Gigabit Ethernet Modules Installation & Configuration Note

This configuration note describes how to install and configure the Catalyst 5000 series three-port Gigabit Ethernet switching module and the nine-port Gigabit EtherChannel switching module. The following products are covered in this configuration note:

WS-X5403(=)	Three-port Gigabit Ethernet switching module
WS-X5410(=)	Nine-port Gigabit EtherChannel switching module
WS-G5484(=)	1000BaseSX Gigabit Interface Converter (GBIC)
WS-G5486(=)	1000BaseLX/LH GBIC
WS-G5487(=)	1000BaseZX GBIC

For a complete description of commands to configure and maintain Catalyst 5000 series switches, refer to the Software Configuration Guide for your switch and the Command Reference for your switch. For complete switch hardware configuration and maintenance procedures, refer to the Catalyst 5000 Series Installation Guide. For information on Catalyst 5000 series switching modules, refer to the Catalyst 5000 Series Module Installation Guide. These documents are available on the Cisco Connection Documentation, and in print.

Document Contents

This document contains these sections:

Gigabit Ethernet and Gigabit EtherChannel Modules
Gigabit Interface Converters
LEDs
Specifications
Safety Recommendations
Installation and Configuration
FCC Class A Compliance
Cisco Connection Online
Documentation CD-ROM

Gigabit Ethernet and Gigabit EtherChannel Modules

Table 1 describes the Catalyst 5000 series Gigabit Ethernet and Gigabit EtherChannel modules. The Gigabit Ethernet module is shown in Figure 1; the Gigabit EtherChannel Switching Module is shown in Figure 2.

Table 1 Gigabit Ethernet Modules

Model	Module	Description
WS-X5403	Gigabit Ethernet switching module (three port)	Three switched 1000-Mbps full-duplex ports¹
WS-X5410	Gigabit EtherChannel switching Module (GEM) (nine port)	Nine switched 1000-Mbps full-duplex ports¹

1 The modules use interchangeable Gigabit Interface Converters (GBICs) to interface between the network's optical fiber and the module ports. Three GBIC types are available: a 1000BaseSX, a 1000BaseLX/LH, and a 1000BaseZX. All three GBICs use SC-type connectors.

Figure 1 Gigabit Ethernet Switching Module (WS-X5403)

Figure 2 Gigabit EtherChannel Switching Module (WS-X5410)

Gigabit Interface Converters

A gigabit interface converter (GBIC) (see Figure 3) is a hot-swappable input/output (transceiver) device that plugs into a module's Gigabit Ethernet port, linking the port with the fiber-optic network. The following GBIC types are supported:

1000BaseSX (WS-G5484)
1000BaseLX/LH (WS-G5486)
1000BaseZX (WS-G5487)

Figure 3 Gigabit Interface Converter

Note Cisco 1000BaseLX/LH interfaces fully comply with the IEEE 802.3z 1000BaseLX standard. However, their higher optical quality allows them to reach 10 km over single-mode fiber (SMF) versus the 5 km specified in the standard.

Note Due to interoperability issues, Cisco does not support GBICs purchased from third-party vendors.

For GBIC installation information, refer to the "GBIC Handling Guidelines and Installation" section.

For GBIC cabling distance information, refer to the "GBIC Cabling Distances" section.

LEDs

Table 2 describes the LEDs on the Gigabit Ethernet and Gigabit EtherChannel switching modules.

Table 2 LED Descriptions

LED	State	Description
STATUS		The switch performs a series of self-tests and diagnostic tests.
	Green	All the tests pass.
	Red	A test other than an individual port test failed.
	Orange	System boot, self-test diagnostics running, or the module is disabled.
1-9¹		Individual port status.
	Green	The port is operational (a signal is detected).
	Orange	The link has been disabled by software.
	Flashing orange	The link has been disabled due to a hardware failure.
	Off	No signal is detected.

1On the Gigabit Ethernet switching module (WS-X5403), the individual port LEDs are labeled as LINK.

Specifications

This section lists the specifications for the Catalyst 5000 series Gigabit Ethernet and Gigabit EtherChannel switching modules. Specifications included are standards compliance, module specifications, and cabling distances.

Standards Compliance

Catalyst 5000 series Gigabit Ethernet and Gigabit EtherChannel switching modules comply with the standards listed in Table 3.

