From: Bill Hassell (blhconsulting@mindspring.com)
Date: Mon Jun 16 2003 - 17:04:08 EDT
This is exactly the symptoms you would see with an
autonegotiation failure (ie, the switch or the server
has defaulted to half-duplex). You'll see very slow
transfer rates and probably will see collisions too
which means the connectrion is not full-duplex.
If you can shorten the cable to less than 25 meters,
or lengthen the cable to more than 55 meters, this
may solve the problem. Autonegotiation fails when
the LAN cable is in this range. Even though the switch
and the server are supposed to be running in full-duplex
mode, these are classic symptoms for a half-duplex
mismatch. You may just have a bad LAN card.
--
Best regards,
Bill Hassell
> -----Original Message-----
> From: hpux-admin-owner@DutchWorks.nl
> [mailto:hpux-admin-owner@DutchWorks.nl]On Behalf Of Shaw, Matthew
> Sent: Monday, June 16, 2003 1:38 PM
> To: hpux admin
> Subject: [HPADM] FCS & Alignment errors
>
>
> Hello HP-UX folks,
>
> I have two machines here running HP-UX 11.00. They are connected
> to a Cisco 5500 series switch and on the switch we are seeing high
> numbers of FCS & Alignment errors on the ports that they are connected
> to. On the servers themselves, (via lanadmin) I am seeing very low
> numbers for these types of errors (completely different story on the
> servers)
>
> I have verified that the servers are both forced to 100FullDuplex in the
> lan device configurations and they are also forced to 100FD on the
> switch. The cables for both of these servers have been tested and no
> errors were detected. When I attempt an FTP transfer between the two
> servers I am only receiving 2MB/sec rather than the expected 10+MB/sec
> on a 100full-duplex network with very little load.
>
> Has anyone ever seen this before? Does anybody have any suggestions for
> things to look for to help track this down? Where can I get more
> information? Any next steps appreciated.
>
> Thanks
> Matt Shaw
> Technical Architect
> xwave, An Aliant Company
> Desk: 506-389-4641
> Cell: 506-863-8949
> matt.shaw@xwave.com
>
> --
> ---> Please post QUESTIONS and SUMMARIES only!! <---
> To subscribe/unsubscribe to this list, contact
> majordomo@dutchworks.nl
> Name: hpux-admin@dutchworks.nl Owner:
> owner-hpux-admin@dutchworks.nl
>
> Archives: ftp.dutchworks.nl:/pub/digests/hpux-admin (FTP,
> browse only)
> http://www.dutchworks.nl/htbin/hpsysadmin (Web,
> browse & search)
>
>
--
---> Please post QUESTIONS and SUMMARIES only!! <---
To subscribe/unsubscribe to this list, contact majordomo@dutchworks.nl
Name: hpux-admin@dutchworks.nl Owner: owner-hpux-admin@dutchworks.nl
Archives: ftp.dutchworks.nl:/pub/digests/hpux-admin (FTP, browse only)
http://www.dutchworks.nl/htbin/hpsysadmin (Web, browse & search)
This archive was generated by hypermail 2.1.7 : Sat Apr 12 2008 - 11:02:30 EDT