Home | Skip to Content | Skip to Search | Skip to Navigation | Skip to Footer |

Hierarchical Navigation

Cisco uBR10012 Universal Broadband Router

Configuring the Half-Height Gigabit Ethernet Line Card for the Cisco uBR10012 Universal Broadband Router
Downloads
Configuring the Half-Height Gigabit Ethernet Line Card for the Cisco uBR10012 Universal Broadband Router

Table Of Contents

Configuring the Half-Height Gigabit Ethernet Line Card for the Cisco uBR10012 Universal Broadband Router

Contents

Prerequisites

Restrictions

Information About the Half-Height Gigabit Ethernet Line Card

Benefits

Feature Overview

Faceplate and LEDs

LEDs

SFP Gigabit Ethernet Interface Converter Modules and Cable Specifications

Gigabit Ethernet Line Card Default Values

Half-Height Gigabit Ethernet Line Card Syntax

How to Configure the Half-Height Gigabit Ethernet Line Card

Configuring the Interface

Enabling Auto-Negotiation

Assigning a MAC Address

Setting and Changing Loopback Mode

Enabling IEEE 802.1Q Encapsulation

Setting the Maximum Transmission Unit (MTU)

Configuration Examples for Half-Height Gigabit Ethernet Line Card

show interfaces

show controller

show running config

Upgrading to a Half Height Gigabit Ethernet Line Card

Additional References

Related Documents

Standards

MIBs

RFCs

Technical Assistance

Command Reference

Glossary


Configuring the Half-Height Gigabit Ethernet Line Card for the Cisco uBR10012 Universal Broadband Router

This document describes procedures and Cisco IOS commands for configuring and monitoring the Cisco half-height gigabit Ethernet (HHGE) line card in the Cisco uBR10012 router.

History for the Half-Height Gigabit Ethernet Line Card Feature Cisco uBR10012 Universal Broadband Router

Release
Modification

12.3(13)BC

This feature was introduced.


Finding Support Information for Platforms and Cisco IOS Software Images

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. Access Cisco Feature Navigator at http://www.cisco.com/go/fn. You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear.

Contents

• Prerequisites

• Restrictions

• Information About the Half-Height Gigabit Ethernet Line Card

• How to Configure the Half-Height Gigabit Ethernet Line Card

• Configuration Examples for Half-Height Gigabit Ethernet Line Card

• Where to Go Next, page 14

• Additional References

• Command Reference

• Glossary

Prerequisites

To use the HHGE line card you must ensure the following:

•Cisco IOS Software release 12.3(13)BC or later release is installed on your system.

•A Cisco Performance Routing Engine 2 (PRE2) module is installed in the router.

Restrictions

The following restrictions apply to the HHGE line card:

•It must be used with a PRE2 module.

•It must be placed only in slot 3 and slot 4 in the Cisco uBR10012 universal broadband router. Using slots 1 and slot 2 causes a conflict with the Timing, Communication, and Control Plus (TCC+) modules.

Information About the Half-Height Gigabit Ethernet Line Card

This section describes the Cisco Half-Height Gigabit Ethernet line card.

Benefits

The HHGE provides the following benefits to cable MSOs, service providers, and their partners and customers.

•Provides 1-port full duplex 1 Gbps data rate

•Supports etherchannel network

•Supports OIR for 1000BASE-SXs or 1000BASE-LX GBICs, as described in the IEEE 802.3zspecifications

•Provides redundant trunks in one chassis slot

•Increases throughput density and load balancing which enhances high availability

•Supports trunk redundancy in a single slot, which frees up a slot for additional subscriber cards.

Feature Overview

The HHGE line card ( Figure 1) contains a single gigabit Ethernet port that provides a trunk uplink to switches and core routers. The HHGE line card provides the Cisco uBR10012 universal broadband router with an IEEE 802.3z compliant Ethernet interface that can run up to 1 Gbps in full duplex mode. The line card uses a Small Form-factor Pluggable (SFP) gigabit interface converter (GBIC) module and supports a variety of gigabit Ethernet interface types (SX  LX/LH, ZX), which you can change or upgrade at any time.

Faceplate and LEDs

Figure 1 Half-Height Gigabit Ethernet Line Card Faceplate

1

Ejector Levers

4

SFP Gigabit Ethernet Interface Converter

2

FAIL LED (yellow)

5

Link Status (green)

3

Receive Packet (green)

6

Transmit Packet (green)


LEDs

This HHGE line card faceplate contains the following LEDs that continuously indicate line card status as well as the status of the port during operation (see Figure 1).