Table 3 Standards Compliance

Specification

Description

Compliance:

CE Marking

Safety

UL¹ 1950, CSA²-C22.2 No. 950, EN³ 60950, IEC⁴ 950, TS⁵ 001, AS/NZS⁶ 3260

EMI⁷

FCC⁸ Part 15 (CFR 47) Class A, ICES⁹-003 Class A

EN 55022 Class B, CISPR22 Class B, AS/NZS 3590 Class B, and VCCI Class B with FTP¹⁰ cables

1UL = Underwriters Laboratories

2CSA = Canadian Standards Association

3EN = Europäische Norm

4IEC = International Electrotechnical Commission

5TS = Technical Standard

6AS/NZS = Australian/New Zealand Standard

7EMI = electromagnetic interference

8FCC = Federal Communications Commission

9ICES = Interference-Causing Equipment Standard

10FTP = foil twisted-pair

Module Specifications

Table 4 lists the specifications for the Gigabit Ethernet and Gigabit EtherChannel switching modules.

Table 4 Module Specifications

Specification	Description
Dimensions (H x W x D)	WS-X5403—1.18 x 15.51 x 16.34 in. (30 x 394 x 415 mm) WS-X5410—2.36 x 15.51 x 16.34 in. (60 x 394 x 415 mm)¹
Weight	Minimum: 3 lb (1.36 kg) Maximum: 5 lb (2.27 kg)
Environmental Conditions:
Operating temperature	32 to 104° F (0 to 40° C)
Nonoperating temperature	-40 to 167° F (-40 to 75° C)
Humidity	10 to 90%, noncondensing
Connectors	SC²
RAM buffer memory	Gigabit Ethernet module (WS-X5403): 18 MB (6 MB per port) Gigabit EtherChannel module (WS-X5410): 6 MB shared between all ports
Maximum station-to-station cabling distance	Station-to-station cabling distance is dependent on the type of GBIC installed. Refer to Table 5 for a summary of cabling distance versus GBIC type.
Frame Processing	Transparent Bridging (IEEE 802.1d), trunking (IEEE 802.1q)
Network Management	Cisco Discovery Protocol, Ethernet MIB³ (RFC 1398), Interface Table (RFC 1573), Bridge MIB (RFC 1493), Ethernet Repeater MIB (RFC 1516), RMON⁴ MIB (RFC 1757), Cisco Workgroup MIB, and Cisco VLAN Trunk Protocol

1The Gigabit EtherChannel switching module (WS-X5410) occupies two slots in the switch chassis.

2All GBIC types have SC connectors.

3MIB = Management Interface Base

4RMON = Remote Monitoring

GBIC Cabling Distances

Table 5 lists the recommended maximum station-to-station cabling distances for the three types
of GBICs.

Table 5 GBIC Maximum Station-to-Station Cabling Distances

GBIC	Wavelength (nm)	Fiber Type	Core Size (um)	Modal Bandwidth (MHz.km)	Cable Distance
SX	850	MMF¹	62.5	160	722 ft (220 m)
			62.5	200	902 ft (275 m)
			50.0	400	1640 ft (500 m)
			50.0	500	1804 ft (550 m)
LX/LH	1300	MMF²	62.5	500	1804 ft (550 m)
			62.5	500	1804 ft (550 m)
			50.0	400	1804 ft (550 m)
			50.0	500	1804 ft (550 m)
		SMF³	9/10	-	6.2 miles (10 km)
ZX	1550	SMF	9/10	-	43.5 miles (70 km)
		SMF⁴	8	-	62.1 miles (100 km)

1MMF=multimode fiber

2Mode-conditioning patch cord (CAB-GELX-625) is required.

3SMF=single-mode fiber.

4Dispersion-shifted single-mode fiber-optic cable required for 100 km distance.

GBIC Cabling Restrictions

You must observe the following optical-fiber cabling restrictions when using GBICs:

The minimum cabling distance for 1000BaseSX and 1000BaseLX/LH GBICs is 6.5 feet (2 meters).
When using the 1000BaseLX/LH GBIC with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord between the MMF fiber-optic network and the GBIC.
You must insert a 10-dB inline optical attenuator between the fiber-optic network and the receiving port on the 1000BaseZX GBIC at each end of the link if the link length is less than 15.5 miles (25 km).
You must insert a 5-dB inline optical attenuator between the fiber-optic network and the receiving port on the 1000BaseZX GBIC at each end of the link if the link is greater than 15.5 miles (25 km), but less than 31 miles (50 km).

Safety Recommendations

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement.

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the appendix "Translated Safety Warnings" in the Catalyst 5000 Series Module Installation Guide.

Installation and Configuration

All Catalyst 5000 series switches support hot swapping, which lets you install, remove, replace, and rearrange switching modules without turning off the system power. When the system detects that a switching module has been installed or removed, it runs diagnostic and discovery routines automatically, acknowledges the presence or absence of the module, and resumes system operation with no operator intervention.

Only trained and qualified personnel should install or replace this equipment.

Invisible laser radiation can be emitted from the aperture ports of the single-mode products when no fiber-optic cable is connected. Avoid exposure and do not stare into open apertures. This product meets the Class 1 Laser Emission Requirement.

