The Ansel Capstone 24t is a 24-port Fast Ethernet switch used to increase port density in a Layer 2/3 NuWave Architecture stack, giving you all the performance and modularity of a high-pricedchassis system in an economical, stackable design.

The Ansel Capstone 24t and NPI’s Ansel Keystone 24mg stack master canbe used to build a four-unit stack that scales from 48 to 96 ports, ideal for the rapidly changing needs of growing companies. One Ansel Capstone 24t and one Ansel Keystone 24mg, both with 24 full duplex, auto-negotiating 10/100Base-TX ports, create a 48-port stack. Add two more Ansel Capstone 24t switches for a 96-port stack.

You create higher density stacks by simply adding more Ansel Capstone units -- either the Ansel Capstone 24t or the Ansel Capstone 8f , an 8-port fiber version. Mix or match any combination of up to three of these switches with one Ansel Keystone 24mg. Regardless of the models you choose, this stack master sees and manages all Ansel Capstone switch ports as if they were built directly into the Ansel Keystone 24mg chassis.

High-Speed Stacking Interface Each Ansel Capstone switch connects to the master over a high-speed interface that keeps all switch ports available for network connections, and ensures that packets are transferred at wire speed, without blocking, on all ports throughout the stack.

This separate 8Gbps stacking interface connects each slave switch directly to the Ansel Keystone 24mg’s 64Gbps switching fabric, dedicating 6Gbps of bandwidth to packet data and sending management and control information over a separate 2Gbps link.

Quick Look

• 24 fixed, full duplex, auto-negotiating 10/100Base-TX ports

• Economical, chassis-type expansion to build stacks with up to 96 Fast Ethernet and two Gigabit ports

• Dedicated high bandwidth, non-blocking connections to Ansel Keystone 24mg stack master

• Store-and-Forward architecture with full error-checking — CRC, runt, dribble, alignment and jabber

• IP routing

• IP Multicast and protocol-based VLANs

• Quality of Service (QoS) to prioritize traffic

• Spanning Tree

• Complete management control using

Netscape TM or Internet Explorer TM

• Manageable through HP OpenView TM and other SNMP management systems

• In-band and out-of-band management and remote debug

• Suspend and resume operation for upgrade and maintenance

• Complete power on self-test and run time diagnostics

• Year 2000 compliant

• One-year warranty and free technical support,

toll free in the U.S.

Ansel Capstone 24t

Stack Specifications

Management

• Spanning Tree

• RMONv1 - Groups 1,2,3,9

• SNMPv1 including MIB-II, Etherlike MIB, Bridge MIB and a private MIB to control VLANs, Routing and Quality of Service

• Monitor traps, generate trap events, trap filtering and logging

• Control network access by time of day for protocol types, VLANs, groups of IP or MAC addresses or by port

• Suspend and resume operation for maintenance and upgrade

• Security extensions including password entry, access lists by IP address, configurable SNMP SET behavior

• Field upgradable firmware with TFTP

• Supports HTTP, HTML and JAVA

• Security levels for in-band and out-of-band management

• Options

- Netscape TM or Internet Explorer TM

- VT100 emulation through RS232C console port

- SNMP-compatible software such as HP OpenView TM

- TELNET

Routing

• Full IP routing with rates greater than 17 million pps in a fully-configured stack

• More than 8K direct routes can be held in hardware for true wire-speed performance

• Dynamic routing using RIP1, RIP2 and OSPF*

• Each port supports multiple IP addresses and can be configured and managed separately

VLANs

• Up to 4096 VLANs by protocol type, MAC address, switch port, IP subnet address, multicast address

• VLANs automatically created for IP subnets and multicast addresses using RIP, IGMP and GMRP snooping

• VLANs automatically created for network protocols using special NuWave snooping

• Dynamically tracks IP subnet, MAC address and multicast VLAN membership

• Configure and manage VLANs manually

• Supports routing between all IP VLANs

• Optional membership security and authentication for all VLANs

• 802.1Q dynamic VLAN membership propagation via GVRP

Switch Specifications

Ports

• 24 10/100Base-TX with RJ-45 UTP connectors

Port Memory

• 512KB per 8 ports, allocated dynamically

Address Support

• 24K MAC addresses per switch

Options

Redundant Power

• NW-RPS Redundant Power Supply to maintain power for up to six switches

Front Panel Indicators

• Ports Link/Activity, Speed 100

Dimensions

• 17.6” (44.5cm) x 1.75” (4.4cm) x 14” (35.6cm)

Rack mount

• Rack mount with kits included

• Wiring handles

Architecture

• High-performance, crosspoint switching fabric

Packet Forwarding

• Store-and-Forward

Error Checking

• CRC, runt, dribble, alignment, jabber

Standards Compliance

• 802.3u 100Base-TX

• 802.3x Flow Control

• 802.1Q VLAN Tagging

• 802.1D Bridging, QoS, Multicast Groups

• RFC 1157 SNMPv1

• RFC 1643 Ethernet Like MIB

• RFC 1213 SNMP MIB II

• RFC 854 TELNET

• RFC 1661 PPP

• RFC 1350 TFTP

• RFC 1542 BootP

• RFC 1757 RMON Groups 1,2,3,9

• RFC 2236 Internet Group Management Protocol

• RFC 1354 IP Forwarding Table MIB

• RFC 1058 RIP1

• RFC 1723 RIP2; RFC 1389 RIP2 MIB

• RFC 1493 Bridge MIB

Electromagnetic Compatibility

• FCC Class A, Part 15, subpart J, CISPR 22, CDOC Class A

Safety

• UL 1950, CSA-C22.2950, TUV EN60950, CE Mark

Power Consumption

• 100W

• 47-63Hz single phase

Input Voltage Range

• 100-240VAC

Input Frequency

• 50/60Hz

Operational Temperature

• 0° to 40°C

Operational Humidity

• 10° to 90° non-condensing

* scheduled for later release.