Datasheet

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• Uni-Directional Link Detection (UDLD) for fiber links
• Switch Port Analyzer (SPAN) Enhancements
• HC RMON (high capacity, 64-bit counters)
Release 5.2CSX
• Layer 3 IP/IP multicast switching*
• Layer 3 IPX
®
Switching**
• IP address Load Balancing on Fast or Gigabit EtherChannel
• IEEE GARP VLAN Registration Protocol (GVRP)
• IEEE GARP Multicast Registration Protocol (GMRP)
• Spanning Tree Protocol (STP) enable/disable per VLAN
• Traceroute MIB
* Use of this feature requires the purchase of the Multilayer switching module. (See ordering information below.)
** Use of this feature requires the purchase of the Multilayer switching module and the IPX feature license. (See ordering information below.)
Table 1 Release 5.1CSX Software Feature-Function-Benefit Table
Feature Function Benefit
MultiModule
EtherChannel Support
• Up to eight ports may build a channel
• Ports within channel may be cross-module
• Allows up to 16 Gbps full duplex (8 Gbps each direction) between
switches
• Better redundancy for Fast EtherChannel and Gigabit EtherChannel
IP Address Supernetting • Supports variable length subnet masks for switch IP address on sc0
(Classless InterDomain Routing—RFC 1518)
• Allows the administrator to use any subnet mask length required for
internal IP addressing scheme
QoS PortLevel Delayand
Drop Threshold Settings
• Provides four user-defined levels of drop threshold management per
ingress port
• Provides two user-defined levels of drop threshold management for
each of two queues per egress port
• Provides a proven mechanism to ensure that higher priority traffic is
given preference when a port receives queue fills beyond a user-
defined threshold
• Provides a proven mechanism to ensure that higher priority traffic is
given preference when a port transmit queue fills beyond a user
defined threshold due to network congestion on the egress interface
QoS: 802.1p
Classification
• Allows the switch to set 802.1p class-of-service (CoS) ) values on
traffic received from a specific port
• Allows the switch to set 802.1p CoS values on traffic destined to a
specific host MAC address or VLAN pair
• Enables network-wide differentiated service levels for different
traffic on an ingress port basis
• Enables network-wide differentiated service levels for traffic
destined to specific hosts or servers
802.1Q to ISL VLAN
Mapping
• Allows mappingof uptoeight 802.1QVLANs numberedabove 1000to
ISL VLANs
• Allows seamless integration between ISL and 802.1Q VLAN
numbering
Uni-Directional Link
Detection (UDLD) for
Fiber Links
• UDLD is a new protocol developed by Cisco to detect unidirectional
connectivity on network links.
• When a unidirectional link is detected, UDLD shuts down the
affected port and alerts the user.
• Eliminatesa numberofdifficult-to-troubleshoot networkproblemson
fiber Ethernet links, including spanning-tree topology loops
SPAN (Switch Port
Analyzer) Enhancements
• Multiple concurrent SPAN Sessions
– Up to 2 Ingress (RX) or both (RX+TX) SPAN sessions
– Up to 4 egress (TX)-only SPAN sessions
• SPAN multiple source ports independent of VLAN membership
• SPAN multiple VLANs
• The SPAN source may now be configured to monitor traffic from
multiple VLANs. (Previously it was only possible to SPAN a single
VLAN.)
• These enhancements provide agreat deal of flexibility inconnecting
external analysis devices to a Catalyst switch.
• Allows use of intrusion detectiondevices such as Cisco NetRanger
®
at the same time that a Network Analysis Module or SwitchProbe or
other network analyzer is being used on the same switch
High Capacity
RMON Counters
• Provides 64-bit counters for mini-RMON MIB objects • Enhances mini-RMON capabilities and allows accurate tracking of
high-speed Gigabit Ethernet ports without wrapping counters