Port Availability Restrictions for the Gigabit Ethernet Switching Module (WS-X5403)

Depending on the system and placement of the Gigabit Ethernet switching module in the system's backplane, not all of the module ports may be active. Table 6 lists the Catalyst 5000 series switches and the Gigabit Ethernet switching-module ports that are available when the module is installed in that switch.

Table 6 Gigabit Ethernet Switching Module (WS-X5403) Restrictions in the Catalyst 5000 Series Switch

Switch	Port Restrictions
Catalyst 5002	Port 1 is active; ports 2 and 3 are inactive.
Catalyst 5000	Port 1 is active; ports 2 and 3 are inactive.
Catalyst 5505	With Supervisor Engine III: In slots 2 through 3—port 1 is active on bus A, port 2 is active on bus B, port 3 is active on bus C. In slot 4—port 1 is active on bus B, port 2 is active on bus A, and port 3 is active on bus C. In slot 5—port 1 is active on bus C, port 2 is active on bus B, and port 3 is active on bus A. With Supervisor Engine II: Port 1 is active; ports 2 and 3 are inactive.
Catalyst 5509	With Supervisor Engine III: Any slot—all ports are active. With Supervisor Engine II: Port 1 is active; ports 2 and 3 are inactive.
Catalyst 5500	With Supervisor Engine III In slots 2 through 5—port 1 is active on bus A, port 2 is active on bus B, and port 3 is active on bus C. In slots 6 through 8—port 1 is active on bus B; ports 2 and 3 are inactive. In slots 9 through 12—module cannot be inserted due to physical limitations. With Supervisor Engine II In slots 2 through 8—port 1 is active on bus B; ports 2 and 3 are inactive. In slots 9 through 12—module cannot be inserted due to physical limitations.

Switch Backplane Access for the Gigabit EtherChannel Switching Module (WS-X5410)

To maximize Gigabit EtherChannel switching module operation, connect the module to all three 1.2-Gb buses on the Catalyst 5505, Catalyst 5509, and Catalyst 5500 switch backplanes (the Catalyst 5000 switch has only one 1.2-Gb bus). See Table 7 for slot requirements.

Note The use of the Gigabit EtherChannel switching module in the Catalyst 5000 switch is supported with Gigabit EtherChannel switching module software release 4.3(1) when used with supervisor engine software release 4.3(1).

Note The Gigabit EtherChannel switching module occupies two slots; for example, if you install it in slot 3, it will physically occupy slots 2 and 3.

Table 7 Switch Backplane Access for the Gigabit EtherChannel Switching Module

Switch	Switch Backplane Access
Catalyst 5000 switch	Slots 3 through 5—Provide a single 1.2-Gb connection to the switch backplane.
Catalyst 5505 switch	Slots 3 through 5—Provide three 1.2-Gb connections to the switch backplane¹.
Catalyst 5509 switch	Slots 3 through 9—Provide three 1.2-Gb connections to the switch backplane¹.
Catalyst 5500 switch	Slots 3 through 5—Provide three 1.2-Gb connections to the switch backplane¹. Slots 6 through 8—Provide a single 1.2-Gb connection to the switch backplane. Slots 9 through 12 are reserved for LightStream 1010 or Catalyst 8510 modules.

1 In order to utilize all three of the 1.2-Gb buses, you must use a Supervisor Engine III.

Note To maximize available bandwidth between the Gigabit EtherChannel switching module and other modules in the chassis, you must use a Supervisor Engine III, which supports all three 1.2-Gb buses on the Catalyst 5505, Catalyst 5509, and Catalyst 5500 switch backplanes.

Note The use of the Gigabit EtherChannel switching module in Catalyst 5000 series switches using Supervisor Engine I or II is supported with Gigabit EtherChannel switching module software release 4.3(1) when used with supervisor engine software release 4.3(1).

Tools Required

You need a flat-blade screwdriver to remove any filler (blank) switching modules and to tighten the captive installation screws that secure the modules in their slots. Whenever you handle switching modules, you should use a wrist strap or other grounding device to prevent ESD damage. See the "Preventing Electrostatic Discharge Damage" section.

Removing Switching Modules

To remove a switching module from a Catalyst 5000 series switch, perform these steps:

During this procedure, wear grounding wrist straps to avoid ESD damage to the module. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.

To prevent ESD damage, handle switching modules by the carrier edges only.

Step 1 Disconnect any network interface cables attached to the ports on the switching module you intend to remove.

Step 2 Loosen the captive installation screws, as shown in Figure 4.

Figure 4 Ejector Levers and Captive Installation Screws

Step 3 Place your thumbs on the left and right ejector levers and simultaneously pull the levers outward to release the module from the backplane connector. Figure 4 shows a close-up of the right ejector lever.

