[j-nsp] experience using 10G DAC (twinax) cables between EX and multi-vendor

[Andy Litzinger]

Has anyone used a 10G DAC/Twinax cable between an EX4550 and other vendor gear?  Did you use Juniper DAC cables or the other vendor cables?

In particular I'm planning on linking a Cisco UCS Fabric Interconnect and also an F5 BigIP 4200v to a VC of EX4550s.

would you recommend it or should I fork over the money to use optics?

thanks!
-andy