I960Hd Processor - Cabletron Systems SmartSwitch 9500 Hardware And Installation Manual

ATM Cell Traffic Flow in the 9A656-04
CTM (Cell Transfer Matrix) ASICs
The 9A656-04 has seven CTM ASICs that provide two interfaces each between the
TDM Bus and the CTM Backplane located in the SmartSwitch 9500 chassis. Each
interface is a full-duplex connection with a raw throughput capacity of 2 Gbps. In
addition, the CTM ASICs perform all trafÞc management between the 9A656-04
and the CTM backplane.
Utopia (Universal Test and Operation Physical Interface) ASICs
The 9A656-04 has four Utopia ASICs whose role is to process ATM cells from the
ANIMs to the TDM Bus, and vice versa. In addition, the Utopia ASICs are
responsible for performing path lookups and outbound header translation.

i960HD Processor

The i960HD processor, working with the Þve types of ASICs deÞned earlier, is
responsible for distributed management functions, signalling, SNMP
management and serving as the in-band management LAN Emulation Client
(LEC) for the module. The i960 also supports out-of-band management interfaces.
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