•FAIL (yellow)—This LED lights during portions of the POST (Power-On Self Test), but remains off after the POST on a properly working line card. If the line card fails during operation, this LED lights and an alarm event occurs.

The FAIL LED blinks during the following SFP faults:

–An SFP GBIC other than a Cisco brand is inserted

–A non-gigabit Ethernet SFP GBIC is inserted

–A hardware problem occurs in a valid SFP GBIC

•Link (green)—When on, this LED indicates that a carrier signal exists. If negotiation is enabled (at both ends), it indicates successful completion and the port can pass traffic.

Note This LED can also be on if the line card is in internal loopback.

When off, this LED indicates that no carrier signal is detected, negotiation failed, or the port is administratively down.

–RX (green)—When on, this status LED indicates that packets are being received. When this LED is off, the line card is not receiving packets.

–TX (green)—When on, this status LED indicates that packets are being transmitted. When this LED is off, the line card is not transmitting packets.

Note Because this line card operates in full-duplex mode, both the RX and TX LEDs can be on at the same time.

SFP Gigabit Ethernet Interface Converter Modules and Cable Specifications

The HHGE line card supports single Ethernet interfaces based on SFP GBIC technology. The following SFPs are supported by this line card:

•1000BASE-SX SFP—The SFP-GE-S, 1000BASE-SX SFP operates on ordinary multimode fiber optic link spans of up to 550 meters in length.

•1000BASE-LX/LH SFP—The SFP-GE-L, 1000BASE-LX/LH SFP operates on ordinary single-mode fiber optic link spans of up to 10,000 meters in length.

•1000BASE-ZX SFP—The GLC-ZX-SM, 1000BASE-ZX SFP operates on ordinary single-mode fiber optic link spans of up to 70 kilometers (km) in length. Link spans of up to 100 km are possible using premium single-mode fiber or dispersion-shifted single-mode fiber. The SFP provides an optical link budget of 23 dB—the precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors.

When shorter distances of single-mode fiber are used, it may be necessary to insert an inline optical attenuator in the link, to avoid overloading the receiver. A 5-decibel (dB) or 10-dB inline optical attenuator should be inserted between the fiber optic cable plant and the receiving port on the GLC-ZX-SM at each end of the link whenever the fiber optic cable span is less than 25 km.

Note The required line card SFP GBIC is shipped already installed in the line card. Cisco sells individual SFP GBICs separately and you can change the type of gigabit Ethernet interface supported by this line card by simply changing its SFP GBIC module.

Table 1 lists the interface types supported by gigabit Ethernet line card.

Table 1 GBIC Port Cabling Specifications

SFP GBIC
Wavelength
(nm)
Fiber Type
Core Size
(microns)
Modal Bandwidth
(MHz*km)
Cable Distance

1000BASE-SX
SFP-GE-S

850

MMF

62.5
62.5
50.0
50.0

160
200
400
500

722 ft (220 m)
902 ft (275 m)
1640 ft (500 m)
1804 ft (550 m)

1000BASE-LX/LH
SFP-GE-L

1300

MMF1


SMF

62.5
50.0
50.0
8 to 10

500
400
500
—

1804 ft (550 m)
1804 ft (550 m)
1804 ft (550 m)
32,808 ft (10 km)

1000BASE-ZX
GLC-ZX-SM

1550

SMF

9, 10

—

43.4 to 62 miles
(70 to 100 km)2

1 Mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, 1000BASE-LX/LH SFPs, and a short link distance (10s of meters) can cause transceiver saturation resulting in an elevated bit error rate (BER). In addition, when using the LX/LH SFP with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord between the SFP and the MMF cable on both the transmit and receive ends of the link. The mode-conditioning patch cord is required for link distances greater than 984 ft (300 m).

2 1000BASE-ZX SFP can reach up to 100 km by using dispersion-shifted SMF or low attenuation SMF; the distance depends on fiber quality, number of splices, and connectors.


For more information about the SFPs, see the following URL: http://www.cisco.com/en/US/products/
hw/modules/ps5000/products_data_sheet09186a008014cb62.html

Gigabit Ethernet Line Card Default Values

Table 3-1 lists default values for the gigabitEthernet line cards. Table 2 includes the command used for modifying a default value and indicates if a value needs to be the same (or opposite) on the remote end of the connection.

