Specifications

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§ Policing on a per-class basis within a logical interface (e.g., on a DS-3
allow 2 Mbps of traffic marked with the "gold" DiffServ Code Point value,
5 Mbps of traffic marked with the "silver" DiffServ Code Point value and
an unlimited amount of traffic marked with the "bronze" DiffServ Code
Point value).
§ Policing on a "layer 4" profile. For example, allow an unlimited amount
of SMTP traffic and mark it as low priority but police interactive HTTP
traffic to some bandwidth threshold.
§ Policing / Rate Limiting ICMP traffic
§ Setting of Qn based on ACL to queue a packet based on the application
type (e.g. VoIP, telnet, http).