Step 4 Grasp the switching module with one hand and place your other hand under the carrier to support and guide it out of the slot. Do not touch the printed circuit boards or connector pins.

Step 5 Carefully pull the switching module straight out of the slot, keeping one hand under the carrier to guide it.

Step 6 Place the switching module on an antistatic mat or antistatic foam, or immediately install it in another slot.

Step 7 If the slot is to remain empty, install a switching-module filler plate (part number 800-00292-01) to keep dust out of the chassis and to allow airflow through the switching-module compartment.

Always install a switching-module filler plate in empty switching module slots to allow cool air to flow across the modules.

Installing the Gigabit Ethernet Switching Module (WS-X5403)

To install the Gigabit Ethernet switching module (WS-X5403) in a Catalyst 5000 series switch, perform these steps:

During this procedure, wear grounding wrist straps to avoid ESD damage to the module. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.

To prevent ESD damage, handle switching modules by the carrier edges only. Also, when removing or inserting a module, always wear an ESD wrist strap connected to the Catalyst 5000 series switch ESD wrist strap connector.

Step 1 Take the necessary precautions to prevent ESD damage, as described in the section "Preventing Electrostatic Discharge Damage."

Step 2 Choose a slot for the new switching module. See Table 6 for restrictions. Ensure that you have enough clearance for any interface equipment that you will connect directly to the switching module ports. If possible, place switching modules between empty slots that contain only switching-module filler plates.

Step 3 Loosen the captive installation screws securing the switching-module filler plate (or the existing switching module) to the desired slot.

Step 4 Remove the switching-module filler plate (or the existing switching module). Save the switching-module filler plate for future use.

Note If you are removing an existing switching module, place one hand carefully under the carrier to support the switching module as you slide it out of the chassis. Place the removed module in an antistatic bag or on an antistatic surface.

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 switching module. Do not touch the printed circuit boards or connector pins.

Step 6 Align the edges of the switching-module carrier with the slot guides on the sides of the switch chassis as shown in Figure 5.

Note Use the same procedure for all the Catalyst 5000 series switches.

Figure 5 Installing the Gigabit Ethernet Switching Module in the Chassis

Step 7 Pivot the two module ejector levers out away from the faceplate as shown in Figure 5.

Step 8 Carefully slide the switching module into the slot until the notches on both ejector levers engage the chassis sides.

Step 9 Using the thumb and forefinger of each hand, simultaneously pivot in both ejector levers, as shown in Figure 6, to fully seat the switching module in the backplane connector.

Figure 6 Module Ejector Lever Operation

Always use the ejector levers when installing or removing switching modules. A module that is partially seated in the backplane can 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 5000 series switch through a Telnet session.

Step 10 Use a screwdriver to tighten the captive installation screws on each end of the switching-module faceplate.

Step 11 If not already done, install the GBICs. See the "GBIC Handling Guidelines and Installation" section for details.

Note If you are connecting the 1000BaseLX/LH (WS-X5486) GBICs to an MMF network, you must install a mode-conditioning patch cord. See the "Mode-Conditioning Patch Cord" section for details.

Step 12 Attach network interface cables or other devices to the interface ports. See the "Connecting GBICs to the Gigabit Ethernet and Gigabit EtherChannel Ports" section for details.

Step 13 Check the status of the module. See the "Checking the Interface Status" section for details.

Installing the Gigabit EtherChannel Switching Module (WS-X5410)

To install the Gigabit EtherChannel switching module (WS-X5410), perform these steps:

During this procedure, wear grounding wrist straps to avoid ESD damage to the module. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.

Tip

Because of the GEM's two-slot design, this module is more difficult to insert and remove than single-slot modules. Use care when inserting and removing the Gigabit EtherChannel switching module. Insertion and removal should be done in a single, smooth motion.

Step 1 Take the necessary precautions to prevent ESD damage, as described in the section "Preventing Electrostatic Discharge Damage" section.

Step 2 Choose a slot for the new switching module. See Table 7 for restrictions. Ensure that you have enough clearance for any interface equipment that you will connect directly to the switching-module ports. If possible, place switching modules between empty slots that contain only switching-module filler plates.

Note The Gigabit EtherChannel switching module requires two empty slots.

Step 3 Loosen the captive installation screws securing the switching-module filler plates (or the existing switching modules) to the desired slots.

Step 4 Remove the switching-module filler plates (or the existing switching modules). Save the switching-module filler plates for future use.

Note If you are removing an existing switching module, see the "Removing Switching Modules" section.

Step 6 Align the edges of the switching-module carrier with the slot guides on the sides of the switch chassis, as shown in Figure 7.

Note Align the edges of the switching-module carrier with the slot guides in the lower of the two empty slots.

