Cisco Catalyst 3850 - Manual

C H A P T E R 1 Product Overview The Catalyst 3850 family of switches are Ethernet switches to which you can connect devices such as CiscoIP Phones, Cisco Wireless Access Points, workstations, and other network devices such as servers, routers,and other switches. The Catalyst 3850 switches support s...

Description SupportedSoftwareImage Switch Model Stackable 48 10/100/1000 Ethernet ports, 1 network moduleslot, 350-W power supply IP Services Catalyst 3850-48T-E Stackable 24 10/100/1000 PoE+ ports, 1 network moduleslot, 715-W power supply IP Services Catalyst 3850-24P-E Stackable 48 10/100/1000 PoE...

SFP module slots (downlink) 6 Mode button 2 Network module 7 Status LEDs 3 USB mini-Type B (console) port 4 10/100/1000 Ports The 10/100/1000 ports use RJ-45 connectors with Ethernet pinouts. The maximum cable length is 328 feet(100 meters). The 100BASE-TX traffic requires Category 5, Category 5e, o...

Management Ports The management ports connect the switch to a PC running Microsoft Windows or to a terminal server. • Ethernet management port. See Ethernet Management Port, on page 23 . • RJ-45 console port (EIA/TIA-232). See RJ-45 Console Port, on page 23 . • USB mini-Type B console port (5-pin co...

Use only Cisco SFP and SFP+ modules on the switch. For the latest information about supported SFP andSFP+ modules, refer to the Cisco Transceiver Modules Compatibility Information at http://www.cisco.com/ en/US/products/hw/modules/ps5455/products_device_support_tables_list.html For information about...

SYST LED Table 3: SYST LED System Status Color System is not powered on. Off System is operating normally. Green POST in progress. Blinking green System is receiving power but is not functioning properly. Amber There is a fault with one of the following: • Network module (non traffic-related) • Powe...

For information about the XPS 2200, see the Cisco eXpandable Power System 2200 Hardware Installation Guide on Cisco.com: http://www.cisco.com/go/xps2200_hw Port LEDs and Modes Each Ethernet port, 1-Gigabit Ethernet module slot, and 10-Gigabit Ethernet module slot has a port LED.These port LEDs, as a...

Meaning Port LED Color Port Mode No stack member corresponding to that member number. Off STACK (stackmember) Stack member number. Blinking green Member numbers of other stack member switches. Green PoE+ is off. If the powered device is receiving power from an ACpower source, the port LED is off eve...

S-PWR LED Table 8: S-PWR LED Description Color StackPower cable is not connected, or the switch is in standalone mode. Off Each StackPower port is connected to another switch. Green This appears on the switch in a StackPower ring configuration that detects an openring or has only one StackPower cabl...

as these represent the member numbers of other switches in the stack. The other port LEDs are off becausethere are no more members in the stack. Figure 6: STACK LED LED blinks green to show that this is switch 1in the stack. 4 Stack member 1 1 LED is solid green to show that switch 2 is astack membe...

UID/Beacon LED The UID and the Beacon LED can be turned on by the administrator to indicate that the switch needs attention.It helps the administrator identify the switch. The beacon can be turned on by either pressing the UID buttonon the switch front panel, or by using the CLI. There is a blue bea...

Network Module Link Status Color Activity on a link; no faults. The LED will blink green even when there is very little controltraffic. Note Blinking green Link is off due to a fault or because it has exceeded a limit set in the switch software. Link faults occur when noncompliant cabling is connect...

Figure 9: Catalyst 3850-12S and 3850-24S Switches Switch Rear Panel StackWise port connector 7 Ground connector 1 StackPower connector 8 CONSOLE (RJ-45 console port) 2 AC OK (input) status LED 9 MGMT (RJ-45 10/100/1000 managementport) 3 PS OK (output) status LED 10 RESET button 4 Power supply module...

StackWise Ports StackWise ports are used to connect switches in StackWise stacking configurations. The Catalyst 3850 switchships with a 0.5-meter StackWise cable that you can use to connect the StackWise ports. For more informationon StackWise cables, see Connecting to the StackWise Ports, on page 3...

Fan Module The switch has three internal hot-swappable 12-V fan modules (FAN-T1=). The air circulation system consistsof the fan modules and the power supply modules. The airflow patterns vary depending on the power supplyconfiguration. When the fan modules are operating properly, a green LED is on ...

StackPower Connector The Catalyst 3850 switches have a StackPower connector for use with Cisco StackPower cables to configurea switch power stack that includes up to nine switches. A switch power stack can be configured in redundantor power-sharing mode. You can order these StackPower cables from yo...

Management Options • Cisco Network Assistant Cisco Network Assistant is a PC-based network management GUI application for LANs. You can usethe GUI to configure and manage switch clusters or standalone switches. Cisco Network Assistant isavailable at no cost and can be downloaded from this URL: http:...

