From: snipped-for-privacy@pingless.com[=====
> Newsgroups: comp.dcom.sys.cisco
> Subject: Speed Mismatch?!?
> Date: 7 May 2006 16:43:21 -0700
>
> [...]
>
> Now, 100/full to 100/full transfers are plenty fast. Very. And 1000
> to 1000 transfers outright smoke...as gigabit should.
>
> But, for large TCP transfers from a 1gbit host to a 100mbit host it
> goes very Slow...
nslookup -q=MX pingless.com
*** localhost can't find pingless.com: Non-existent host/domain
nslookup -q=MX pingless.com ns2.pingless.com
*** Can't find server name for address 67.131.247.190: No response from server
*** Default servers are not available
Therefore I'm posting this question on USENET
=====]
Hello,
I've found your USENET article above after searching (quite a while) what's the problem with 1 Gbps => 100 Mbps link transfers -- I have the same problem as you described.
Have you found a solution to your problem ?
My situation:
(1) 1 Gbps (WinXP notebook) -> 1 Gbps (Win2k[03] servers):
200~800 Mbps (OK):
Notebook w/ Broadcom 1 Gbps NIC -> 1 Gbps -> ZyXel GS-2024 1 Gbps switch -> 1 Gbps -> PC servers w/ Broadcom / Intel PRO/1000 1 Gbps NIC
(2) 1 Gbps (WinXP notebook) -> 100 Mbps (WinXP PC):
94 Mbps (OK):
Notebook w/ Broadcom 1 Gbps NIC -> 1 Gbps -> ZyXel GS-2024 1 Gbps switch switch -> 1 Gbps -> 3COM 3300 TM 100 Mbps switch (w/ one 1 Gbps port) -> 100 Mbps -> PC w/ 100 Mbps NIC
(3) 100 Mbps (WinXP notebook) -> 100 Mbps (Linux PC server):
94 Mbps (OK):
Notebook w/ Broadcom 1 Gbps NIC -> 100 Mbps -> 3COM 3300 TM 100 Mbps switch -> 100 Mbps -> PC server w/ 3c905C 100 Mbps NIC (full-duplex link)
(4) 1 Gbps (WinXP notebook) -> 100 Mbps (Linux PC server):
2~4 Mbps only (slow !):
Notebook w/ Broadcom 1 Gbps NIC -> 1 Gbps -> ZyXel GS-2024 1 Gbps switch -> 100 Mbps -> PC server w/ 3c905C 100 Mbps NIC (full-duplex link)
Thank you for your time.