Cisco Catalyst 2950 Software Configuration Manual page 43

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All ports on the residential Catalyst 2950 switches (and Catalyst 2912-LRE XL or 2924-LRE XL

switches if they are included) are configured as 802.1Q trunks with protected port and STP root guard

features enabled. The protected port feature provides security and isolation between ports on the switch,

ensuring that subscribers cannot view packets destined for other subscribers. STP root guard prevents

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

Gigabit switch routers

Catalyst 3550

Catalyst 2950 Switches in a MAN Configuration

Catalyst 6500

Configuration" and

"Large Campus

Catalyst 2950 Desktop Switch Software Configuration Guide

Network Configuration Examples

Configuration."

gateway (hub)

Troubleshooting