Chapter 1      Overview
Features
1-2
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
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Table 1-1 Features
Ease of Use and Ease of Deployment
• Cluster Management Suite (CMS) software for simplified switch and switch cluster management 
through a web browser, such as Netscape Communicator or Microsoft Internet Explorer, from 
anywhere in your intranet
• Switch clustering technology, in conjunction with CMS, for
–
Unified configuration, monitoring, authentication, and software upgrade of multiple switches 
(refer to the release notes for a list of eligible cluster members).
–
Automatic discovery of candidate switches and creation of clusters of up to 16 switches that 
can be managed through a single IP address.
–
Extended discovery of cluster candidates that are not directly connected to the command 
switch.
• Hot Standby Router Protocol (HSRP) for command-switch redundancy
Note See the “Advantages of Using CMS and Clustering Switches” section on page 1-8. Refer 
to the release notes for the CMS and cluster hardware, software, and browser requirements.
Performance
• Autosensing of speed on the 10/100 ports and autonegotiation of duplex mode on all switch ports 
for optimizing bandwidth
• IEEE 802.3x flow control on 100-Mbps and Gigabit ports operating in full-duplex mode
• Fast EtherChannel and Gigabit EtherChannel for enhanced fault tolerance and for providing up to 
4 Gbps of bandwidth between switches, routers, and servers
• Per-port broadcast storm control for preventing faulty end stations from degrading overall system 
performance with broadcast storms
• Cisco Group Management Protocol (CGMP) for limiting multicast traffic to specified end stations 
and reducing overall network traffic
• CGMP Fast Leave for accelerating the removal of unused CGMP groups to reduce superfluous 
traffic on the network
• Multicast VLAN registration (MVR) to continuously send multicast streams in a multicast 
VLAN, but to isolate the streams from subscriber VLANs for bandwidth and security reasons
• Protected port (private VLAN edge port) option for restricting the forwarding of traffic to 
designated ports on the same switch