PM8611-BIAP PMC [PMC-Sierra, Inc], PM8611-BIAP Datasheet - Page 261

• Manufacturer Part Number: PM8611-BIAP
• Manufacturer: PMC [PMC-Sierra, Inc]

13.3
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
Figure 22 Non DS0 Switch Timing
SBS#2 OCMP.INT
Switch Setting Algorithm
NSE/SBSLITE fabrics require an algorithm to map from customers’ connection requirements to
settings in the switch function control registers in these devices. Four constraints apply to this
algorithm:
There are several aspects of this problem:
SBS#1 TCMP.INT
NSE RC1FP.INT
SBI Frame Time
SBS RC1FP.INT
SBS OC1FP.INT
SBS IC1FP.INT
SBS#2 OCMP
NSE CMP.INT
SBS#1 TCMP
The algorithm must succeed for arbitrary permutation requests (i.e., neither the fabric nor the
algorithm can fail to connect any one-to-one connection request).
The algorithm must permit connection of 2-cast requests (port replication for either snooping
or for advanced redundancy fabrics). In fabrics with spare capacity and multicast/broadcast
servers, the algorithm must permit mapping of multicast/broadcast requests, up to the
capacity of the fabric and the servers.
This algorithm must be fast enough to satisfy requirements for response to operator requests
for connection changes.
This algorithm must be fast enough to satisfy requirements for protection responses to
equipment failures.
Internal Sigs
NSE CMP
C1FP
0us
SBSLITE™ Telecom Standard Product Data Sheet
250us
500us
Preliminary
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