[Starlink] Re: Amazon Leo announcing up to 1 Gbps (DOWN) and 400 Mbps (UP)

[David Collier-Brown <davec-b@rogers.com>]

Michael Richardson wrote:

>
>> One use case from northern canada that I'm aware is the 9am login at
>> government offices.  Lots of bandwidth needed to do all that 
>> ActiveDirectory
>> profile replication/update for all the people doing this at the same 
>> time.
>> I've heard stories of it taking an hour for everyone to get logged in.
>> AD replication ought to solve this, but apparently, it doesn't for 
>> reasons I
>> don't understand.

On 12/8/25 15:57, David Lang via Starlink wrote:
> microsoft protocols are not wan friendly, they do lots of round trips. 
> There are wan accelerator middle boxes that short-cut the protocols. 
> It's not just the AD lookups, it's filesystem queries as well. 

MS is really /really/ bad at handling anything bigger/more-laggy than 
the original token-ring and ethernet LANs. In the case of SMB, people 
built local caching/middleware boxes using Samba to get the RTT down.

They're the first folks who taught me that it's latency, not bandwidth.

--dave

-- 
David Collier-Brown,         | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
davecb@spamcop.net           |              -- Mark Twain