From: Church, Chuck (cchurch@netcogov.com)
Date: Tue Apr 12 2005 - 12:32:39 GMT-3
Wayne,
Your problem appears to be config or hardware related. 50 or 85
kb/sec is absurdly slow. TCP isn't the problem, not with a RTT of well
under 1ms between the hosts. I'd take a look at all the duplex settings
first. TCP shouldn't have a problem on a LAN, until you get to
gigabit-speed. HTH.
Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
cchurch@netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Wayne Bellward
Sent: Tuesday, April 12, 2005 7:12 AM
To: Cisco certification
Subject: File Transfer Speeds
Hi All,
I have two 3550EMI's connected via a 10Mb Full duplex crossover, the
link is a 802.1q trunk and I only have about four VLANS running. When
I do an FTP of a 10Mb binary file between two hosts one on each switch
in different VLANS I get file transfer speeds of about 50KBs. If I
put the hosts on the same 3550 I get transfer speeds of about 85KBs,
CEF is enabled but either way I would expect to get transfer speeds
much greater than those I am getting.
The 3550 has a 8.8Gbps switch fabric and a throughput of 4.4Gbps can
anyone explain to me why this is happening? I don't think there is a
problem with the switches or the hosts but get the impression I am
missing a fundamental aspect of switching.
Many Thanks,
Wayne
This archive was generated by hypermail 2.1.4 : Tue May 03 2005 - 07:54:56 GMT-3