[Info-vax] Sudden problems with slow sftp transfers and slow disk accesses

[Bill Gunshannon]

In article <ldvqek$c1h$1 at news.albasani.net>,
	Jan-Erik Soderholm <jan-erik.soderholm at telia.com> writes:
> gwilliams at cfa.harvard.edu wrote 2014-02-18 14:25:
> 
>> On Tuesday, February 18, 2014 8:16:17 AM UTC-5, Jan-Erik Soderholm wrote:
>>>
>>> This is probably *NOT* an issue with your Alpha servers or
>>> with OpenVMS. CHECK YOUR SWITCHES SETTINGS!
>>>
>>> "possible duplex mismatch" is not that hard to understand.
>>>
>>> Your problems with (s)ftp is exactly what is expected when
>>> the switch runs half-duplex. Terminal sessions runs OK, ftp
>>> of small files works but larger file transfers "hangs".
>>>
>>> Jan-Erik.
>>
>> The switch is an auto-sensing Netgear 16-port FS116.  I don't see how
>> I can check what the switch is set to.
>>
> 
> Are you saying that you are running *8* Alphas in an
> environment with *unmanaged* switches? It sounds as
> some professional environment and not using managed
> switches sound a bit weird.

I was going to say something about this but thought it better not to
get in a pissing contest over business vs. home network architecture.

> 
> The FS116 is one of the cheapest home switches available,
> aprox $60 each here in Sweden.
> 
> I had the same problem with my test system (DS25) in
> my office using an similar unmanaged DLink switch and
> I simply enabled Auto-negotiation and all was fine.
> 
> $ mc latcp set device /autonegotiate EIA0:
> 
> or whatever your interface/device is called.
> 

I use managed switches (Netgear) at home.  We use Cisco at work.
I haven't used an unmanaged switch in either place for more than
a decade.

bill

-- 
Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
billg999 at cs.scranton.edu |  and a sheep voting on what's for dinner.
University of Scranton   |
Scranton, Pennsylvania   |         #include <std.disclaimer.h>