C H A P T E R 2 Switch Installation For initial switch setup, assigning the switch IP address, and powering on information, see the switch gettingstarted guide on Cisco.com. This chapter contains these topics: • Preparing for Installation, page 25 • Planning a Switch Data Stack, page 28 • Data Stack...

Ultimate disposal of this product should be handled according to all national laws and regulations. Statement1040 Warning To prevent the system from overheating, do not operate it in an area that exceeds the maximumrecommended ambient temperature of: <113°F (45°C). Statement 1047 Warning Installa...

• Temperature around the unit does not exceed 113°F (45°C). If the switch is installed in a closed ormultirack assembly, the temperature around it might be greater than normal room temperature. • Humidity around the switch does not exceed 95 percent. • Altitude at the installation site is not greate...

• Length of cable. Depending on the configurations that you have, you might need different-sized cables.If you do not specify the length of the StackWise cable, the 0.5-meter cable is supplied. If you need the1-meter cable or the 3-meter cable, you can order it from your Cisco supplier. For cable pa...

Data Stack Bandwidth and Partitioning Examples This section provides examples of data stack bandwidth and possible data stack partitioning. The figure showsa data stack of Catalyst 3850 switches that provides full bandwidth and redundant StackWise cable connections. Figure 14: Example of a Data Stac...

In this figure, link 2 is bad. Therefore, this stack partitions into two stacks, and the top and bottom switchesbecome the active switch in the stack. If the bottom switch is a member (not active or standby switch), itreloads. Figure 17: Example of a Partitioned Data Stack with a Failover Condition ...

• In a split stack, depending on where the active and standby switches are located, either two stacks mightbe formed (with the standby taking over as the new active switch in the newly formed stack) or all themembers in the newly formed stack might reload. These results depend on how the switches ar...

StackPower Cabling Configurations This section describes the recommended cabling configurations for a StackPower stack. There are two typesof StackPower cables. The cable in the figure connects a Catalyst 3850 switch to another Catalyst 3850 switch in a power stack orwith an XPS. StackPower cables h...

This figure shows a ring configuration using both of the supplied 0.3-meter StackPower cables and one1.5-meter cable. In the examples that follow, the switches are stacked in a vertical rack or on a table. Figure 19: StackPower Ring Topology StackPower Partitioning Examples These figures show StackP...

In this figure, StackPower port B on the center switch has failed and this stack partitions into two stacks. Thetop two switches share power, and the bottom switch is now a separate stack. Figure 21: Example of a Partitioned StackPower Stack with a Failover Condition Installing the Switch Rack-Mount...

Attaching the Rack-Mount Brackets Procedure Use four Phillips flat-head screws to attach the long side of the bracket to each side of the switch for the front-or rear-mounting positions. Figure 23: Attaching Brackets for 19-inch Racks Front-mounting position 3 Rear-mounting position 1 Number-8 Phill...

Mounting the Switch a Rack Procedure Step 1 Use the four supplied Phillips machine screws to attach the brackets to the rack. Step 2 Use the black Phillips machine screw to attach the cable guide to the left or right bracket. Front-mounting position 4 Phillips machine screw, black 1 Number-12 or num...

• Use the CLI setup program to enter the initial switch configuration. • Connect to the stack ports. • Connect to the front-panel ports. Connecting to the StackWise Ports Before You Begin Before connecting the StackWise cables, review the Planning a Switch Data Stack, on page 28 . Always use a Cisco...

When you need to remove the StackWise cable from the connector, make sure to fully unscrew the correctscrews. When the connectors are not being used, replace the dust covers. Connecting to the StackPower Ports Before You Begin Before connecting the StackPower cables, review Planning a Switch Data St...

Installing and Removing SFP and SFP+ Modules See these sections for information on SFPs and SFP+: • Installing SFP and SFP+ Modules, on page 54 • Removing SFP and SFP+ Modules, on page 55 Connecting Devices to the Ethernet Ports • 10/100/1000 Port Connections, on page 42 • PoE+ and Cisco UPOE Port C...

Table 19: Recommended Ethernet Cables (When Auto-MDIX is Disabled) Straight-Through Cable Crossover Cable 13 Device No Yes Switch to switch No Yes Switch to hub Yes No Switch to computer or server Yes No Switch to router Yes No Switch to IP phone 13 100BASE-TX and 1000BASE-T traffic requires twisted...

Voice over IP (VoIP) service and the emergency calling service do not function if power fails or is disrupted.After power is restored, you might have to reset or reconfigure equipment to regain access to VoIP andthe emergency calling service. In the USA, this emergency number is 911. You need to be ...

