[c-nsp] Nexus 7700 sup2e Upgrade

[Charles Spurgeon]

* Nick Griffin <nick.jon.griffin at gmail.com> [2018-07-30 10:25:21 -0500]:
> Looking to upgrade some 7ks from 6.2.12 to something 7.2 or 7.3 to
  support the peering of layer 3 devices across vpc port
  channels. Looking to see what code versions others are using that
  have proven to be stable.

We've been running 7.3 but are moving to 8.2 to resolve the vulns
announced here:
https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-67770

Some of the vulns listed were fixed as of 7.3(2)D1(2) and some aren't
fixed until 8.1/8.2 code.

7.3(2)D1(2) has been stable for us for 198 days of runtime on a pair
of 7710s with sup2e in a data center with VPC (traditional multi-tier
design).

Currently we have been smoke testing 8.2 in the lab to replace the 7.3
code on the next maintenance window.

-Charles