Figure 7 Installing the Gigabit EtherChannel Switching Module in the Chassis

Step 7 Pivot the two module ejector levers out away from the faceplate as shown in Figure 7.

Step 8 Carefully slide the switching module into the slot until the notches on both ejector levers engage the chassis sides.

Step 9 Using the thumb and forefinger of each hand, simultaneously pivot in both ejector levers, as shown in Figure 8, to fully seat the switching module in the backplane connector.

Figure 8 Module Ejector Lever Operation

Always use the ejector levers when installing or removing modules. A module that is partially seated in the backplane can cause the system to halt and subsequently crash.

Step 10 Use a screwdriver to tighten the captive installation screws on the left and right sides of the module.

Step 11 If not already done, install the GBICs. See the "GBIC Handling Guidelines and Installation" section for details.

Note If you are connecting the 1000BaseLX/LH (WS-X5486) GBICs to an MMF network, you must install a mode-conditioning patch cord. See the "Mode-Conditioning Patch Cord" section for details.

Step 12 Attach network interface cables or other devices to the interface ports. See the "Connecting GBICs to the Gigabit Ethernet and Gigabit EtherChannel Ports" section for details.

Step 13 Check the status of the module. See the "Checking the Interface Status" section for details.

GBIC Handling Guidelines and Installation

This section describes how to install, remove, and maintain GBICs.

GBIC Handling Guidelines

Follow these GBIC handling guidelines:

GBICs are static sensitive. To prevent ESD, see the "Preventing Electrostatic Discharge Damage" section.
GBICs are dust sensitive. When the GBIC is stored or when a fiber-optic cable is not plugged in, always keep plugs in the GBIC optical bores.
The most common source of contaminants in the optical bores is from debris picked up on the ferrules of the optical connectors. Use an alcohol swab or Kim-Wipe to clean the ferrules of the optical connector.

Installing GBICs

To prevent premature failure of the GBIC, do not remove or insert the GBIC unnecessarily. GBICs have a lifetime of 100 to 500 removals and insertions.

When removing or inserting a GBIC, always wear an ESD wrist strap connected to the Catalyst 5000 series switch ESD wrist strap connector.

Note GBICs are hot-swappable in the Gigabit Ethernet and Gigabit EtherChannel switching modules.

To install a GBIC, perform these steps:

Step 1 Remove the GBIC from its protective packaging.

Step 2 Verify that the GBIC is the correct type for your network by checking the part number. The number indicates whether it is 1000BaseSX, 1000BaseLX/LH, or 1000BaseZX.

Note Three GBIC styles are available: WS-G5484 (1000BaseSX), WS-G5486 (1000BaseLX/LH), and WS-G5487 (1000BaseZX).

Step 3 Grip the sides of the GBIC with your thumb and forefinger; insert the GBIC into the slot on the front of the Gigabit Ethernet or Gigabit EtherChannel switching module (see Figure 9). GBICs are keyed to prevent incorrect insertion.

Note A maximum of 6 1000BaseZX GBICs are supported in a switch chassis.

Figure 9 Installing a GBIC in a Gigabit Ethernet Switching Module

Step 4 Slide the GBIC through the flap covering the slot opening. Continue sliding the GBIC into the slot until you hear a click. The click indicates that the GBIC is locked in the slot.

Invisible laser radiation may be emitted from the aperture ports of the single-mode fiber-optic modules when no cable is connected. Avoid exposure and do not stare into open apertures.

Step 5 When you are ready to attach the fiber-optic cable, remove the plugs from the GBIC. Save the plug for future use.

Note If you are connecting the 1000BaseLX/LH (WS-X5486) GBICs to an MMF network, you must install a mode-conditioning patch cord. See the "Mode-Conditioning Patch Cord" section for details.

Class 1 laser product.

Connecting GBICs to the Gigabit Ethernet and Gigabit EtherChannel Ports

To connect GBICs to the Gigabit Ethernet or Gigabit EtherChannel ports, perform these steps:

Step 1 Remove the plugs from the GBIC optical bores; store them for future use.

Step 2 Remove the plugs from the SC connector (see Figure 10) on the fiber-optic cable. Insert the connector into the GBIC.

Note When you plug the SC connector into the GBIC, make sure that both the tx (transmit) and rx (receive) fiber-optic cables are fully inserted into the SC connector.

Note If you are using the LX/LH GBIC with MMF, you need to install a patch cord between the GBIC and the MMF cable. See the "Mode-Conditioning Patch Cord" section for details.

Do not remove the plugs from the GBIC optical bores or the fiber-optic cable until you are ready to connect the cable. The plugs protect the GBIC optical bores and cable from contamination.

