Avaya 8800 Planning And Engineering, Network Design page 25

Figure 3: RS module usage
The 8612XLRS, 8648GBRS, and 8634XGRS modules use a three-lane Distributed Processing
Module (DPM) based on Route Switch Processor (RSP) 2.6 architecture. The 8648GTRS uses a
two-lane DPM. The following table provides details about oversubscription rates for each module.
Typical network designs use oversubscribed modules at the building distribution layer and
nonoversubscribed links to core. Using oversubscribed modules at the distribution layer are cost-
effective as long as the module provides strong built-in packet QoS capabilities—RS modules do so.
Table 1: RS module lane oversubscription
Module
8612XLRS
June 2016
Lane oversubscription
4:1 (each group of ports [1–4, 5–8, and 9–12] share
a 10GE lane)
Planning and Engineering — Network Design
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Modules
Table continues...
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