Cisco CATALYST 2950-24 XL 24 PORT RJ45 RACK MOUNT 10/100 SWITCH STANDARD SOFTWARE Specification Guide
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In addition to Cisco Network Assistant, Cisco Catalyst 2950 Series switches provide extensive management tools using SNMP network management
platforms such as CiscoWorks. Managed with CiscoWorks, Cisco Catalyst family switches can be configured and managed to deliver end-to-end
device, VLAN, traffic, and policy management. Coupled with CiscoWorks, Cisco Resource Manager Essentials, a Web-based management tool,
offers automated inventory collection, software deployment, easy tracking of network changes, views into device availability, and quick isolation of
error conditions.
PRODUCT FEATURES AND BENEFITS
Feature
Benefit
Availability
Superior
Redundancy for
Fault Backup
•
IEEE 802.1D Spanning Tree Protocol support for redundant backbone connections and loop-free networks simplifies
network configuration and improves fault tolerance.
•
IEEE 802.1w Rapid Spanning- Tree Protocol (RSTP) provides rapid convergence of the spanning tree, independent of
spanning-tree timers.
•
Per VLAN Rapid Spanning Tree (PVRST+) allows rapid spanning-tree reconvergence on a per-VLAN spanning-tree
basis, without requiring the implementation of spanning-tree instances.
•
Support for Cisco Spanning Tree Protocol enhancements such as UplinkFast, BackboneFast, and PortFast technologies
ensures quick failover recovery and enhances overall network stability and availability.
•
Support for Cisco’s optional RPS 675, 675-watt redundant AC power system, which provides a backup power source
for one of six switches, for improved fault tolerance and network uptime.
•
Unidirectional link detection (UDLD) and aggressive UDLD detect and disable unidirectional links on fiber-optic
interfaces caused by incorrect fiber-optic wiring or port faults.
Integrated Cisco
IOS Software
Features for
Bandwidth
Optimization
•
Bandwidth aggregation through Cisco EtherChannel technology enhances fault tolerance and offers higher-speed
aggregated bandwidth between switches to routers and individual servers. Port Aggregation Protocol (PagP) is available
to simplify configuration.
to simplify configuration.
•
VLAN1 minimization allows VLAN1 to be disabled on any individual VLAN trunk link.
•
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) allows a spanning-tree instance per VLAN, enabling Layer 2
load sharing on redundant links.
•
Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from degrading overall system
performance.
•
Per VLAN Spanning Tree Plus (PVST+) allows for Layer 2 load sharing on redundant links to efficiently use the extra
capacity inherent in a redundant design.
•
VLAN Trunking Protocol (VTP) pruning limits bandwidth consumption on VTP trunks by flooding broadcast traffic
only on trunk links required to reach the destination devices. Dynamic Trunking Protocol (DTP) enables dynamic trunk
configuration across all ports in the switch.
configuration across all ports in the switch.
•
IGMPv3 snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive video
traffic to the requestors. MVR, IGMP filtering, and fast-join and immediate leave are available as enhancements. IGMP
Snooping time can be adjusted to optimize the performance of multicast data flows.
Snooping time can be adjusted to optimize the performance of multicast data flows.
Security
Networkwide
Security Features
•
A private VLAN edge provides security and isolation between ports on a switch, ensuring that voice traffic travels
directly from its entry point to the aggregation device through a virtual path and cannot be directed to a different port.
•
Support for the 802.1x standard allows users to be authenticated regardless of which LAN ports they are accessing, and
it provides unique benefits to customers who have a large base of mobile (wireless) users accessing the network.
–
802.1x with voice VLAN permits an IP phone access to the voice VLAN regardless of the authorized or
unauthorized state of the port.
unauthorized state of the port.
–
802.1x with Port Security authenticates the port and manages network access for all MAC addresses, including