Figure 10 SC Connector

Removing GBICs

To remove a GBIC, perform these steps:

Step 1 Disconnect the fiber-optic cable from the GBIC SC-type connector.

Step 2 Release the GBIC from the slot by simultaneously squeezing the plastic tabs (see Figure 11).

Figure 11 Removing a GBIC in a Gigabit Ethernet Switching Module

Step 3 Slide the GBIC out of the slot.

Step 4 Install the plugs in the GBIC optical bores, and place the GBIC in protective packaging.

Mode-Conditioning Patch Cord

When using the 1000BaseLX/LH GBIC with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord (Cisco product number CAB-GELX-625 or equivalent) between the GBIC and the MMF cable on both the transmit and receive ends of the link. The patch cord is required for link distances greater than 984 feet (300 meters).

Note For link spans of less than 300 meters, the patch cord can be omitted; however, using the LX/LH GBIC with MMF and no patch cord for very short link distances (tens of meters) is not recommended. The result could be an elevated bit error rate (BER).

Note The patch cord is required to comply with IEEE standards. The IEEE found that link distances could not be met with certain types of fiber-optic cable due to a problem in the center of some fiber-optic cable cores. The solution is to launch light from the laser at a precise offset from the center by using the patch cord. At the output of the patch cord, the LX/LH GBIC is compliant with the IEEE 802.3z standard for 1000BaseLX. For a detailed description of this problem, refer to Appendix C, "Differential Mode Delay," in the Catalyst 5000 Series Supervisor Engine Installation Guide.

Note Cisco Gigabit Ethernet products have been tested and evaluated to comply with the standards listed in the "Standards Compliance" section. Equivalent cables should also meet these standards.

Patch Cord Configuration Example

Figure 12 shows a typical configuration using the patch cord.

Figure 12 Patch Cord Configuration

Installing the Patch Cord

Plug the end of the patch cord labeled "To Equipment" into the GBIC (see Figure 13). Plug the end labeled "To Cable Plant" into the patch panel. The patch cord is 9.84 feet (3 meters) long and has duplex SC-male connectors at each end.

Figure 13 Patch Cord Installation

Checking the Interface Status

Check the status of the interfaces as follows:

Ensure that the Status LED cycles from orange to green when you apply power to the module.
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 5000 series switch through a Telnet session.
If this installation is for a replacement switching module, enter the show module or show port [mod_num/port_num] command to verify that the system has acknowledged the new interfaces and brought them up.

Configuring Gigabit Ethernet and Gigabit EtherChannel Switching Modules

This section lists the default configurations of the Gigabit Ethernet and Gigabit EtherChannel switching modules and the commands you can use to customize your configuration.

Default Configuration

The features you can customize have default values that are likely to suit your environment and need not be changed. Table 8 lists the default values of these features.

Table 8 Default Values

Feature	Default Setting
Port enable state	All ports are enabled¹
Port name	None
Port priority	Normal
Port duplex setting	Full duplex²
Native VLAN	VLAN 1
Spanning-Tree Protocol	Enabled for VLAN 1
Spanning-tree port-VLAN cost	4
Spanning-tree port-VLAN priority	32
Gigabit EtherChannel³	Disabled

1Port availability for the Gigabit Ethernet module depends on which Catalyst 5000 series switch the module is installed in and in which slot the module is installed.

2Gigabit Ethernet module ports can operate only in full duplex.

3Gigabit EtherChannel is not supported on the WS-X5403.

Configuring the Ports

Table 9 lists the tasks and commands to configure the Gigabit Ethernet and Gigabit EtherChannel module ports.

Table 9 Quick Configuration

Task	Command
Setting Up the System
Setting the port name	set port name mod_num/port_num [name_string]
Setting the port priority level	set port level mod_num/port_num {normal \| high}
Verify the port configuration	show port mod_num/port_num
Checking Connectivity
Send an echo request from the Catalyst 5000 series switch to the host.	ping host
If the host is unresponsive, check the configuration for the IP address of the Catalyst 5000 series switch and default IP route, if appropriate.	show interface show ip route

Configuring Flow Control on the Gigabit Ethernet Switching Module (WS-X5403)

The Gigabit Ethernet switching modules use flow control, which inhibits packet transmission to the Gigabit Ethernet module for a period of time. If the Gigabit Ethernet switching module's receive buffer becomes full, the module transmits a "pause" packet that tells remote devices to delay sending more packets for a specified period of time. The Gigabit Ethernet switching module can also receive "pause" packets from other devices.

To configure flow control, enter the set port flowcontrol {receive | send} mod_num/port_num {off | on | desired} command. Table 10 lists the flow-control tasks and commands.

