Facility wide DR/Continuity
Roland Dobbins
rdobbins at arbor.net
Wed Jun 3 15:05:34 UTC 2009
On Jun 3, 2009, at 9:37 PM, William Herrin wrote:
> If you can afford it, stretch the LAN across the facilities via fiber
> and rebuild the critical services as a load balanced active-active
> cluster.
I would advise strongly against stretching a layer-2 topology across
sites, if at all possible - far better to go for layer-3 separation,
work with the app/database/sysadmin folks to avoid dependence on
direct adjacencies, and gain the topological freedom of routing.
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Roland Dobbins <rdobbins at arbor.net> // <http://www.arbornetworks.com>
Unfortunately, inefficiency scales really well.
-- Kevin Lawton
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