Table Of Contents
Installing the Modules
Installing the Modules
Required Tools
Installing the Supervisor Engine and Switching Modules
Removing the Modules
Verifying Module Operation
Troubleshooting Switching Modules
Configuring Gigabit Ethernet Ports
WS-X4412-2GB-T Gigabit Ethernet Switching Module
WS-X4418-GB Gigabit Ethernet Switching Module
WS-X4448-GB-LX and WS-X4448-GB-SFP Gigabit Ethernet Switching Modules
WS-X4424-GB-RJ45 Gigabit Ethernet Switching Module
WS-X4448-GB-RJ45, WS-X4548-GB-RJ45, and WS-X4548-GB-RJ45V Gigabit Ethernet Switching Modules
Gigabit Ethernet Port Configuration Guidelines
Configuring Your Supervisor Engine or Switching Module
Replacing and Installing Uplink Modules
Replacing an Uplink Module
Adding an Uplink Module
Attaching Module Interface Cables
Contacting Customer Service
Installing the Modules
Warning 
Read the installation instructions before connecting the system to the power source. Statement 1004
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
Warning Ultimate disposal of this product should be handled according to all national laws and regulations. Statement 1040
Warning Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key or other means of security. Statement 1072
Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. Statement 43
This chapter describes how to install the supervisor engines and switching modules. The information is presented in these major sections:
•Installing the Modules
•Verifying Module Operation
•Troubleshooting Switching Modules
•Contacting Customer Service
The Catalyst 4003 switch can contain one supervisor engine (in slot 1) and any combination of supported switching modules in slots 2 and 3. The Catalyst 4006 switch can contain one supervisor engine (in slot 1) and any combination of supported switching modules in slots 2 through 6. The Catalyst 4503 switch can contain one supervisor engine (in slot 1) and any combination of supported switching modules in slots 2 and 3. The Catalyst 4506 switch can contain one supervisor engine (in slot 1), one and any combination of supported switching modules in slots 2 through 6. The Catalyst 4507R switch can contain one active supervisor engine (in slot 1), one redundant supervisor engine (in slot 2), and any combination of supported switching modules in slots 3 through 7.
Installing the Modules
This section describes how to install supervisor engines and switching modules in Catalyst 4500 series switches.
Warning Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing. Statement 1034
Required Tools
You will need these tools to install or remove supervisor engines and switching modules in the Catalyst 4500 series switches:
•Wrist strap or other grounding device
•Antistatic mat or antistatic foam
•Number 1 and number 2 Phillips screwdrivers for the captive installation screws on most modules
•3/16-inch flat-blade screwdriver for the captive installation screws on some modules
Installing the Supervisor Engine and Switching Modules
Warning Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing. Statement 1034
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051
Caution To prevent electrostatic discharge (ESD) damage, handle modules by the carrier edges only.
To install the supervisor engine and switching modules in a Catalyst 4500 series switch, follow these steps:
Step 1 Take the necessary precautions to prevent ESD damage, as described in the Regulatory Compliance and Safety Information document.
Step 2 Choose a slot for the new module. Check that you have enough clearance for any interface equipment that you will connect directly to the switching module ports.
Note You must install a supervisor engine in slot 1.
Step 3 Loosen the captive installation screws that secure the module filler plate (or the existing module) to the slot you want to use.
Step 4 Remove the module filler plate (or the existing module). Save the module filler plate for future use.
Note If you are removing an existing module, see the "Removing the Modules" section.
Step 5 To install the new module, hold the switching-module front panel with one hand, and place your other hand under the carrier to support the module, as shown in Figure 3-1. Do not touch the printed circuit boards or connector pins.
Figure 3-1 Installing the Module in the Chassis
Step 6 Align the edges of the switching-module carrier with the slot guides on the sides of the switch chassis.
Step 7 Pivot the two module ejector levers out away from the faceplate.
Step 8 Carefully slide the switching module into the slot until the notches on both ejector levers engage the chassis sides.
