Hi All,We have a Nexus 5548up IOS 5.0(2)N1(1) with a FEX (2248TP)5548 has 1 TenG connection to 6509 and also 2 x 1G RJ45 connections to 4948. Both connections are on 5548.4948 also connect to 6509 so there is loop but block by STP.Got a weird problem...