Eight-Port Gigabit Ethernet Interface Modules

This chapter describes the eight-port Gigabit Ethernet interface modules that are supported by the following systems:

• Catalyst 8540 CSR
  
  
• Catalyst 8540 MSR
  
  

This chapter includes the following sections:

• About Eight-Port Gigabit Ethernet Interface Modules
  
  
• Cabling Eight-Port Gigabit Ethernet Interface Modules
  
  

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Note   All information pertains to both the ATM and Layer 3 platforms, unless differences between the platforms or individual systems are noted in the text.

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About Eight-Port Gigabit Ethernet Interface Modules

The Catalyst 8540 CSR supports an eight-port Gigabit Ethernet interface module that provides 1000-Mbps Layer 2 or Layer 3 fiber-optic connections. The eight-port Gigabit Ethernet interface module is available with 16 KB, 64 KB, or 256 KB of memory. Routing tables use this memory.

Note   Local switching on the eight-port interface module provides non-blocking wire speed between the ports on this module at Layer 2. Layer 3 data transfer has a 400 percent oversubscription factor.

Interface Ports Supported

Table 23-1 identifies the maximum number of eight-port Gigabit Ethernet interface ports supported in each system.

Figure 23-1: Eight-Port Gigabit Ethernet Interface Module

Connections supported

The eight-port Gigabit Ethernet interface module with GBIC technology for flexible port interface types provides the following connections:

• Short wavelength multimode fiber
  
  
• Long wavelength multimode fiber
  
  
• Single-mode fiber
  
  
• Gigabit Ethernet over UTP
  
  

Cabling Eight-Port Gigabit Ethernet Interface Modules

This section describes supported cabling configurations for the eight-port interface module. It provides eight Gigabit Ethernet ports that have Gigabit Interface Converter (GBIC) modular transceivers and SC-type fiber connectors.

Note   See "Connectors and Connector Pinouts," for cabling requirements.

Eight Port Connectors

To connect the eight-port Gigabit Ethernet interface module to an external device, use an SC-type connector for multimode and single-mode fiber-optic traffic. (See Figure 23-2.)

Figure 23-2: Eight-Port Gigabit Ethernet Connections and LEDs

Note   See "Connectors and Connector Pinouts," for more SC-type connector information. Figure 2-12 shows a GBIC.

Eight-Port Gigabit Ethernet Interface Module LEDs

The LEDs provide status information for the network connection. Figure 23-2 shows the LEDs for the eight-port Gigabit Ethernet interface module. Table 23-2 describes the LEDs.