December 1, 2008 04:05pm pst

1. strung 65,430
2. pheidius 21,350
3. eoinosullivan 19,345
4. Callandor 5,850
5. jhyiesla 5,600
6. heterony... 5,260
7. sparkmaker 4,125
8. nichicks 4,000
8. bahadirko... 4,000
8. cammj 4,000
11. psilence 3,725
12. kanlue 3,100
13. b0lsc0tt 2,500
14. sunnycoder 2,400
15. kguy18 2,200
16. straight-t... 2,150
17. arnold 2,000
17. mystics7 2,000
17. codezp 2,000
17. tigfour 2,000
17. JoshuaOrr 2,000
17. packetguy 2,000
17. hobowan... 2,000
17. arseblast 2,000
17. lawrence... 2,000
17. j_stone 2,000
17. mr-gadget 2,000
17. coolsport00 2,000
17. speedrac... 2,000
17. kaygroth2 2,000
17. sam_coer 2,000
17. Darr247 2,000
17. kosarajud... 2,000
17. ParadiseITS 2,000
17. cjpalmer 2,000
17. jjdurrant 2,000
17. robsantos 2,000
17. SuprSpy79 2,000
17. danomatic 2,000
17. all4artz 2,000
17. coral47 2,000
17. bobexpert 2,000

1. strung 76,459
2. eoinosullivan 45,295
3. pheidius 42,800
4. in-effect 17,405
5. heterony... 10,160
6. mcmarks 7,068
7. Callandor 6,050
8. jhyiesla 5,600
9. sparkmaker 5,325
10. randdv8 4,800
11. GeertJon 4,664
12. DrNikon224 4,260
13. nichicks 4,000
13. cammj 4,000
13. bahadirko... 4,000
16. psilence 3,725
17. ParadiseITS 3,500
18. kanlue 3,100
19. dalesit 2,950
20. sibgig 2,932
21. mmconsul... 2,900
22. supportor... 2,800
23. b0lsc0tt 2,500
24. sunnycoder 2,400
25. kguy18 2,200

08.15.2008 at 07:32AM PDT, ID: 23651400 | Points: 500

	[x] Attachment Details

Strange Gigabit Network Behavior

Asked by fun-support in Apple Hardware, Miscellaneous Networking, Network Switches & Hubs

Tags: Apple, iMac, 24", 3Ghz, 4GB Memory

This is a weird one!

We have several new 24" iMac's that we are rolling out. Users began complaining of extremely slow network access even though they had gigabit connections. We have been able to reproduce the issues moving the machines to different switches and ports, with 2 exceptions. First, if they are plugged into a Cisco switch they operate as expected (all other switches are 3Com 4200G).

Second, and this is where it gets weird...If I start a packet capture session using Packet Peeper (Open Source OSX packet capture utility) the machine performs at the expected gigabit speeds. Turn Packet Peeper off and it is slow again! This works 100% of the time.

Anyone have any ideas why running a packet sniffing application would cause the systems NIC to work correctly?Start Free Trial

Keywords: Strange Gigabit Network Behavior

	Title
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2	GIGABIT SWITCHING ON 10/100 …
3	best Gigabit ethernet + ADSL router?
4	To gigabit or not to gigabit
5	gigabit
6	Network Speed seems slow for Gigabit

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