Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual page 121

Chapter 8 Configuring Spanning Tree
Receives, processes, and transmits BPDUs received from the system module.
•
Receives and responds to network management messages.
•
Figure 8-5
addresses
Filtering
database
78-13315-02
Port 2 in Learning State
All segment
Forwarding
frames
Port 1
Station
BPDUs
System
module
Station
addresses BPDUs
Data
frames
Port 2
Learning
BPDU and network
management frames
Network
management
and data frames
Frame
forwarding
Network
management
frames
All segment
frames
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
Understanding How Spanning Tree Protocols Work
8-9