Cisco WS-C3550-12G Software Configuration Manual page 49

Chapter 1 Overview
unauthorized devices from becoming the STP root switch. All ports have IGMP snooping or CGMP
enabled for multicast traffic management. ACLs on the uplink ports to the aggregating Catalyst 3550
multilayer switches provide security and bandwidth management.
The aggregating switches and routers provide services such as those described in the previous examples,
"Small to Medium-Sized Network Using Mixed
3550
Figure 1-4
Gigabit switch routers
Catalyst 3550
Set-top box
78-11194-03
Switches."
Catalyst 3550 Switches in a MAN Configuration
Cisco 12000
Catalyst 6500
Si
switches
Si
multilayer
switches
Si
Si
Catalyst
switches
TV
Switches" and "Large Network Using Only Catalyst
Si
Si
Si
Si
PC
Catalyst 3550 Multilayer Switch Software Configuration Guide
Network Configuration Examples
Service
Provider
POP
Mini-POP
Gigabit MAN
Residential
location
Residential
gateway (hub)
Set-top box
TV
1-15