Step 9 Using your thumb and forefinger of each hand, simultaneously pivot in both ejector levers, as shown in Figure 3-2, to fully seat the module in the backplane connector.
Figure 3-2 Module Ejector Lever Operation
Caution Always use the ejector levers when installing or removing modules. A module that is only partially seated in the backplane will cause the system to halt and subsequently crash.
Note If you perform a hot swap, the console displays the message "Module n has been inserted." This message also appears if you are connected to the Catalyst 4500 series switch through a Telnet session.
Step 10 Use a screwdriver to tighten the captive installation screw on each end of the module faceplate (see Figure 3-2).
Step 11 Attach network interface cables or other devices to the interface ports.
Step 12 Check the status of the module as follows:
a. Ensure that the LED labeled STATUS is green (module operational).
b. When the switch is on line, enter the show module command. Verify that the system acknowledges the new module and that the module status is good.
Step 13 If the module is not operational, reseat it. If the module is still not operational, contact your customer representative.
Removing the Modules
Warning Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing. Statement 1034
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051
To remove a switching module from a Catalyst 4500 series switch, follow these steps:
Step 1 Disconnect any network interface cables attached to the module ports.
Step 2 With a Phillips screwdriver, loosen the captive screws at each end of the module.
Step 3 Place your thumbs on the left and right ejector levers. Pull the levers outward to release the module from the backplane connector.
Step 4 Grasp the module front panel with one hand, and place your other hand under the module to support and guide it out of the slot. Do not touch the printed circuit boards or connector pins.
Step 5 Pull the module straight out of the slot, keeping one hand under the module to guide it.
Step 6 Place the module on an antistatic mat, in an antistatic bag, or immediately reinstall it in another slot.
Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement 1029
Step 7 If the slot is to remain empty, install a module filler plate to keep dust out of the chassis, to maintain proper airflow through the chassis, to contain electromagnetic interference (EMI) that might disrupt other equipment, and to prevent exposure to high current inside the chassis.
Verifying Module Operation
When all interfaces are connected, check all connections, and then perform the following steps to power on the system and verify that it is operational:
Step 1 Before powering on the system, ensure that the following have occurred:
•Each module is inserted all the way into its slot, and all the captive installation screws are tightened
•All interface cable connections are secured
•Each power supply is inserted all the way into its bay, and the captive installation screws are tightened
•All power supply cords are securely connected to each power supply; do not connect the Catalyst 4500 series switch power cords to source power yet
Step 2 Check the console terminal and make sure it is on.
Step 3 Connect the power supply power cords to the source AC outlets. At the power-source end of the power cord, make sure the connector is installed securely in a grounded outlet and that the source power is within the range labeled on the back of the switch. When two power supplies are present, make sure that the second cord is connected to a separate line from the first, if possible.
Step 4 Verify that the LEDs labeled Good on the power supply front panels are green.
Step 5 Listen for the system fans to ensure that they are operational.
Step 6 While the system initializes, check that the LED labeled STATUS on the supervisor engine is orange and remains so until the boot is complete.
Note Many of the module port LEDs are not on until you configure the interfaces.
When the system boot is complete (it takes a few seconds), the supervisor engine begins to initialize the switching modules.
During this initialization, the LEDs on each module function differently (most flash on and off). You will know when the LED labeled STATUS on each module goes on. You will know that initialization is complete when the console screen displays a script and system banner.
Note When switching module LEDs are on, this does not necessarily mean that the interface ports are functional or enabled. Although the LEDs for many interface types go on at the initial system startup, they do not indicate an accurate status until the interface is configured.
Note If the system does not complete this verification process, see "Troubleshooting Switching Modules" section.
Troubleshooting Switching Modules
To help isolate a problem with a supervisor engine or switching module, follow these steps:
Step 1 Check that the LED labeled STATUS is green.
After the system initializes the interfaces, the LED labeled STATUS on the module should be green. If it is not, proceed to Step 2.
