[c-nsp] Two data centers and L2

[Brad Swanson]

Is there a good reference (web or print) that shows the pro's/con's of the 
various options to connect two data centers via L2?  I am aware of: Build 
the Best Data Center Facility for Your Business ISBN: 1587051826.  Fiber 
distance apart is 17 miles.  Of course due to application limitations and L8 
requests we need to provide L2...  A very standard 3-tier Cisco design is 
going in to the new data center, with DWDM available between data centers.

Thanks,
Brad Swanson