C H A P T E R 3 Installing a Network Module • Network Module Overview, page 45 • Installing a Network Module in the Switch, page 49 • Network Module Port Configurations, page 51 • Removing a Network Module, page 53 • SFP and SFP+ Modules, page 54 • Finding the Network Module Serial Number, page 56 N...

Installing a Network Module in the Switch Safety Warnings This section includes the installation cautions and warnings. Translations of the safety warnings appear in the Regulatory Compliance and Safety Information for the Catalyst 3850 Switches on Cisco.com: http:// www.cisco.com/go/cat3850_hw Read...

Installing Network Modules The switch can operate without a network module, but a blank module (with no ports or SFP slots) isavailable and should be installed when uplink ports are not required. Note The switch generates logs when you insert or remove a network module with SFP slots. Note Use only ...

Step 4 Position the module face up to install it in the module slot. Slide the module into the slot until the back of themodule faceplate is flush with the switch faceplate. Fasten the captive screws to secure the network modulein place. Figure 31: Installing the Network Module in the Switch Network...

Action Interface Disregard GigabitEthernet1/1/4 Disregard TenGigabitEthernet1/1/1 Disregard TenGigabitEthernet1/1/2 Configure this interface, even when operating as 1-G TenGigabitEthernet1/1/3 Configure this interface, even when operating as 1-G TenGigabitEthernet1/1/4 Removing a Network Module The ...

SFP and SFP+ Modules Installing SFP and SFP+ Modules Before You Begin You must have an installed network module to use SFP and SFP+ modules (except for the Catalyst 3850-12Sand 3850-24S). The downlink ports on the Catalyst 3850-12S and 3850-24S support standard SFP modules. See the switch release no...

On some SFP modules, the send and receive (TX and RX) markings might be shown by arrows that show thedirection of the connection. Step 3 If the SFP module has a bale-clasp latch, move it to the open, unlocked position. Step 4 Align the module in front of the slot opening, and push until you feel the...

Finding the Network Module Serial Number If you contact Cisco Technical Assistance regarding a network module, you need to know its serial number. Figure 34: Network Module Serial Number Location Catalyst 3850 Switch Hardware Installation Guide 56 OL-26779-04 Installing a Network Module Finding the ...

C H A P T E R 4 Power Supply Installation • Power Supply Module Overview, page 57 • Installation Guidelines, page 61 • Installing or Replacing an AC Power Supply, page 62 • Installing a DC Power Supply, page 63 • Finding the Power Supply Module Serial Number, page 69 Power Supply Module Overview The...

Do not reach into a vacant slot or chassis while you install or remove a module. Exposed circuitry couldconstitute an energy hazard. Statement 206 Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030 Warning If a Cisco external...

Step 5 Insert the new power supply into the power-supply slot, and gently push it into the slot. When correctlyinserted, the 350-W and 715-W power supplies (excluding the power cord retainer) are flush with the switchrear panel. The 1100-W power-supply module extends 1.5 inches from the switch rear ...

Installing the DC Power Supply in the Switch Before You Begin Before installing the power supply, see the Installation Guidelines, on page 61 . Procedure Step 1 Turn off DC power. To ensure that power is off, change the circuit breakers to the OFF position, and tape thecircuit-breaker switches in th...

Finding the Power Supply Module Serial Number If you contact Cisco Technical Assistance regarding a power supply module, you need to know the serialnumber. See the following illustrations to find the serial number. You can also use the CLI to find out theserial number. Figure 48: 1100-W AC Power Sup...

C H A P T E R 5 Installing the Fan • Fan Module Overview , page 71 • Installation Guidelines, page 72 • Installing a Fan Module, page 73 • Finding the Fan Module Serial Number, page 74 Fan Module Overview The switch has three fan modules. Fan modules are hot-swappable. A powered switch should always...

Installing a Fan Module Procedure Step 1 Pinch the fan module release handle, and slide the module out. You should replace the fan module within 5 minutes to avoid overheating the switch. Caution Step 2 Install the fan module in the fan slot, and firmly push it into the slot, applying pressure to th...

Finding the Fan Module Serial Number If you contact Cisco Technical Assistance regarding a fan module, you need to know the fan module serialnumber. See the following illustration to find the serial number. Figure 53: Fan Module Serial Number Catalyst 3850 Switch Hardware Installation Guide 74 OL-26...

C H A P T E R 6 Troubleshooting • Diagnosing Problems, page 75 • Replacing a Failed Data Stack Member, page 79 Diagnosing Problems The LEDs on the front panel provide troubleshooting information about the switch. They show POST failures,port-connectivity problems, and overall switch performance. You...

10/100/1000 PoE+ Port Connections A powered device connected to a PoE port does not receive power: • Use the Mode button to show the PoE status for all ports. • Use the show interfaces privileged EXEC command to see if the port is in error-disabled, disabled, or shutdown. Reenable the port if necess...

