[Info-vax] SMTP chunk sizes

[Rich Jordan]

On Monday, March 23, 2015 at 7:14:07 PM UTC-5, Stephen Hoffman wrote:
> On 2015-03-23 23:55:25 +0000, Rich Jordan said:
> 
> >      Using the windows server as smarthost is fine for small mail so 
> > far.  However I just sent the same email message that would take 15-20 
> > minutes to get to GMAIL, and would die going to MS in 10 minutes, and 
> > it took over 75 minutes to send from the Alpha to the PC (on the same 
> > LAN...).  That was the 10.8MB body message (all text).  The same text 
> > file attached (and so uuencoded) is at 78 minutes now.
> > 
> >      Once it got to the windows server it appeared to take about 2 
> > minutes to get to me, so thats good, but we'll have to see if anything 
> > can be done about the intersystem pokiness.  I'll try and get a packet 
> > trace tomorrow.
> 
> One left-field check, given the really slow network performance...   
> Make sure it's not something simple, like a mis-negotiated network 
> port, or a bad switch port or flaky NIC.  Reset the network connection 
> from the Alpha to the switch to 100 MbE full-dup or whatever the 
> appropriate setting for the hardware, and both at the switch and at the 
> SRM console.  Be skeptical around the displays from any managed 
> switches, and reset the port after configuring it.  (I'd expect this 
> misconfiguration to show up in the packet traces, though...)
> 
> 
> -- 
> Pure Personal Opinion | HoffmanLabs LLC

Hoff,
     thanks, we did check that.  The Alpha has one NIC port connected to a ProCurve 2610.  The port and the NIC both agree they are at 100FDX, with the Alpha port preset at SRM level, but we'll verify and if necessary reboot the switch to confirm.  LANCP counters show no errors on the connected NIC port.

Haven't had time to do traces yet but hopefully still today.

Rich