Table 10 Gigabit Ethernet set port flowcontrol Commands

Task	Command
Causes the local port to send flow-control packets to a remote device.	set port flowcontrol send mod_num/port_num on
Causes the local port to send flow-control packets if a remote device wants them (default).	set port flowcontrol send mod_num/port_num desired
Turns off a local port's ability to send flow- control packets to a remote device.	set port flowcontrol send mod_num/port_num off
Requires a local port to be flow controlled by a remote device.	set port flowcontrol receive mod_num/port_num on
Causes the local port to operate with an attached device that is required to send flow-control packets or with an attached device that is not required to but may send flow-control packets.	set port flowcontrol receive mod_num/port_num desired
Turns off an attached device's ability to send flow-control packets to a local port (default).	set port flowcontrol receive mod_num/port_num off

This example shows how to turn on transmit flow control:

 
Console> (enable) set port flowcontrol send 3/1 on

 
Port 3/1 will send flowcontrol to far end.

This example shows how to set transmit flow control to advertise that it will send flow-control frames if the attached device elects to receive them:

 
Console> (enable) set port flowcontrol send 3/1 desired

 
Port 3/1 will send flowcontrol to far end if far end supports it

This example shows how to turn off transmit flow control:

 
Console> (enable) set port flowcontrol send 3/1 off

 
Port 3/1 will not send flowcontrol to far end

This example shows how to turn on receive flow control:

 
Console> (enable) set port flowcontrol receive 3/1 on

 
Port 3/1 will require far end to send flowcontrol

This example shows how to set receive flow control to advertise that it will accept flow-control frames if the attached device elects to transmit them:

 
Console> (enable) set port flowcontrol receive 3/1 desired

 
Port 3/1 will allow far end to send flowcontrol

This example shows how to turn off receive flow control:

 
Console> (enable) set port flowcontrol receive 3/1 off

 
Port 3/1 will not allow far end to send flowcontrol

To display the current flow-control status and statistics, perform this task:

Task	Command
Display the current flow-control status and statistics.	show port flowcontrol

This example shows how to verify the flow-control configuration:

 
Console> show port flowcontrol

 
Port   Send Flowcontrol    Receive Flowcntl    RxPause TxPause 

 
       Admin    Oper       Admin   Oper 

 
-----  -----------------   -----------------   ------- -------

 
3/1    on       disagree   on       disagree   0       0 

 
3/2    off      off        off      off        0       0 

 
3/3    desired  off        desired  off        10      10 

Table 11 shows output field descriptions for the show port flowcontrol command:

Table 11 Output Field Descriptions

Field	Description
Port	Module and port number.
Send-Flowcontrol- Admin	Flow-control administrative state. Possible settings: on indicates the local port sends flow control to the far end; off indicates the local port does not send flow control to the far end; desired indicates the local end sends flow control to the far end if the far end supports it.
Send-Flowcontrol- Oper	Flow-control operation. Possible indications: disagree indicates the two ports could not agree on a link protocol.
Receive-Flowcntl- Admin	Flow-control administrative state. Possible settings: on indicates the local port requires the far end to send flow control; off indicates the local port does not allow the far end to send flow control; desired indicates the local end allows the far end to send flow control.
Receive-Flowcntl- Oper	Flow-control operation. Possible indications: disagree indicates the two ports could not agree on a link protocol.
RxPause	Count of pause frames received.
TxPause	Count of pause frames transmitted.

Configuring Flow Control on the Gigabit EtherChannel Switching Module (WS-X5410)

Ports can be characterized by their ability to generate and respond to flow control frames (pause frames) as well as the pause behavior they require of their link partner.

The Gigabit EtherChannel module's Gigabit Ethernet ports respond to received pause frames. Upon configuration, these ports advertise a pause capability. The ports at the two ends of the link negotiate a mutually acceptable flow-control configuration.

A pause frame is never generated by the Gigabit EtherChannel module's Gigabit Ethernet ports.

In all cases, pause frames received on the module are processed internally and are not switched through the system.

To configure flow-control, enter the set port flowcontrol {receive | send} [mod_num/port_num] {off | on | desired} command. Table 12 lists the flow-control tasks and commands.

Table 12 Gigabit EtherChannel set port flowcontrol Commands

Task	Command
Causes the local port to advertise that it will send flow-control frames¹.	set port flowcontrol send mod_num/port_num on
Causes the local port to advertise that it will send flow-control frames if the attached device elects to receive them¹ (default).	set port flowcontrol send mod_num/port_num desired
Turns off a local port's ability to send flow-control packets to a remote device.	set port flowcontrol send mod_num/port_num off
Requires a local port to be flow controlled by a remote device.	set port flowcontrol receive mod_num/port_num on
Causes the local port to operate with an attached device that is required to send flow-control packets or with an attached device that is not required to but may send flow-control packets.	set port flowcontrol receive mod_num/port_num desired
Turns off an attached device's ability to send flow-control packets to a local port (default).	set port flowcontrol receive mod_num/port_num off

1 Even though the GEM never sends flow-control frames, this configuration option is useful if the attached device refuses to complete negotiation unless the local device advertises that it will send flow-control frames. For cases where the attached device is willing to accept flow-control frames, there is no adverse effect in advertising to that attached device that the local device intends to send them.

