Foundry Networks OSI manual Application Notes

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NETWORK PLANNING

Application Notes

1.Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode.

2.Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub.

3.For network applications that require routing between dissimilar network types, you can attach the EdgeIron 4802CF units directly to a router.

4.As a general rule the length of fiber optic cable for a single switched link should not exceed:

•Gigabit Ethernet — 550 m (1805 ft) for multimode fiber or 5 km (16404 ft) for single-mode fiber.

However, power budget constraints must also be considered when calculating the maximum cable length for your specific environment.

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© 2003 Foundry Networks, Inc.

February 2003

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Contents Foundry EdgeIron 4802CF Installation Guide Page EC Conformance Declaration Class a CompliancesFCC Class a RFI EmissionIndustry Canada Class a Japan Vcci Class aImmunity Taiwan Bsmi Class a Australia AS/NZS 3548 1995 Class a Safety Compliance Warnhinweis Faseroptikanschlüsse Optische SicherheitUnderwriters Laboratories Compliance Statement Wichtige Sicherheitshinweise Germany Foundry Networks, Inc Contents Installing the Switch Making Network ConnectionsGlossary Index Foundry Networks, Inc Audience How to Get HelpChapter About this Guide NomenclatureMail Access Warranty CoverageWeb Access Telephone AccessChapter About OverviewSwitch Architecture Switching MethodManagement Options Description of Hardware 10BASE-T/100BASE-TX Ports1000BASE-T/SFP Ports Status LEDs Port Status LEDsCondition Status FDX Optional Redundant Power Unit Power Supply ReceptaclesFeatures and Benefits ConnectivityPerformance Management GvrpIntroduction to Switching Chapter Network PlanningApplication Examples Collapsed BackboneCentral Wiring Closet Central Wiring ClosetCollapsed Backbone Using Fiber Cable Remote Connections with Fiber CableMaking Vlan Connections Making Vlan ConnectionsConnectivity Rules Mbps Gigabit Ethernet Collision DomainMaximum Fast Ethernet Cable Distance Mbps Fast Ethernet Collision DomainMbps Ethernet Collision Domain Maximum Ethernet Cable DistanceApplication Notes Installing the Switch Selecting a SiteEquipment Checklist Package ContentsOptional Rack-Mounting Equipment Mounting Rack MountingAttaching the Brackets Desktop or Shelf Mounting Attaching the Adhesive FeetConnecting to a Power Source Power ReceptacleTwisted-Pair Devices Connecting Network DevicesChapter Making Network Connections Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Making Twisted-Pair ConnectionsWiring Closet Connections Wiring Closet Connections Power and Cooling Problems TroubleshootingDiagnosing Switch Indicators Appendix aInstallation In-Band AccessSpecifications Cable Types and Specifications Max. Length ConnectorAppendix B Cables RJ-45 Connector Pin Numbers Twisted-Pair Cable and Pin AssignmentsPin MDI-X Signal Name MDI Signal Name 100BASE-TX/10BASE-T Pin AssignmentsRJ-45 Pin Assignments Pin MDI Signal Name MDI-X Signal Name 1000BASE-T Pin AssignmentsCable Testing for Existing Category 5 Cable Adjusting Existing Category 5 Cabling to Run 1000BASE-T1000BASE-T Cable Requirements Console Port Pin Assignments DB-9 Port Pin AssignmentsConsole Port to 25-Pin DTE Port on PC PortFoundry Networks, Inc Appendix C Specifications Physical CharacteristicsPower Consumption TemperaturePower Supply HumiditySwitch Features Management Features StandardsSafety CompliancesCE Mark Emissions Foundry Networks, Inc Glossary 1000BASE-TAuto-Negotiation Collision Domain BandwidthCollision End StationIeee Gigabit EthernetFull Duplex Ieee 802.3abRJ-45 Connector Media Access Control MACRedundant Power Unit RPU Switched PortsTransmission Control Protocol/Internet Protocol TCP/IP Virtual LAN VlanGlossary-6 Foundry Networks, Inc Index NumericsIndex Index-3 Index-4 Foundry Networks, Inc

OSI specifications

Foundry Networks, a subsidiary of Broadcom Inc., has been a significant player in the networking industry, offering a range of products and solutions focused on high-performance and scalable networking. One of the key products from Foundry Networks is its operating system, known as Foundry Networks OSI (Operating System Interface). This proprietary operating system is designed to support the firm’s line of switches and routers, emphasizing robust performance, enhanced reliability, and comprehensive management capabilities.

A standout feature of Foundry Networks OSI is its modular architecture, which allows for easy upgrades and customization. This design enables users to add new protocols or services without disrupting existing functionalities. The OS is built on a multi-threaded architecture, ensuring efficient processing and handling of multiple tasks simultaneously. This feature is particularly crucial for environments requiring low latency and high throughput, such as data centers and enterprise networks.

Foundry Networks OSI supports a variety of advanced networking technologies, including Layer 2 and Layer 3 switching, VLAN (Virtual Local Area Network) support, and advanced routing protocols like OSPF (Open Shortest Path First) and BGP (Border Gateway Protocol). These technologies ensure that the network can efficiently handle traffic management while maintaining high availability and redundancy.

Another notable characteristic of the OSI is its support for IPv6, which is essential as more organizations transition to the newer protocol to accommodate the growing number of Internet-connected devices. Through enhanced quality of service (QoS) features, Foundry Networks OSI allows administrators to prioritize traffic, ensuring that mission-critical applications receive the bandwidth they require.

Security is a critical concern in modern networking, and Foundry Networks OSI addresses this need with robust security features. The system includes access control lists (ACLs), port security options, and support for 802.1X authentication to provide secure access to the network. These security measures help to protect the network from unauthorized access and potential threats.

Moreover, the OSI offers an intuitive management interface, simplifying the task of monitoring and configuring network devices. GUI-based and CLI (Command-Line Interface) management options cater to different preferences and skill sets, making it easier for network administrators to maintain and optimize their networks.

In summary, Foundry Networks OSI stands out for its modular design, support for advanced networking technologies, robust security features, and user-friendly management interface. These characteristics make it a suitable choice for organizations that prioritize high performance, reliability, and scalability in their networking solutions. As enterprises continue to evolve, Foundry Networks OSI remains a relevant and powerful tool in the networking landscape.
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