Paul,
> Many web apps require cross VM communications, eg Web server to App
> server to DB server back to App server back to web server then
> finally back to user browser. Thus cross fabric flows are typical in
> many applications
Absolutely.
That's why avoiding creation of VLANs in the first place in any part of
the DC network where East-West traffic is of non negligible amount is
highly recommended.
L3VPN over no service aware pure IP transport works very nicely and
addresses the above application model pretty well.
Best,
R.
Many web apps require cross VM communications, eg Web server to App
server to DB server back to App server back to web server then finally
back to user browser. Thus cross fabric flows are typical in many
applications
Size, scale, and design may affect this a bit, but that's a general app
flow commonality that exists. This is why interVLAN routing is used
heavily in DC's of many different sizes.
--
Paul Unbehagen
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