ND1030 Ethernet ALA Service definition - NICC

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44 NICC ND 1030 V1.1.1 (2010-12) 7 Mandatory Configurations Where there is no capability to provide baseband voice, an ALA provider shall offer a Point-to- Point AUC capable of carrying voice communications. The bandwidth profiles and SLS parameters that would define such an AUC are for further study within NICC. NICC Standards Limited
45 NICC ND 1030 V1.1.1 (2010-12) Annex A (informative): MEF Bandwidth profile behaviour This Annex describes the behaviour of the MEF bandwidth profile for each of the classes of service supported by ALA. ALA supports the MEF color concept, but Yellow is only applicable to Classes C and D. Ingress color marking is only applicable to Classes C & D. Ingress color marking is done via the DEI bit or a PCP value of 2 for S-tagged frames, and a PCP value of 2 only for non S-tagged frames. The packet treatment is as follows: All Green packets are forwarded. Yellow packets can be dropped, but if forwarded, have the defined performance parameters, except for frame loss ratio All Red packets are dropped. Classes A and B Any ingress coloring is ignored and may be overwritten on egress If the equivalent packet rate is =< CIR + burst size, then the packet is Green If the equivalent packet rate is > CIR + burst size, then the packet is Red Classes C and D Any ingress coloring will be used but may be overwritten on egress Ingress Green marked packets If the equivalent packet rate is =< (CIR + burst size), then the packet remains Green If the equivalent packet rate is > (CIR + burst size) but (CIR + burst size + EIR), then the packet is Red Ingress Yellow marked packets The packet marking is unchanged unless the equivalent packet rate is > (CIR + burst size +EIR), then the packet is Red Notes: With the color coupling flag set, ingress yellow traffic can use any unused CIR bandwidth Ingress yellow traffic will be limited to (CIR+EIR – any Green traffic) NICC Standards Limited
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