lot of info here... https://www.packetmischief.ca/2012/07/20/4-types-of-port-channels-and-when-t heyre-used/ seems like you might also want to ask the question ... Here's some info on interop between cisco vpc and juniper mc-lag https://supportforums.cisco.com/t5/other-data-center-subjects/nexus-7k-vpc-c onnecting-to-juniper-mx-series/td-p/1498544 - Aaron