Released
Datasheet
PM73487 QRT
PMC-Sierra, Inc.
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.
QRT #1
(PM73487)
622 Mbps
Aggregate
622 Mbps
Aggregate
QRT #1
(PM73487)
Receive Input
Transmit Output
Receive UTOPIA
Level 2
Transmit UTOPIA
Level 2
QSE
(PM73488)
QRT #8
(PM73487)
QRT #8
(PM73487)
622 Mbps
Aggregate
622 Mbps
Aggregate
Receive Input
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.
QRT #1
(PM73487)
QRT #1
(PM73487)
622 Mbps
Aggregate
622 Mbps
Aggregate
Transmit Output
Receive Input
Receive
UTOPIA
Level 2
×
Transmit
UTOPIA
Level 2
4
QRT #8
(PM73487)
QRT #8
(PM73487)
622 Mbps
Aggregate
622 Mbps
Aggregate
QSE
(PM73488)
QSE
(PM73488)
QSE
(PM73488)
× 16
× 16
× 16
Receive Input
Transmit Output
622 Mbps
Aggregate
QRT #9
(PM73487)
QRT #9
(PM73487)
622 Mbps
Aggregate
QSE
QSE
QSE
× 16
(PM73488)
(PM73488)
(PM73488)
Receive Input
Transmit Output
Receive
UTOPIA
Level 2
Transmit
UTOPIA
Level 2
×
4
QRT #16
(PM73487)
QRT #16
(PM73487)
622 Mbps
Aggregate
622 Mbps
Aggregate
Receive Input
Transmit Output
Figure 5. 64 x 64 Switch Application (10 Gbps)
6
PMC [ PMC-SIERRA, INC ]
