[j-nsp] EX4200 cluster duplicating traffic or broken mirror?

[Norman Elton]

> unless the mirror capabilities of the switch are just broken

Sorry to be the bearer of bad news, but the mirror capabilities of the
switch are ... broken. When you mirror packets from one PFE to
another, the VLAN tags get scrambled. It's apparently a hardware
defect. You only get the correct VLAN tags when the source and
destination interfaces are on the same PFE.

Norman