Table 2 GigabitEthernet Line Card Defaults

Command Name
Default Setting
Command Syntax
Remote Side Setting

auto-negotiation

Enabled

[no] negotiation auto

Same

mtu (maximum transmission unit)

1500 (half-height)

mtu size

Same


Half-Height Gigabit Ethernet Line Card Syntax

To specify an interface number in a configuration command, use the syntax in Table 3 to identify interfaces on the HHGE line cards.

Table 3 HHGE Interface Syntax

Card
Slot
Subslot
Port

HHGE

3 and 4

0 and 1

0


The following example shows the syntax for configuring a HHGE line card in slot 3: 

Router(config)# interface GigabitEthernet 3/0/0 

Router(config-if)#

How to Configure the Half-Height Gigabit Ethernet Line Card

The following sections describe configuration commands used for configuring the HHGE line card.

• Configuring the Interface

• Enabling Auto-Negotiation

• Assigning a MAC Address

• Setting and Changing Loopback Mode

Configuring the Interface

Use the following procedure to create a basic configuration (enabling an interface and specifying IP routing) for a gigabitEthernet interface. Be prepared with the information you need, such as the interface IP address.

Prerequisites

Cisco IOS release 12.3(13)BC or later IOS releases

Restrictions

The HHGE must be in slots 3/0/0, 3/1/0, 4/0/0, or 4/1/0.

SUMMARY STEPS

1. enable

2. configure terminal

3. interface gigabitethernet [slot/subslot/port]

4. ip address [xxx.xxx.xxx.xx]

5. end

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode.

•Enter your password if prompted.

Step 2 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3 

interface gigabitethernet [slot/subslot/port]

Example:

Router#(config t) interface gigabitethernet 3/0/0

Selects the interface slot, subslot, and port.

Step 4 

ip address [xxx.xxx.xxx.xx xxx.xxx.xxx.x]

Example:

Router(config-if)# ip address 192.168.172.12 255.255.255.0

Assigns an IP address and subnet mask to the interface

Step 5 

end

Example:

router(config-if)# end

Exits the configuration mode.

Examples

The following example defines the initial steps for configuring the HHGE interface: 

router# configure terminal

router(config)# interface gigabitethernet 3/0/0

Router(config-if)# ip address 192.168.172.12 255.255.255.0 

router(config-if)# end

router#

Enabling Auto-Negotiation

To set auto negotiation mode for a gigabit ethernet interface use the negotiation auto command.

To remove auto negotiation, use the no form of the command.

Selecting the no negotiation auto causes the interface to enter a state called force-link-up.

Prerequisites

None

Restrictions

None

SUMMARY STEPS

1. enable

2. configure terminal

3. interface gigabitethernet 3/0/0

4. negotiation auto

5. end

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode.

•Enter your password if prompted.

Step 2 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3 

interface gigabitethernet 3/0/0

Example:

router(config)# interface gigabitethernet 3/0/0

Selects which slot and subslot to configure

Step 4 

negotiation auto

Example:

router(config-if)# negotiation auto

Selects auto negotiate

If necessary, modify the HHGE line card configuration or that of the remote device to ensure that, where appropriate, they use the same settings. For more information, refer to the Remote Side Setting column in Table 2.

Step 5 

end

Example:

router(config-if)# end

exits configuration mode

Examples

The following example defines auto negotiation mode for a gigabit Ethernet interface: 

router# configure terminal

router(config)# interface gigabitethernet 3/0/0

router(config-if)# negotiation auto

router(config-if)# end

router#

Assigning a MAC Address

Use the mac-address command to preserve a MAC address when you move a card to a new slot or chassis. You may want to preserve the MAC address if you have an access list that refers to it. If you use this command, you should change the address on the original slot so that you do not have two slots with the same address.

Assign a user defined MAC address for a Gigabit Ethernet interface. To remove the user defined MAC address, use the no form of the command.

mac-address address

[no] mac-address address

address is a two-byte hexadecimal value

Prerequisites

None

Restrictions

None

SUMMARY STEPS

1. configure terminal

2. interface gigabitethernet 3/0/0

3. mac-address 6000.0001.0003

4. end

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 2 

interface gigabitethernet 3/0/0

Example:

router(config)# interface gigabitethernet 3/0/0

Defines the slot address where the MAC is applied

Step 3 

mac-address 6000.0001.0003

Example:

router(config-if)# mac-address 6000.0001.0003

Defines the MAC address

Step 4 

end

Example:

router(config-if)# end

Ends the process

Example

The following example defines a MAC address for a gigabit Ethernet interface: 

router# configure terminal

router(config)# interface gigabitethernet 3/0/0

router(config-if)# mac-address 6000.0001.0003

router(config-if)# end

router#

Setting and Changing Loopback Mode

Set a loopback mode for a gigabit ethernet interface. To remove loopback mode, use the no form of the command.

loopback [internal | external

[no] loopback [internal | external]

Where:

•external runs a loopback that requires a loopback connector.

