Datasheet

Cisco Systems, Inc.
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Table 1 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.
• Support for Cisco Spanning-Tree Protocol enhancements such as UplinkFast,
BackboneFast,and PortFast technologies ensures quick failover recovery, enhancing overall
network stability and availability.
• IEEE 802.1w Rapid Spanning-Tree Protocol (RSTP) provides rapid convergence of the
spanning tree, independent of spanning tree timers.
• The command switch redundancy enabled in Cisco CMS Software allows customers to
designate a backup command switch that takes over cluster management functions if the
primary command switch fails.
• Provides unidirectional link detection (UDLD) and Aggressive UDLD for detecting and
disabling unidirectional links on fiber-optic interfaces caused by incorrect fiber-optic wiring
or port faults.
IntegratedCiscoIOS
Software features
for bandwidth
optimization
• Bandwidth aggregation of up to 4 Gbps (two ports full duplex) through Cisco Gigabit
EtherChannel technology and up to 16 Gbps (eight ports full duplex) through Fast
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.
• Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from
degrading overall system performance.
• PVST+ and IEEE 802.1s Multiple Spanning-Tree Protocol (MSTP) allow 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 on
the switch.
• IGMP snooping provides for fast client joins and leaves of multicast streams and limits
bandwidth-intensive video traffic to only the requestors. Multicast VLAN Registration
(MVR), IGMP filtering, fast-join, and immediate leave are available as enhancements.
• MVR continuously sends multicast streams in a multicast VLAN while isolating the streams
from subscriber VLANs for bandwidth and security reasons.
• Supports additional frame formats: Ethernet II (tagged and untagged), 802.3 (SNAP
encapsulated, tagged and untagged frames).
Security
Network-wide
security features
• Filtering of incoming traffic flows based on Layer 2, Layer 3, or Layer 4 ACPs prevents
unauthorized data flows.
– The following Layer 2 ACPs or a combination can be used for security classification of
incoming packets: source MAC address, destination MAC address, and 16-bit Ethertype.
– The following Layer 3 and Layer 4 fields or a combination can be used for security
classification of incoming packets: source IP address, destination IP address, TCP source
or destination port number, UDP source, or destination port number. ACPs can also be
used] to filter based on DSCP values.
– Time-based ACPs allow configuration of differentiated services based on time periods.