Carrier Access 1750 Manual De Usuario
2-12
Broadmore 1750 - Release 4.6
Planning and Ordering Guide
ATM Bandwidth per Module
ATM Bandwidth per Module
The CPU and each SAM uses a specific amount of ATM bandwidth, as shown below.
ATM Network Loading
The Broadmore 1750 multiplexes cells from various input SAMs into a single ATM
UNI signal that is delivered to the ATM network. There is overhead associated with
this process that reduces the total bandwidth available to the connected service
equipment. The Broadmore 1750 can load the network UNI to 95% capacity without
dropping cells. Service capacities are shown in the following table.
UNI signal that is delivered to the ATM network. There is overhead associated with
this process that reduces the total bandwidth available to the connected service
equipment. The Broadmore 1750 can load the network UNI to 95% capacity without
dropping cells. Service capacities are shown in the following table.
ATM Service Capacity
Module P/N
Module Description
ATM Bandwidth Required (Mbps)
7660-206
CPU, FIPS, 10Base-T,
AAL5
AAL5
Average: < 2.5 Mbps
Maximum: 4.0 Mbps
Maximum: 4.0 Mbps
7660-034
DS3, Unstructured,
3 port
3 port
Whole DS3: 50.45 Mbps
Maximum: 151.35 Mbps (all ports in
Maximum: 151.35 Mbps (all ports in
service)
7660-045
E3, Unstructured,
3 port
3 port
Each port: 39.21 Mbps
Maximum: 117.62 Mbps (all ports in
Maximum: 117.62 Mbps (all ports in
service)
7660-672
DS3, Structured,
1 port
1 port
Whole DS3: 50.45 Mbps
Module
Cell Bus
ATM Network
Rate (Mbps)
Rate (Mbps)
ATM Service
Capacity (Mbps)
Capacity (Mbps)
OC-12c/STM-1c
A
C
D
E
Total
C
D
E
Total
155.520
155.520
155.520
155.520
155.520
155.520
155.520
622.080
149.760
149.760
149.760
149.760
149.760
149.760
149.760
599.040