•internal runs a loopback at the MAC controller.

Use the no form of the command to stop the loopback.

Prerequisites

None

Restrictions

None

SUMMARY STEPS

1. configure terminal

2. interface gigabitethernet 3/0/0

3. loopback [internal | external]

4. end

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 2 

interface gigabitethernet 3/0/0

Example:

router(config)# interface gigabitethernet 3/0/0

Enter interface mode to configure the interface.

Step 3 

loopback [internal | external]

Example:

router(config-if)# loopback internal

Selecting loopback internal runs a loopback at the MAC controller.

Selecting loopback external runs a loopback that requires a loopback connector.

Step 4 

end

Example:

router(config-if)# end

End procedure

Example

The following example defines an internal loopback mode for a gigabit Ethernet interface: 

router# configure terminal

router(config)# interface gigabitethernet 3/0/0

router(config-if)# loopback internal

router(config-if)# end

router#

Enabling IEEE 802.1Q Encapsulation

Enable IEEE 802.1Q encapsulation of traffic on a gigabit Ethernet subinterface. To remove IEEE 802.1Q encapsulation, use the no form of the command.

Prerequisites

None

Restrictions

None

SUMMARY STEPS

1. configure terminal

2. interface gigabitethernet 3/0/0

3. loopback internal

4. end

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 2 

interface gigabitethernet 3/0/0

Example:

router(config)# interface gigabitethernet 3/0/0

Enter interface mode to configure the interface.

Step 3 

loopback internal

Example:

router(config-if)# loopback internal

Select loopback internal for

Select loopback external for - -

Step 4 

end

Example:

router(config-if)# end

End procedure

Example

The following example encapsulates VLAN traffic using the IEEE 802.1Q protocol for VLAN 101 on a HHGE (sub)interface: 

router# configure terminal

router(config)# interface gigabitethernet 3/0/0.101

router(config-if)# encapsulation dot1q 101

router(config-if)# end

router#

Setting the Maximum Transmission Unit (MTU)

Adjust the maximum transmission unit (MTU) size on a gigabit ethernet interface. Use the no form of this command to restore the MTU value to its original default value of 1500.

bytes specifies the size in bytes. The range is 1500 to 4470.

mtu [bytes]

[no] mtu [bytes]

Prerequisites

None

Restrictions

None

SUMMARY STEPS

1. configure terminal

2. interface gigabitethernet 3/0/0

3. mtu 4470

4. end

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 2 

interface gigabitethernet 3/0/0

Example:

router(config)# interface gigabitethernet 3/0/0

Enter interface mode to configure the interface.

Step 3 

mtu 4470

Example:

router(config-if)# mtu 4470

Setting maximum MTU.

If necessary, modify the HHGE line card configuration or that of the remote device to ensure that, where appropriate, they use the same settings. For more information, refer to the Remote Side Setting column in Table 2.

Step 4 

end

Example:

router(config-if)# end

End procedure

Example

The following example encapsulates VLAN traffic using the IEEE 802.1Q protocol for VLAN 101 on a gigabit Ethernet (sub)interface: 

router# configure terminal

router(config)# interface gigabitethernet 3/0/0.101

router(config-if)# mtu 4470

router(config-if)# end

router#

Configuration Examples for Half-Height Gigabit Ethernet Line Card

The following examples include:

• show interfaces

• show controller

• show running config

show interfaces

The show interfaces GigabitEthernet command is used to indicate the type of GigabitEthernet card is installed, and the media type. 