Step 2 Make sure the switching module is properly seated. If it is not, make sure to seat it properly and then check the LED labeled STATUS again to see if the switching module is operating properly. If it still is not operating properly, proceed to Step 3.
Step 3 Restart the system and check to see if the LED labeled STATUS is green.
Step 4 If there is still a problem, remove the module. Using a flashlight, check to see if the connector pins are damaged or bent.
Step 5 If you still experience trouble, contact a customer service representative for assistance.
Configuring Gigabit Ethernet Ports
The Gigabit Ethernet ports on some of the Gigabit Ethernet switching modules are oversubscribed. With an oversubscribed port, there may be a limit on the amount of data that a group of ports can receive without dropping packets. The following sections describe the switching modules with oversubscribed ports:
•WS-X4412-2GB-T Gigabit Ethernet Switching Module
•WS-X4418-GB Gigabit Ethernet Switching Module
•WS-X4448-GB-LX and WS-X4448-GB-SFP Gigabit Ethernet Switching Modules
•WS-X4424-GB-RJ45 Gigabit Ethernet Switching Module
•WS-X4448-GB-RJ45, WS-X4548-GB-RJ45, and WS-X4548-GB-RJ45V Gigabit Ethernet Switching Modules
WS-X4412-2GB-T Gigabit Ethernet Switching Module
The WS-X4412-2GB-T Gigabit Ethernet switching module offers two dedicated 1000BASE-X (GBIC) ports (ports 13 and 14) and 12 oversubscribed (possibly blocking) 1000BASE-T Gigabit Ethernet ports. The module provides a Gigabit Ethernet network backbone connection for multiple servers and high-end workstations. Ports 13 and 14 each have 1-Gbps dedicated bandwidth. These ports are typically used to connect to the network backbone.
The 12 oversubscribed ports (ports 1 through 12) are multiplexed in three groups of four ports each:
•Ports 1, 2, 3, 4
•Ports 5, 6, 7, 8
•Ports 9, 10, 11, 12
The four ports within each group use common circuitry that effectively multiplexes the group into a single, nonblocking, full-duplex Gigabit Ethernet connection to the internal switch fabric. For each group of four ports, frames received are buffered and sent to the common Gigabit Ethernet link to the internal switch fabric. If the amount of data received for a port begins to exceed buffer capacity, flow control sends pause frames to the remote port to temporarily stop traffic and prevent frame loss.
Note You can disable flow control on a port if it is the only port within a group that is connected.
When transmitting, each port in the group shares the bandwidth of a Gigabit link. However, each port operates independently so that flow control, or configuration of one port, does not block or degrade the performance of another port in that group.
When configuring a network, you should use the dedicated 1-Gbps bandwidth ports when nonblocking performance without flow control is needed, such as during connection to another internetworking device.
When the Gigabit Ethernet switching module is not fully utilized, you can connect balancing port connections across port groupings to maximize available bandwidth. For example, with the WS-X4418-GB Gigabit Ethernet switching module, you can connect ports from different groups, such as ports 3, 4, 11, or 12 (in any order) before you connect ports from the same group, such as ports 3 and 5, or ports 4, 6, and 8.
WS-X4418-GB Gigabit Ethernet Switching Module
The WS-X4418-GB Gigabit Ethernet switching module offers two dedicated 1000BASE-X (GBIC) ports (ports 1 and 2) and 16 oversubscribed (possibly blocking) 1000BASE-X (GBIC) Gigabit Ethernet ports. The module provides a Gigabit Ethernet network backbone connection for multiple servers and high-end workstations.
Ports 1 and 2 each have 1-Gbps dedicated bandwidth. These ports are typically used to connect to the network backbone.
The 16 oversubscribed ports (ports 3 through 18) are multiplexed in four groups of four ports each:
•Ports 3, 5, 7, 9
•Ports 4, 6, 8, 10
•Ports 11, 13, 15, 17
•Ports 12, 14, 16, 18
Lines on the front panel of the WS-X4418-GB are used to frame the port groups. (See Figure 1-30.)
