1 dscontrol rule
2 add cluster:port:rule type type
2.1 %opts
2 dropserver cluster:port:rule server
2 remove cluster:port:rule
2 report cluster:port:rule
2 set cluster:port:rule
2.1 %opts
2 status cluster:port:rule
2 useserver cluster:port:rule server+s2+...

opts:

1? 
1 beginrange low endrange high
1 priority level
1 pattern pattern
1 tos value
1 stickytime time
1 affinity affinity_type
1 cookiename value
1 evaluate level
1 sharelevel level