Foundry Networks OSI manual Connectivity Rules, Mbps Gigabit Ethernet Collision Domain

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NETWORK PLANNING

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the standard connectivity rules for Ethernet, Fast Ethernet, and Gigabit Ethernet. However, note that because switches break up the path for connected devices into separate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices.

1000 Mbps Gigabit Ethernet Collision Domain

Maximum 1000BASE-T Gigabit Ethernet Cable Length

Cable Type

 

 

 

Maximum Cable Length

Category 5, 5e, or 6 100-ohm UTP or STP

 

100 m (328 ft)

 

 

 

 

 

Maximum 1000BASE-SX Fiber Optic Cable Distance

 

 

 

 

 

Fiber Diameter

 

Fiber Bandwidth

 

Cable Length Range

 

 

 

 

 

 

62.5/125 micron

 

160 MHz/km

 

 

2-220 m (7-722 ft.)

multimode fiber (MMF)

 

 

 

 

 

 

 

200 MHz/km

 

 

2-275 m (7-902 ft.)

 

 

 

 

 

 

 

 

 

 

50/125 micron MMF

 

400 MHz/km

 

 

2-500 m (7-1641 ft.)

 

 

 

 

 

 

 

 

500 MHz/km

 

 

2-550 m (7-1805 ft.)

 

 

 

 

 

 

 

 

Maximum 1000BASE-LX Fiber Optic Cable Distance

 

 

 

 

Fiber Diameter

Fiber Bandwidth

 

Cable Length Range

 

 

 

 

9/125 micron single-mode

N/A

 

2 m - 5 km (7-16,404 ft)

fiber (SMF)

 

 

 

 

 

 

 

 

 

 

 

 

 

3-6

© 2003 Foundry Networks, Inc.

February 2003

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Contents Foundry EdgeIron 4802CF Installation Guide Page Compliances FCC Class aEC Conformance Declaration Class a RFI EmissionJapan Vcci Class a Industry Canada Class aImmunity Taiwan Bsmi Class a Australia AS/NZS 3548 1995 Class a Warnhinweis Faseroptikanschlüsse Optische Sicherheit Safety ComplianceUnderwriters Laboratories Compliance Statement Wichtige Sicherheitshinweise Germany Foundry Networks, Inc Contents Installing the Switch Making Network ConnectionsGlossary Index Foundry Networks, Inc How to Get Help Chapter About this GuideAudience NomenclatureWarranty Coverage Web AccessMail Access Telephone AccessChapter About OverviewSwitching Method Switch ArchitectureManagement Options 10BASE-T/100BASE-TX Ports Description of Hardware1000BASE-T/SFP Ports Port Status LEDs Status LEDsCondition Status FDX Optional Redundant Power Unit Power Supply ReceptaclesConnectivity Features and BenefitsPerformance 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 DomainMbps Fast Ethernet Collision Domain Mbps Ethernet Collision DomainMaximum Fast Ethernet Cable Distance Maximum Ethernet Cable DistanceApplication Notes Installing the Switch Selecting a SitePackage Contents Equipment ChecklistOptional Rack-Mounting Equipment Mounting Rack MountingAttaching the Brackets Desktop or Shelf Mounting Attaching the Adhesive FeetConnecting to a Power Source Power ReceptacleConnecting Network Devices Chapter Making Network ConnectionsTwisted-Pair Devices Cabling GuidelinesConnecting to PCs, Servers, Hubs and Switches Making Twisted-Pair ConnectionsWiring Closet Connections Wiring Closet Connections Troubleshooting Diagnosing Switch IndicatorsPower and Cooling Problems Appendix aInstallation In-Band AccessCable Types and Specifications Max. Length Connector SpecificationsAppendix B Cables RJ-45 Connector Pin Numbers Twisted-Pair Cable and Pin Assignments100BASE-TX/10BASE-T Pin Assignments Pin MDI-X Signal Name MDI Signal NameRJ-45 Pin Assignments Pin MDI Signal Name MDI-X Signal Name 1000BASE-T Pin AssignmentsAdjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 Cable1000BASE-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 CharacteristicsTemperature Power SupplyPower Consumption HumiditySwitch Features Management Features StandardsCompliances SafetyCE Mark Emissions Foundry Networks, Inc 1000BASE-T GlossaryAuto-Negotiation Bandwidth CollisionCollision Domain End StationGigabit Ethernet Full DuplexIeee Ieee 802.3abMedia Access Control MAC Redundant Power Unit RPURJ-45 Connector 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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