Router#show interfaces gigabitEthernet 4/0/0

GigabitEthernet4/0/0 is up, line protocol is up 

  Hardware is Half-height Gigabit Ethernet MAC Controller, address is 0005.00e3.fd00

  Internet address is 40.1.1.1/16

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, 

          reliability 255/255, txload 1/255, rxload 2/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 1000Mb/s, link type is autonegotiation, media type is SX

  output flow-control is XOFF, input flow-control is XOFF

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:07, output 00:00:03, output hang never

  Last clearing of "show interface" counters 01:09:13

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  30 second input rate 9613000 bits/sec, 20029 packets/sec

  30 second output rate 452000 bits/sec, 884 packets/sec

     73181143 packets input, 95919224 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 69 multicast, 0 pause input

     0 input packets with dribble condition detected

     44824427 packets output, 2868784657 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 pause output

     0 output buffer failures, 0 output buffers swapped out

Router#

show controller

The show controller command shows the type of SFP installed in the GigabitEthernet card. 

Router#show controllers gigabitEthernet 4/0/0

Interface GigabitEthernet4/0/0(idb 0x70CAE948)

Hardware is Half-height Gigabit Ethernet MAC Controller, network connection mode is auto

  network link is up

  loopback type is none

  SFP type is 1000BASE-SX

  ip_routecache=0x11(dfs=0/mdfs=0), max_mtu=1524

  c10k_ge1h_ds=0x63E34E4C

  resets=3, reset_init=1, reset_restart=3

  link_state_reason=7

Router#

show running config

The show running config command shows which cards are installed in which slots, half-height cards are installed in slot 3 (0, 1) and slot 4 (0, 1) 

Router#show running-config 


....snip.....


card 1/1 2cable-tccplus

card 2/0 1gigethernet-1

card 2/1 2cable-tccplus

card 3/0 1gigethernet-hh-1

card 4/0 1gigethernet-hh-1

card 4/1 1gigethernet-hh-1

card 5/0 5cable-mc520u-d


....snip.....


Router#

Upgrading to a Half Height Gigabit Ethernet Line Card

This section provides instructions for upgrading from two full height gigabit Ethernet line cards to half- height gigabit Ethernet line cards.

Step 1 Verify traffic is passing through slot 3/0 and slot 4/0.

Step 2 Administratively shut down the line card in slot 3/0 and let traffic reroute through slot 4/0.

Step 3 Remove the full height line card in slot 3/0.

Step 4 Install the slot splitter into slot 3/0.

Step 5 Install the half height card in the slot splitter 3/0/0.

Step 6 Configure and bring up the HHGE card in slot 3/0/0.

Step 7 Repeat Step 2, Step 5, and Step 6 for the gigabit Ethernet card in slot 3/1/0

Step 8 Repeat Step 1 through Step 7 of this procedure for the GigE line card in slot 4/0 and slot 4/1.

Additional References

The following sections provide references related to the HHGE line card.

Related Documents

Related Topic
Document Title

Hardware Installation

Cisco uBR10012 Universal Broadband Router Hardware Installation Guide

http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ubr10012/hig/index.htm

Feature guide

Cisco CMTS Feature Guide

http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cmtsfg/index.htm

Command reference guide

Cisco Broadband Cable Command Reference Guide

http://www.cisco.com/univercd/cc/td/doc/product/cable/bbccmref/index.htm

MIBS

Cisco CMTS MIB Specifications Guide

http://www.cisco.com/univercd/cc/td/doc/product/cable/cmtsmib/index.htm


Standards

Standard
Title

DOCSIS 1.0

Data Over Cable Service Interface Specification 1.0

DOCSIS 1.1

Data Over Cable Service Interface Specification 1.1

DOCSIS 2.0

Data Over Cable Service Interface Specification 2.0

IEEE 802.1q

VLAN frame-tagging standard

IEEE 802.3x

Flow control standard

IEEE 802.3ab

1000BASE-T, or Gigabit CX standard (using UTP Cat-5 cabling) specification

IEEE 802.3z

Gigabit Ethernet specification


MIBs

MIB
MIBs Link

•Cisco IF-MIB

•Cisco Entity-MIB

•Cisco Ethernet Link-MIB

•Cisco GE-MIB

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs


RFCs

RFC
Title

RFC 1213

Management Information Base for Network Management of TCP/IP-based internets:MIB-II

RFC 1573

Evolution of the Interfaces Group of MIB-II

RFC 2863

The Interfaces Group MIB


Technical Assistance

Description
Link

The Cisco Technical Support website contains thousands of pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.

http://www.cisco.com/techsupport


Command Reference

This feature uses no new or modified commands.

Glossary

HHGE—Half-Height Gigabit Ethernet (line card)

Half-Height Gigabit Ethernet— name for the half-height gigabit Ethernet line card.

Note See Internetworking Terms and Acronyms for terms not included in this glossary.

© 2005 Cisco Systems, Inc. All rights reserved.