PM73487 Datasheet, PDF (18/251 Pages) PMC-Sierra, Inc – 622 Mbps ATM Traffic Management Device

Released
Datasheet
PMC-Sierra, Inc.
PM73487 QRT
PMC-980618
Issue 3
622 Mbps ATM Traffic Management Device
1.3 32 x 32 Switch Application (5 Gbps)
Figure 4 shows a basic 32 × 32 switch application (5 Gbps) using eight QRTs and one QSE.
622 Mbps
Aggregate
QRT #1
(PM73487)
Receive Input
×₄
Receive UTOPIA
Level 2
622 Mbps
Aggregate
QRT #8
×⁴
(PM73487)
Receive Input
QRT #1
(PM73487)
622 Mbps
Aggregate
×⁴
Transmit Output
QSE
(PM73488)
×₄
QRT #8
(PM73487)
Transmit UTOPIA
Level 2
622 Mbps
Aggregate
Transmit Output
Figure 4. 32 x 32 Switch Application (5 Gbps)
1.4 64 x 64 Switch Application (10 Gbps)
Figure 5 shows a 64 × 64 switch application (10 Gbps) using 16 QRTs and 6 QSEs. This applica-
tion uses QSEs in a 3-stage fabric. This sized system can be implemented in a single 19-inch rack.
622 Mbps ^{QRT #1}
Aggregate ^(PM73487)
Receive
UTOPIA
Level 2
Receive Input
622 Mbps
QRT #8
Aggregate ^(PM73487)
Receive Input
622 Mbps
QRT #9
Aggregate (PM73487)
Receive
UTOPIA
Level 2
Receive Input
622 Mbps ^{QRT #16}
Aggregate ^(PM73487)
Receive Input
QSE
× 16
(PM73488)
QSE
× 16
(PM73488)
QSE
(PM73488)
QRT #1
(PM73487)
622 Mbps
Aggregate
Transmit Output
QRT #8
(PM73487)
Transmit
UTOPIA
Level 2
622 Mbps
Aggregate
Transmit Output
QSE
× 16
(PM73488)
QSE
× 16
(PM73488)
QSE
(PM73488)
Figure 5. 64 x 64 Switch Application (10 Gbps)
QRT #9
(PM73487)
622 Mbps
Aggregate
Transmit Output
QRT #16
(PM73487)
Transmit
UTOPIA
Level 2
622 Mbps
Aggregate
Transmit Output
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