System Manual 3. System Architecture
76.7300FP11/2, Rev A 8/09 Page 2-17
System Scalability
3.17 Full line rate throughput is supported for all interfaces via an internal
Ethernet switch device. Ethernet features support both customer premise
equipment (CPE) and central office (CO) related applications.
3.18 The maximum capacity for each supported entity is shown in Table 3.1,
page 2-17.
System Redundancy (Tellabs 7345 Switch)
3.19 Duplication of the Tellabs 7345 Switch components allows for redundancy,
providing continuing functionality even if a failure occurs on one of the components,
including redundant power supplies and fans.
Power Supplies 3.20 The power supplies normally operate as load sharing. When a power
supply fails, the other power supply carries the entire system load. No disruption
occurs.
Fans 3.21 A single fan drawer is used that supports six individual fans. When a fan
fails, the remaining five fans provide sufficient airflow to allow proper system
operation across the supported operating temperature range. No disruption occurs
when a fan fails.
Redundancy (Tellabs 7325 Switch)
3.22 The Tellabs 7325 Switch supports redundant power supplies. The power
supplies normally operate as load sharing. When a power supply fails, the other
power supply carries the entire system load. No disruption occurs.
Table 3.1 Supported Entities and Capacity
Entity Maximum Quantity
MAC addresses 32k per system
Layer 2 classifications 2k per system
VLANs 4k VLANs per system
MSTP instances 16 per system
VLANs per MSTP instance 4k VLANs
Multicast members 128 per multicast group per line card (includes
logical and physical members as well as
replication)
L2 policing 1024 per system
Queues 8 class-based per port
Link aggregation groups
(LAGs)
26 groups per Tellabs 7345 Switch
24 groups per Tellabs 7325 Switch
Link Aggregation Members 8 per LAG
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