Can someone explain how to create forwarding classes in Junosphere?
set class-of-service forwarding-classes ?
There is no option for class only queue.
Here are a couple things that might help. One is the attached list of features supported in Junosphere - it supports a subset of the total CoS features in Junos.
Assuming the CoS you want to run is supported it should be just like configuring a regular Junos router (via CLI or JWeb).
Here is a doc on configuring CoS in Junos: http://www.juniper.net/techpubs/software/junos-security/junos-security96/junos-security-swconfig-int...
Hope this helps.