[c-nsp] Nexus 5k dual sup design

[Friedemann Stoyan]

On 23.05.13 22:15, Mike Hale wrote:
> Ahhh, gotcha.
> 
> I've got no experience with that as of yet.  We're putting in 8 2248s
> pretty shortly which I was going to dual-home for redundancy, but that
> project is still in the early stages.  I'd also love to hear what
> other folks have experienced with this kind of setup.

Dual Homed disadvantages

* the maximum number of FEX is halved
* FCoE is not recommemded
  http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/mkt_ops_guides/513_n1_1/n5k_enhanced_vpc.html#wp1162674
* welcome to config sync hell

We decide for straight through topology and it works like a charm.