM
тАО11-03-2008 08:25 PM
procurve drops Tx at 100,000 plus
ProCurve J8773A Switch 4208vl
Software revision L.10.23
Like this :
Port Total Bytes Total Frames Errors Rx Drops Tx Ctrl
----- ------------ ------------ ------------ ------------ -----
A1 963,718,980 189,756,750 1 9,119,520 off
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тАО11-04-2008 02:15 AM
тАО11-04-2008 02:15 AM
Re: procurve drops Tx at 100,000 plus
(sh int A1) commad print
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тАО11-04-2008 08:33 AM
тАО11-04-2008 08:33 AM
Re: procurve drops Tx at 100,000 plus
Status and Counters - Port Counters for port A1
Name :
Link Status : Up
Totals (Since boot or last clear) :
Bytes Rx : 3,255,967,027 Bytes Tx : 2,076,932,449
Unicast Rx : 35,983,105 Unicast Tx : 39,999,204
Bcast/Mcast Rx : 601,825 Bcast/Mcast Tx : 113,390,502
Errors (Since boot or last clear) :
FCS Rx : 1 Drops Tx : 9,170,184
Alignment Rx : 0 Collisions Tx : 404,947
Runts Rx : 0 Late Colln Tx : 355,424
Giants Rx : 0 Excessive Colln : 0
Total Rx Errors : 1 Deferred Tx : 0
Rates (5 minute weighted average) :
Total Rx (bps) : 106776 Total Tx (bps) : 5001016
Unicast Rx (Pkts/sec) : 0 Unicast Tx (Pkts/sec) : 0
B/Mcast Rx (Pkts/sec) : 0 B/Mcast Tx (Pkts/sec) : 0
Utilization Rx : 00.01 % Utilization Tx : 00.50 %
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тАО11-04-2008 09:42 AM
тАО11-04-2008 09:42 AM
Re: procurve drops Tx at 100,000 plus
One thing that can cause late collisions is a duplex mismatch. It would be helpful to know what the port looks like in show int brief; also what the interface statistics look like at the remote end.
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тАО11-04-2008 10:07 AM
тАО11-04-2008 10:07 AM
Re: procurve drops Tx at 100,000 plus
I can't see any brust bandwith on port
but I can see many collision on port
Utilization Rx : 00.01 % Utilization Tx : 00.50 %
Collisions Tx : 404,947
Late Colln Tx : 355,424
drop causeses
bandwith brust
or
transport layer 4 udp and tcp protocols
udp protocol not include unknowledgement if packet not reachable destination
drop on network.
tcp include unknowledgement some time occur brust on port and occur congestion
tcp retransmit fault packet but tcp running round-trip time period
RTT to
detect congestion trend. This big burst of traffic plus
existing cross traffic will exceed the bottleneck link switch port
queue and cause up to 50% packet loss
My advice
enable flow control on port
(eth-A1)# flow-control
check int A1 on device and check cable connection
this device must be standart network device
include
802.1
802.1u
may be 802.3ab standarts
and
this device have network cable must be true installation whit true component
may be make your test on cable
neer and crosstalk test
far end crosstalk test
return loss test
propagation delay test
good luck
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тАО11-04-2008 10:09 AM
тАО11-04-2008 10:09 AM
Re: procurve drops Tx at 100,000 plus
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тАО11-04-2008 10:09 AM
тАО11-04-2008 10:09 AM
Re: procurve drops Tx at 100,000 plus
same speed
for example
100 base full
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тАО11-04-2008 10:52 AM
тАО11-04-2008 10:52 AM
Re: procurve drops Tx at 100,000 plus
I had checked the spped and du[plex setting already and they are matched. 100/full.
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тАО11-04-2008 11:03 AM
тАО11-04-2008 11:03 AM
Re: procurve drops Tx at 100,000 plus
My advice
enable flow control on port
(eth-A1)# flow-control