Each group of four ports shares 1-Gbps of bandwidth.
The oversubscribed Gigabit ports are typically used to connect to clients or servers equipped with Gigabit Ethernet network interface cards (NICs).
WS-X4448-GB-LX and WS-X4448-GB-SFP Gigabit Ethernet Switching Modules
The WS-X4448-GB-LX and WS-X4448-GB-SFP switching modules have 48 oversubscribed ports in six groups of eight ports each:
•Ports 1, 3, 5, 7, 9, 11, 13, 15
•Ports 2, 4, 6, 8, 10, 12, 14, 16
•Ports 17, 19, 21, 23, 25, 27, 29, 31
•Ports 18, 20, 22, 24, 26, 28, 30, 32
•Ports 33, 35, 37, 39, 41, 43, 45, 47
•Ports 34, 36, 38, 40, 42, 44, 46, 48
The eight ports within each group use common circuitry that effectively multiplexes the group into a single, nonblocking, full-duplex Gigabit Ethernet connection to the internal switch fabric. For each group of eight ports, frames received are buffered and sent to the common Gigabit Ethernet link to the internal switch fabric. If the amount of data received for a port begins to exceed buffer capacity, flow control sends pause frames to the remote port to temporarily stop traffic and prevent frame loss.
Note You can disable flow control on a port if it is the only port within a group that is connected.
When transmitting, each port in the group shares the bandwidth of a Gigabit Ethernet link. However, each port operates independently so that flow control, or configuration of one port, does not block or degrade the performance of another port in that group.
When the Gigabit Ethernet switching module is not fully utilized, you can connect balancing port connections across port groupings to maximize available bandwidth. For example, you can connect ports from different groups, such as ports 3, 4, 19, or 20 (in any order) before you connect ports from the same group, such as ports 3 and 5, or ports 4, 6, and 8.
WS-X4424-GB-RJ45 Gigabit Ethernet Switching Module
The WS-X4424-GB-RJ45 switching module has 24 oversubscribed ports in six groups of four ports each:
•Ports 1, 2, 3, 4
•Ports 5, 6, 7, 8
•Ports 9, 10, 11, 12
•Ports 13, 14, 15, 16
•Ports 17, 18, 19, 20
•Ports 21, 22, 23, 24
The four ports within each group use common circuitry that effectively multiplexes the group into a single, nonblocking, full-duplex Gigabit Ethernet connection to the internal switch fabric. For each group of four ports, frames received are buffered and sent to the common Gigabit Ethernet link to the internal switch fabric. If the amount of data received for a port begins to exceed buffer capacity, flow control sends pause frames to the remote port to temporarily stop traffic and prevent frame loss.
Note You can disable flow control on a port if it is the only port within a group that is connected.
When transmitting, each port in the group shares the bandwidth of a Gigabit Ethernet link. However, each port operates independently so that flow control, or configuration of one port, does not block or degrade the performance of another port in that group.
When the Gigabit Ethernet switching module is not fully utilized, you can connect balancing port connections across port groupings to maximize available bandwidth. For example, with the WS-X4424-RJ45 10/100/1000 switching module, you can connect ports from different groups, such as ports 4, 8, 12, or 16 (in any order) before you connect ports from the same group, such as ports 1, 2, 3, and 4.
