Bonjour à tous,
Je me permets de venir poster sur ce forum car je ne trouve pas la solution à mon problème.
Dans une PME, j'ai 2 serveurs physiques HP ML350G5.
Le premier tourne sur Zentyal 4.0 (Ubuntu) et fait office de coeur de réseau (FW, proxy, sauvegarde, VPN).
Le second tourne sous Windows 2003 Server Enterprise Edition et héberge l'AD, le SGBD MS SQLServer ainsi que VirtualBox (2 VM : 1 test + 1 prod pour connexion à distances).
Les 2 serveurs sont reliés en direct sur un port GigaBit.
Les 2 problèmes que je rencontre sont les suivants :
1 - J'ai mesuré les débits avec Iperf entre les 2 serveurs. Voici le résultat qui me semble léger pour du GigaBit
Accepted connection from 192.168.2.10, port 2204
[ 5] local 192.168.2.1 port 5201 connected to 192.168.2.10 port 2205
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 56.0 MBytes 470 Mbits/sec
[ 5] 1.00-2.00 sec 67.4 MBytes 565 Mbits/sec
[ 5] 2.00-3.00 sec 69.4 MBytes 582 Mbits/sec
[ 5] 3.00-4.00 sec 68.5 MBytes 575 Mbits/sec
[ 5] 4.00-5.00 sec 69.0 MBytes 579 Mbits/sec
[ 5] 5.00-6.00 sec 78.5 MBytes 658 Mbits/sec
[ 5] 6.00-7.00 sec 74.3 MBytes 623 Mbits/sec
[ 5] 7.00-8.00 sec 77.2 MBytes 648 Mbits/sec
[ 5] 8.00-9.00 sec 71.7 MBytes 602 Mbits/sec
[ 5] 9.00-10.00 sec 69.9 MBytes 586 Mbits/sec
[ 5] 10.00-10.20 sec 14.2 MBytes 607 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-10.20 sec 0.00 Bytes 0.00 bits/sec sender
[ 5] 0.00-10.20 sec 716 MBytes 589 Mbits/sec receiver
-----------------------------------------------------------
Server listening on 5201
2 - J'ai un nombre important de "Received Address Errors" (Erreurs d'adresse reçues) sur l'interface réseau du serveur Windows
Microsoft Windows [Version 5.2.3790]
(C) Copyright 1985-2003 Microsoft Corp.
C:\Documents and Settings\domadmin>netstat -s
IPv4 Statistics
Packets Received = 665998
Received Header Errors = 0
Received Address Errors = 351655
Datagrams Forwarded = 0
Unknown Protocols Received = 0
Received Packets Discarded = 974
Received Packets Delivered = 313355
Output Requests = 391480
Routing Discards = 0
Discarded Output Packets = 0
Output Packet No Route = 0
Reassembly Required = 0
Reassembly Successful = 0
Reassembly Failures = 0
Datagrams Successfully Fragmented = 0
Datagrams Failing Fragmentation = 0
Fragments Created = 0
ICMPv4 Statistics
Received Sent
Messages 959 640
Errors 0 0
Destination Unreachable 472 153
Time Exceeded 0 0
Parameter Problems 0 0
Source Quenches 0 0
Redirects 0 0
Echos 243 244
Echo Replies 244 243
Timestamps 0 0
Timestamp Replies 0 0
Address Masks 0 0
Address Mask Replies 0 0
TCP Statistics for IPv4
Active Opens = 1208
Passive Opens = 1806
Failed Connection Attempts = 324
Reset Connections = 368
Current Connections = 57
Segments Received = 296506
Segments Sent = 372189
Segments Retransmitted = 2800
UDP Statistics for IPv4
Datagrams Received = 15737
No Ports = 1022
Receive Errors = 0
Datagrams Sent = 15818
Pour info, j'ai changé le câble, j'ai mis à jour les drivers du serveur sous Windows et je n'ai pas de collision sur l'interface du serveur Ubuntu
eth4 Link encap:Ethernet HWaddr 00:17:08:7e:71:52
inet addr:192.168.2.1 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:142745379 errors:0 dropped:0 overruns:0 frame:0
TX packets:52641340 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:195505230235 (195.5 GB) TX bytes:11595653016 (11.5 GB)
Interrupt:17 Memory:fdce0000-fdd00000
root@:~# ethtool eth4
Settings for eth4:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
Pour finir, j'ai remarqué que lorsque j'exécute WireShark sur le serveur Windows, le nombre de d'"erreurs d'adresse reçues" cesse immédiatement d'augmenter... (peut-être parce que l'interface bascule en mode promiscuous ??)
Merci d'avoir pris le temps de me lire.
Robert
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