Cisco 2950 24 Configuration Guide - Page 29

Chapter 1 Overview Features Table 1-1 Features (continued) Security • Bridge Protocol Data Unit (BPDU) Guard for shutting down a Port Fast-configured port when an invalid configuration occurs • Protected port option for restricting the forwarding of traffic to designated ports on the same switch • Password-protected access (read-only and read-write access) to management interfaces (CMS and CLI) for protection against unauthorized configuration changes • Multilevel security for a choice of security level, notification, and resulting actions • MAC-based port-level security for restricting the use of a switch port to a specific group of source addresses and preventing switch access from unauthorized stations1 • Terminal Access Controller Access Control System Plus (TACACS+), a proprietary feature for managing network security through a TACACS server • 802.1X port-based authentication to prevent unauthorized devices from gaining access to the network • Standard and extended IP access control lists (ACLs) for defining security policies1 Quality of Service and Class of Service Classification • IP Differentiated Services Code Point (IP DSCP) and class of service (CoS) marking priorities on a per-port basis for protecting the performance of mission-critical applications1 • Flow-based packet classification (classification based on information in the MAC, IP, and TCP/UDP headers) for high-performance quality of service at the network edge, allowing for differentiated service levels for different types of network traffic and for prioritizing mission-critical traffic in the network1 • Support for IEEE 802.1P CoS scheduling for classification and preferential treatment of high-priority voice traffic Policing • Traffic-policing policies on the switch port for allocating the amount of the port bandwidth to a specific traffic flow1 • Policing traffic flows to restrict specific applications or traffic flows to metered, predefined rates1 • Up to 60 policers on ingress Gigabit-capable Ethernet ports1 Up to six policers on ingress 10/100 ports1 Granularity of 1 Mbps on 10/100 ports and 8 Mbps on 10/100/1000 ports1 • Out-of-profile markdown for packets that exceed bandwidth utilization limits1 Egress Policing and Scheduling of Egress Queues • Four egress queues on all switch ports. Support for strict priority and weighted round-robin (WRR) CoS policies 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 1-5