GarrettCom 6K25 manual Switching Functionality, Filtering and Forwarding, Address Learning

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Magnum 6K25 Managed Fiber Switch

Installation and User Guide (04/06)

4.0OPERATION

This chapter describes the functions and operation of the Magnum 6K25 Switch.

4.1Switching Functionality

A Magnum 6K25 provides switched connectivity at Ethernet wire-speed

among all of its ports. The Magnum 6K25 supports10/100Mbs for copper media and 10 or 100Mb separate traffic domains for fiber ports to maximize bandwidth utilization and network performance. All ports can communicate to all other ports in a Magnum 6K25, but local traffic on a port will not consume any of the bandwidth on any other port.

Magnum 6K25 units are plug-and-play devices. There is no software configuring necessary to be done for basic operation at installation or for maintenance. The only hardware configuration settings are user options for an UP-LINK Switch (resides inside the unit) on the 6K8-RJ45. Optional Half / Full duplex mode and 10 or 100Mbps selection for the switched ports must be configured through MNS software per unit as per the requirement. The internal functions of both are described below.

Filtering and Forwarding

Each time a packet arrives on one of the switched ports, the decision is taken to either filter or to forward the packet. Packets whose source and destination addresses are on the same port segment will be filtered, constraining them to that one port and relieving the rest of the network from having to process them. A packet whose destination address is on another port segment will be forwarded to the appropriate port, and will not be sent to the other ports where it is not needed. Traffic needed for maintaining the operation of the network (such as occasional multi-cast packets) are forwarded to all ports.

The Magnum 6K25 Switches operate in the store-and-forward switching mode, which eliminates bad packets and enables peak performance to be achieved when there is heavy traffic on the network.

Address Learning

All Magnum 6K25 units have address table capacities of 4K node addresses suitable for use in larger networks. They are self-learning, so as nodes are added, removed or moved from one segment to another, the 6K25 Switch automatically keeps up with node locations.

An address-aging algorithm causes least-used addresses to fall out in favor of frequently-used addresses. To reset the address buffer, cycle power down-and-up.

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Contents Managed Fiber Switch Trademarks Canadian Emission Contacting GarrettCom, IncIntroduction Table of ContentsRevisions TroubleshootingWww . GarrettCom . com Personal Hubs, 10Mb series Personal Switches , 10/100MbMedia Converters, 10Mb and 100Mb series Maximum 10 Mbps Ethernet Segment Lengths Technical SpecificationsPerformance Network Standards and Compliance, hardwareDC Power Supply Options Fiber Single-mode connector typesManagement Console connector Power Supply InternalAgency Approvals Alarm Contact OptionalNebs Testing and Certification Nebs certified Per-port MDI or Mdix on RJ-45Ordering Information 6K PoE Modules with 48VDC Pass-Through For Gigabit module configuration options6K PoE Modules with 48VDC Power Inside Introduction Inspecting the Package and Product Product Description Magnum 6K25 Managed Fiber Switch Magnum 6K25 and 6K25R chassis 1a Regular 6K25 front view, configured for 24 +1 Gb portsEight-port SFF fiber modules 6K8-MTRJ, 6K8-MLC, 100Mb fiber Eight-Port Copper Module, 6K8-RJ45 The 6K25-Series’s8-port New PoEPower Inside, model PI6KP8-45RJ MDIX, 10/100Mb 8-port ACT LK RX Gigabit 1000Mbps port modules Four-Port 10 Mb mm Fiber ST ModulesFrame Buffering and Flow Control Packet Prioritization, 802.1p QOS@ 1000Mb Fiber SC + 4@10/ 100Mb GarrettCom proprietary MIBs for Snmp Managed Network Software MNS-6K for Magnum 6K25-Series„ Features Fiber-Built-In „ Managed switching for high performance Ethernet LANs„ RJ-45 ports are MDI/MDIX supported „ Nebs and Etsi tested and certifiedApplications Example 1 Magnum 6K25 Switch for a Vlan applicationInternet Locating Magnum 6K25 Switches InstallationCopper Connecting Ethernet MediaConnecting Fiber Optic ST-type, twist-lock Ieee Standard Media Type Max. Distance Port Module FiberConnecting Single-Mode Fiber Optic Connecting Fiber Optic SC-type, Snap-InMedia Ieee Standard Media Ieee Standard ConnectorRack-mounting for 19 Retma racks, regular Magnum 6K25s Table-Top or Shelf Mounting2 Reverse Magnum 6K25 units, rack-mounted in a frame Rack-mounting, Reverse version of the Magnum 6K25sPowering the Magnum Managed Fiber Switch Preparation for Installing and Removing 6KPMs 6K25 Port Module 6KPM InstallationRemove Chassis Cover 1a Removing Chassis Cover Installing 6KPM Cards in the Magnum 6K25 Uplink 2f Securely latching up 6KPM Cards into a Magnum 6K25 Firmly. .5.3a Top View 6 retaining s crews shown by arrows Removing 6KPM CardsConsole DB-9 Port Connecting the Console Terminal to Magnum 6K25 ManagementRemove 6KPM Card DB-9PinConsole1port connector Pin Signal Description1 RS-232 DB-9 Console Com port Serial port pin assignments Filtering and Forwarding Switching FunctionalityAddress Learning PWR Status LEDsUp-link MDI-MDIX on RJ-45 port modules, for port 1 only Auto-CrossMDIX and Auto-negotiation, for RJ-45 portsWww . GarrettCom . com Flow-control, Ieee 802.3x standard ’cvr 6KP46KPM Module Description Introduction Magnum 6K25 Managed Fiber Switch Port ModulesDual speed copper ports. Mode ST-type connectorsSegments. When installed in a Switch, the copper port6KP4-F10ST, 4@10Mb multi-mode FX-ST twist lock Module Transceivers all in one module. This Mode 100Mbps fiber opticMode SC-type connectors. It Provides an advantage Fiber functions in one Module of the 6K25 SwitchWww . GarrettCom . com Activity FULL/HALF Port@ 100Mbps Multi-Mode Fiber portLink Placing more ports on one module Magnum 6KP8-45MTModule is a combo module with Copper and fiber Small Form Factor6KP8-RJ45 Twisted Pair, 10/100Mb 8-Port PoE LEDs Summary Fig. the top 8-RJ45 6KP8-45-2SLC 14 6KM-BLNK GBIC-SXSC Gigabit fiber1000Mb, multi-mode SC ConnectorBefore Calling for Assistance Return Material Authorization RMA Procedure When Calling for AssistanceNo Problem Found Shipping and Packaging Information Appendix B Internal DC Power Supply OptionsB1.0 Specifications for Magnum 6K25 SWITCHES, DC Power Power Supply Internal -48VDC OptionB3.0 Applications for DC Powered Switches B4.1 UL Requirements for DC-powered units B4.0 InstallationMagnum 6K25s. see figure at right B5.0 Operation B7.0 TroubleshootingB6.0 Ordering Information GND Appendix C Internal DC Dual-Source Power OptionC5.0 Installation C4.0 Features and Benefits of the DUAL-SOURCE DesignExample Magnum 6K25R-24VDC or Magnum 6K25R-125VDC C5.1 UL RequirementsC6.0 Ordering Information Example Magnum 6K25R-48VDC
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