BTW, what @balaji.bandi suggests, won't work as desired. If needs to be slightly modified:
policy-map total-bandwidth
class class-default
police 150000000 conform-action transmit exceed-action drop !policer drops - will not push traffic down to child policy
shape average 150000000
service-policy AllUsers
exit
Further, the above would only be effective for traffic to the Internet, not from the Internet (as the latter will not exceed 150 Mbps).
Also applying policy AllUsers might throw an error as no bandwidth was left for class-default (I recall [?] class-default wants at least 1%). To correct, you could use default class in lieu of one of the User classes.
You might also use a single policy with policers or shapers per user class:
policy-map AllUsers
class-map User60MB
<police or shape average> 60000000
class-map User50MB
<police or shape average> 50000000
class-map User40MB
<police or shape average> 40000000
exit
The above would work for to the Internet or (sort of) from the Internet. BTW, if using shapers, policy must be an "out" policy.
(sort of) - traffic from the Internet can be limited to what users will receive, but not as much control over actual bandwidth usage across the Internet link to you. This because, your controlling policy, for Internet ingress traffic, is downstream of the Internet link.