WS-X4448-GB-RJ45, WS-X4548-GB-RJ45, and WS-X4548-GB-RJ45V Gigabit Ethernet Switching Modules
The WS-X4448-GB-RJ45, WS-X4548-GB-RJ45, and WS-X4548-GB-RJ45V switching modules have 48 oversubscribed ports in six groups of eight ports each:
•Ports 1, 2, 3, 4, 5,6, 7, 8
•Ports 9, 10, 11, 12, 13, 14, 15, 16
•Ports 17, 18, 19, 20, 21, 22, 23, 24
•Ports 25, 26, 27, 28, 29, 30, 31, 32
•Ports 33, 34, 35, 36, 37, 38, 39, 40
•Ports 41, 42, 43, 44, 45, 46, 47, 48
The eight ports within each group use common circuitry that effectively multiplexes the group into a single, nonblocking, full-duplex Gigabit Ethernet connection to the internal switch fabric. For each group of eight ports, frames received are buffered and sent to the common Gigabit Ethernet link to the internal switch fabric. If the amount of data received for a port begins to exceed buffer capacity, flow control sends pause frames to the remote port to temporarily stop traffic and prevent frame loss.
Note You can disable flow control on a port if it is the only port within a group that is connected.
When transmitting, each port in the group shares the bandwidth of a Gigabit Ethernet link. However, each port operates independently so that flow control, or configuration of one port, does not block or degrade the performance of another port in that group.
When the Gigabit Ethernet switching module is not fully utilized, you can connect balancing port connections across port groupings to maximize available bandwidth. For example, with the WS-X4448-GB-RJ45 10/100/1000 switching module, you can connect ports from different groups such as ports 4, 12, 20, or 30 (in any order) before you connect ports from the same group, such as ports 1, 2, 3, 4, 5, 6, 7 and 8.
Gigabit Ethernet Port Configuration Guidelines
When configuring oversubscribed ports, follow these guidelines:
•Enable flow control on the ports when using more than one port per group. The device to which each port is connected must be able to process pause frames. The switch software checks flow control during auto negotiation.
•When using flow control, connect the ports to end devices only. Using flow control between internetworking devices can propagate congestion problems through the network.
•The pause-frame flow-control function will not prevent packet loss when it is used on links over 3.1 miles (5 km). Some GBIC types are capable of operating at distances over 3.1 miles (5 km), but if you are using links with distances of more than 3.1 miles (5 km), do not use the ports with flow control.
•When setting flow control on Catalyst operating system supervisor engines (Supervisor Engine I and II), use the set port flowcontrol command to set the flow-control value for a particular port as follows:
set port flowcontrol {send | receive} [mod_num/port_(3to18)] {on
|off | desired}
The default for send is on; the default for receive is desired.
For information about flow control or auto negotiation in Cisco IOS supervisor engines (Supervisor Engines II, II-plus, III, and IV), refer to the Software Configuration Guide for your switch and applicable software release.
Configuring Your Supervisor Engine or Switching Module
For information and commands to configure your supervisor engine module or switching module, refer to the Software Configuration Guide for your switch.
Replacing and Installing Uplink Modules
This section describes how to replace and install uplink modules.
Replacing an Uplink Module
Caution When removing or inserting a module, always wear an ESD wrist strap connected to the ESD wrist strap connector or to a connection that is properly grounded.
To remove and replace an uplink module, follow this procedure:
Step 1 If you have not already done so, remove the switching module from the Catalyst 4500 series switch. See the "Removing the Modules" section for removal information.
Step 2 Place the switching module on an antistatic work surface.
Step 3 Use a Phillips screwdriver to remove the screws that secure the uplink module to the switching module. (See Figure 3-3.)
Step 4 Carefully pull the uplink module up and out of the switching module.
Note The rear of the uplink module connects to the switching module through connectors on the bottom side of the uplink module. Use care when unseating the uplink module from these connectors.
Step 5 Place the removed uplink module in an antistatic bag.
Step 6 Remove the new uplink module from its antistatic bag and install it in the switching module. Use care when seating the rear of the uplink module into the connectors.
Step 7 Ensure that the uplink module is securely seated in the switching module.
Caution Ensure that the module is securely seated
before installing and tightening the securing screws. Using the screws to seat the module could warp the module.
Step 8 Use a Phillips screwdriver to install the screws that secure the uplink module to the switching module. (See Figure 3-3.)
