The meter mode command allows users to select from the following meter types:
srTCM
Single Rate Three Color meter, with this meter a single rate can be specified by the user to limit the amount of traffic. The single rate along with the CBS and MBS determine the amount of both in-profile/committed traffic and out-of-profile/excess burst. With this meter, the CBS and MBS token buckets are replenished at single rate, that is, CIR.
trTCM
Two Rate Three Color meter, with this meter users can specify two rates; CIR and PIR can be specified by the user to limit the amount of traffic. It allows the user to limit the amount of in-profile/committed traffic to CIR rate and allows user to send excess out-of-profile traffic up to a peak rate of PIR. With this meter, the meters CBS token buckets are replenished at the CIR rate and the MBS/EBS token buckets are replenished at the PIR/EIR rate There are two modes supported under this:
trTCM1 - implements policing as per RFC 2698
trTCM2 - implements policing as per RFC 4115
srTCM - implements policing as per RFC 2697
The 7210 SAS-D and 7210 SAS-Dxp devices support the following meter modes:
srTCM - Single Rate Three Color Marking (as per RFC 2697)
trTCM1 - Two Rate Three Color Marking (as per RFC 2698)
trTCM2 - Two Rate Three Color Marking (as per RFC 4115)
Different QoS policies support different meter modes; not all the meter modes are supported for all the QoS policies.