This example shows how to turn transmit flow control on:

 
Console> (enable) set port flowcontrol send 5/1 on

 
Port 5/1 flow control send administration status set to on

 
(port will send flowcontrol to far end)

 
Console> (enable)

This example shows how to set transmit flow control to advertise that it will send flow-control frames if the attached device elects to receive them:

 
Console> (enable) set port flowcontrol send 5/1 desired

 
Port 5/1 flow control send administration status set to desired

 
(port will send flowcontrol to far end if far end supports it)

 
Console> (enable)

This example shows how to turn transmit flow control off:

 
Console> (enable) set port flowcontrol send 5/1 off

 
Port 5/1 flow control send administration status set to off

 
(port will not send flowcontrol to far end)

 
Console> (enable)

This example shows how to turn receive flow control on:

 
Console> (enable) set port flowcontrol receive 5/1 on

 
Port 5/1 flow control receive administration status set to on

 
(port will require far end to send flowcontrol)

 
Console> (enable)

This example shows how to set receive flow control to advertise that it will accept flow-control frames if the attached device elects to transmit them:

 
Console> (enable) set port flowcontrol receive 5/1 desired

 
Port 5/1 flow control receive administration status set to desired

 
(port will allow far end to send flowcontrol if far end supports it)

 
Console> (enable)

This example shows how to turn off receive flow control:

 
Console> (enable) set port flowcontrol receive 5/1 off

 
Port 5/1 flow control receive administration status set to off

 
(port will not allow far end to send flowcontrol)

 
Console> (enable)

To display the current flow-control status and statistics, perform this task:

Task	Command
Display the current flow-control status and statistics.	show port flowcontrol

This example shows how to verify the flow-control configuration:

 
Console> (enable) show port flowcontrol

 
Port   Send FlowControl    Receive FlowControl   RxPause TxPause Unsupported

 
       admin    oper       admin    oper                         opcodes

 
-----  -------- --------   -------- --------     ------- ------- -----------

 
 5/1   desired  off        off      off          0       0       0

 
 5/2   desired  off        off      off          0       0       0

 
 5/3   desired  off        off      off          0       0       0

.

.

 
Console> (enable)

Table 13 shows the Output field descriptions for the show port flowcontrol command.

Table 13 Output Field Descriptions

Field	Description
Port	Module and port number.
Send-Flowcontrol- Admin	Flow-control administrative state. Possible settings: on indicates the local port sends flow control to the far end; off indicates the local port does not send flow control to the far end; desired indicates the local end sends flow control to the far end if the far end supports it.
Send-Flowcontrol- Oper	Flow-control operation. Possible indications: disagree indicates the two ports could not agree on a link protocol.
Receive-Flowcntl- Admin	Flow-control administrative state. Possible settings: on indicates the local port requires the far end to send flow control; off indicates the local port does not allow the far end to send flow control; desired indicates the local end allows the far end to send flow control.
Receive-Flowcntl- Oper	Flow-control operation. Possible indications: disagree indicates the two ports could not agree on a link protocol.
RxPause	Count of pause frames received.
TxPause	Count of pause frames transmitted.
Unsupported opcodes	Count of pause frames with unsupported opcodes. These are frames with a valid destination address (01:80:c2:00:00:01) and a valid Ethernet type (0x8808) but an invalid opcode. Currently we recognize pause frames with an opcode of 1 (Xoff). All others are unsupported. Note that all frames received at this multicast address are discarded by the bridge.

Configuring Port Negotiation on the Gigabit EtherChannel Switching Module (WS-X5410)

Autonegotiation with Gigabit Ethernet behaves differently than autonegotiation with Ethernet or Fast Ethernet. To avoid link configuration problems, we recommend that you read and understand the information in this section and the information in the "Configuring Flow Control on the Gigabit Ethernet Switching Module (WS-X5403)" section.

Unlike 10/100 Fast Ethernet ports, autonegotiation with Gigabit Ethernet does not involve negotiating port speed. You cannot disable autonegotiation on Gigabit Ethernet ports by setting the port speed and duplex state. With Gigabit Ethernet, the link negotiation protocol is used to exchange flow-control behavior, remote fault information, and duplex information (even though the Catalyst 5000 series gigabit ports only support full-duplex operation). In Gigabit Ethernet, you can control whether the link negotiation prot

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