Step 9 Install the switching module into the Catalyst 4500 series switch. See the "Installing the Modules" section for more information.
Figure 3-3 Removing or Replacing an Uplink Module
Adding an Uplink Module
To add an uplink module to a switching module with no uplink module, follow this procedure:
Step 1 If you have not already done so, remove the switching module from the Catalyst 4500 series switch. See the "Removing the Modules" section.
Step 2 Use a Phillips screwdriver to remove the two screws that secure the blank uplink module filler plate from the switching module. Set the screws in a secure place because they will be reused.
Step 3 Use a Phillips screwdriver to remove the two screws from the two standoffs that will secure the rear of the uplink module. Set the screws in a secure place for reuse later.
Step 4 Remove the new uplink module from its antistatic bag and install it in the switching module. Use care when seating the rear of the uplink module into the connectors.
Step 5 Ensure that the uplink module is securely seated in the switching module.
Caution Ensure that the module is securely seated
before installing and tightening the securing screws. Using the screws to seat the module could warp the module.
Step 6 Use a Phillips screwdriver to install the screws that secure the uplink module to the switching module. (See Figure 3-3.)
Step 7 Install the module into the Catalyst 4500 series switch (see the "Installing the Modules" section).
Attaching Module Interface Cables
Figure 3-4 through Figure 3-10 show the connector types used to attach interface cables to the supervisor engine and switching modules.
Figure 3-4 RJ-21 Telco Interface 90-Degree Cable Connector
Figure 3-5 RJ-21 Telco Interface 180-Degree Cable Connector
Figure 3-6 RJ-45 Connector
Figure 3-7 Single LC Connector
Figure 3-8 Double LC Connector
Figure 3-9 SC-Type Fiber-Optic Connector
Note Always keep caps and plugs on the fiber-optic connectors on the cable and the switch when they are not in use.
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051
Figure 3-10 MT-RJ Fiber-Optic Connector
When you are connecting MT-RJ cables to a module, make sure that you firmly press the network cable plug into the socket. The upper edge of the plug must snap into the upper front edge of the socket. You might hear an audible click. Gently pull on the plug to determine whether or not the plug is locked into the socket.
To disconnect the plug from the socket, press down on the raised portion on top of the plug, releasing the latch. You should hear an audible click, which would indicate that the latch has released. Carefully pull the plug out of the socket.
Note When you disconnect the fiber-optic cable from the module, grip the body of the connector. Do not grip the connector jacket sleeve. Gripping the sleeve can, over time, compromise the integrity of the fiber-optic cable termination in the MT-RJ connector.
Always make sure that you insert the connector completely into the socket. This is especially important when you are making a connection between a module and a long-distance (2 km) or possibly a highly attenuated network. If the link LED does not light, try removing the network cable plug and reinserting it firmly into the module socket.
Dirt or skin oils also may have accumulated on the plug faceplate (around the optical-fiber openings), which can generate significant attenuation and reduce the optical power levels below threshold levels so that a link cannot be made.
To clean the MT-RJ plug faceplate, follow this procedure:
Step 1 Using a lint-free tissue soaked in 99 percent pure isopropyl alcohol, gently wipe the faceplate.
Step 2 Remove any residual dust from the faceplate with compressed air before installing the cable.
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051
Note Make sure that dust caps are installed on all unused module connectors and unused network fiber-optic cable connectors.
Contacting Customer Service
If you are unable to solve a startup problem after using the troubleshooting suggestions in this chapter, contact the Cisco Technical Assistance Center (TAC) for assistance and further instructions. See the "Obtaining Technical Assistance" section for more information.
Before you call, have the following information ready to help your customer service representative assist you as quickly as possible:
•The date you received the switch
•Your chassis serial number (located on a label just below the right power supply)
•The module serial number (See )
•The type of software you have and its release number
•Your maintenance agreement or warranty information
•A brief description of the problem
•A brief explanation of the steps you have already taken to isolate and resolve the problem