Ping End Device Ping from the directly connected switch first, and then work your way back port by port, interface by interface,trunk by trunk, until you find the source of the connectivity issue. Make sure that each switch can identifythe end device MAC address in its Content-Addressable Memory (CA...

Cabling Distance If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distancefrom the switch to the connected device meets the recommended guidelines. Clearing the Switch IP Address and Configuration If you have configured a new switch with a wrong I...

A P P E N D I X A Technical Specifications • Environmental and Physical Specifications, page 81 • Specifications for the Power Supplies, Switches, and Fan, page 83 Environmental and Physical Specifications This table describes the environmental specifications. Table 25: Environmental Specifications ...

2.6 lb (1.2 kg) PWR-C1-440WDC= Dimensions (H x D x W) The dimensions shown exclude the extraction handle, which measures 1.55 in. (3.9 cm) and the keyingfeature which measures 0.44 in (1.1 cm). 1.58 x 11.72 x 3.25 in. (3.5 x 29.8 x 8.3 cm) PWR-C1-1100WAC 1.58 x 10.22 x 3.25 in. (3.5 x 26 x 8.3 cm) P...

A P P E N D I X B Connector and Cable Specifications • Connector Specifications, page 87 • Console Port, page 89 • Cables and Adapters, page 89 Connector Specifications 10/100/1000 Ports (Including PoE) All 10/100/1000 ports use standard RJ-45 connectors and Ethernet pinouts. Figure 54: 10/100/1000 ...

SFP Module Connectors Figure 55: Duplex LC Cable Connector Figure 56: Simplex LC Cable Connector Figure 57: Copper SFP Module RJ-45 Connector Figure 58: SFP Module Patch Cable Catalyst 3850 Switch Hardware Installation Guide 88 OL-26779-04 Connector and Cable Specifications SFP Module Connectors

Console Port The switch has two console ports: a USB 5-pin mini-Type B port on the front panel and an RJ-45 consoleport on the rear panel. Figure 59: USB Mini-Type B Port The USB console port uses a USB Type A to 5-pin mini-Type B cable. The USB Type A-to-USB mini-TypeB cable is not supplied. You ca...

SFP Module Cables For cabling specifications, refer to the Cisco SFP and SFP+ Transceiver Module Installation Notes . Each port must match the wave-length specifications on the other end of the cable, and the cable must notexceed the stipulated cable length. Copper 1000BASE-T SFP module transceivers...

Cable Pinouts Figure 61: Four Twisted-Pair Straight-Through Cable Schematic Figure 62: Four Twisted-Pair Crossover Cable Schematic Figure 63: Two Twisted-Pair Straight-Through Cable Schematic Figure 64: Two Twisted-Pair Crossover Cable Schematic Catalyst 3850 Switch Hardware Installation Guide OL-26...

Figure 65: Identifying a Crossover Cable Console Port Adapter Pinouts The RS-232 console port uses an 8-pin RJ-45 connector. Use an RJ-45-to-DB-9 adapter cable to connect theswitch console port to a console PC. You need to provide a RJ-45-to-DB-25 female DTE adapter to connectthe switch console port...

A P P E N D I X C Configuring the Switch with the CLI-Based SetupProgram • Accessing the CLI Through Express Setup, page 95 • Accessing the CLI Through the Console Port, page 95 • Entering the Initial Configuration Information, page 101 Accessing the CLI Through Express Setup You can access the CLI ...

If you have stacked your switches, connect to the console port of one of the switches in the stack. Youcan initially configure the entire stack from any member switch. Note Connecting the RJ-45 Console Port Procedure Step 1 Connect the RJ-45-to-DB-9 adapter cable to the 9-pin serial port on the PC. ...

Connecting the USB Console Port Procedure Step 1 If you are connecting the switch USB console port to a Windows-based PC for the first time, install the USBdriver. See Installing the Cisco Microsoft Windows USB Device Driver, on page 98 . Figure 66: Connecting the USB Console Cable to the Switch Ste...

Step 5 Power on the switch as described in the switch getting started guide. Step 6 The PC or terminal displays the bootloader sequence. Press Enter to display the setup prompt. Follow the steps in the Setup program. Installing the Cisco Microsoft Windows USB Device Driver A USB device driver must b...

Step 2 Double-click the setup.exe file. Step 3 The Cisco Virtual Com InstallShield Wizard begins. Click Next. Step 4 The Ready to Install the Program window appears. Click Install. Step 5 The InstallShield Wizard Completed window appears. Click Finish. Step 6 Connect the USB cable to the PC and the ...

Entering the Initial Configuration Information To set up the switch, you need to complete the setup program, which runs automatically after the switch ispowered on. You must assign an IP address and other configuration information necessary for the switch tocommunicate with the local routers and the...