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CH A P T E R 1 Product Overview The Cisco 10720 Internet Router provides IP services to users at optical speeds at the edge of their networks. The Cisco 10720 Internet Router provides network access using Ethernet and Dynamic Packet Transport (DPT), Packet over SONET (POS), or IEEE 802.17 RPR technology for optical connectivity. Each router is equipped with one uplink card and one Ethernet access card. The Cisco 10720 Internet Router overview is presented in the following sections: • Product Description, page 1-1 • Physical and Functional Overview, page 1-2 • Design Specifications, page 1-9 Product Description The Cisco 10720 Internet Router provides Ethernet and OC-48c/STM-16c Internet access. Ethernet connections are provided by means of copper or optical cables. OC-48c/STM-16c connections are provided by means of optical cables. The router can interoperate with synchronous optical network (SONET) transport infrastructure, but it is not required. The Cisco 10720 Internet Router has one card cage with two card slots. The upper slot supports one uplink card and the lower slot supports one access card. Network interface connectors are located on the front of the uplink and access cards. The built-in Flash memory contains a total of 64 MB, with 16 MB dedicated to a read-only partition that contains the Cisco IOS software image that shipped with the router. There are 48 MB dedicated to a read-write partition. The read-write partition contains downloaded Cisco IOS software images and is used to boot up the router. Additional features of the Cisco 10720 Internet Router are as follows: • Configuration and administration features, including Telnet and (Cisco Discovery Protocol) CDP • Serial (AUX) and console ports for local and remote administration • Remote software download via Trivial File Transfer Protocol (TFTP) and Remote copy.A UNIX utility (RCP) • IP over DCC (data communications channel) for remote management of the Cisco 15104 OC-48/STM16 Optical Regenerator, where applicable • Optical receive power monitoring support on the OC-48 interface 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 1-1

Section	Page
Cisco 10720 Internet Router Installation and Configuration Guide	1
Contents	3
Preface	11
Document Revison History	11
Audience	11
Purpose	12
Organization	12
Conventions	13
Warning Definition	13
Related Documentation	19
DPT and SRP	19
Cisco IOS Software Releases	19
Modular QoS	19
Field-Replaceable Units (FRUs)	19
Other	20
Obtaining Documentation	20
Cisco.com	20
Product Documentation DVD	20
Ordering Documentation	20
Documentation Feedback	21
Cisco Product Security Overview	21
Reporting Security Problems in Cisco Products	21
Obtaining Technical Assistance	22
Cisco Technical Support & Documentation Website	22
Submitting a Service Request	23
Definitions of Service Request Severity	23
Obtaining Additional Publications and Information	24
1	27
Product Overview	27
Product Description	27
Physical and Functional Overview	28
Cisco 10720 Internet Router Hardware Features	29
Hardware Field Replaceable Units	30
Uplink Cards	30
Access Card	32
Redundant Power Supply	32
Fan Assembly	33
Mounts	33
Cable Management	34
Software Features	34
Design Specifications	35
Network Equipment Building Systems	35
Electromagnetic Compatibility	35
Bonding and Grounding	35
Environmental Monitoring	35
Shock and Vibration	35
2	37
Preparing for Installation	37
Regulatory Compliance and Safety Information	37
Warnings and Cautions	37
Safety Guidelines	38
Maintaining Safety with Electricity	39
Electrostatic Discharge	39
Preventing Electrostatic Discharge	39
Laser Safety	40
Class 1 Laser Product Warning	40
General Laser Warning	40
Class 1 LED Product Warning	40
Required Tools and Equipment	41
Rack-Mounting Guidelines	41
Ventilation Guidelines	41
Rack-Mounting Clearance Guidelines	42
Maintenance Guidelines for Multiple Routers in a Rack	42
Environmental Safety Guidelines	44
Airflow Guidelines	44
Temperature and Humidity Guidelines	44
Power Guidelines	45
AC-Powered Router	45
DC-Powered Router	45
Site Wiring Distance and Interference Guidelines	46
Electromagnetic Interference	46
Distance Limitations for Signaling and Unshielded Conductors	46
Cable Management	47
Mounting the Router	47
Cisco IOS Software Configuration	47
Verifying the Contents in the Box	47
Site Log Preparation	48
3	51
Installing the Cisco 10720 Internet Router	51
Setting up the Cisco 10720 Internet Router	51
Cable Management	52
Rack-Mounting the Router	52
Wall-Mounting the Router	56
Setting up the Router on a Desktop	58
Grounding the Cisco 10720 Internet Router	59
Supplemental Unit Bonding and Grounding Guidelines	59
SONET Distance Limitations	61
Fiber Cables and Connectors	61
Connecting Ports on the Uplink Cards	62
Installing the OC48 SFP Modules in the RPR/SRP Uplink Card	63
Creating a Four-Node DPT Ring	64
Creating a Four-Node IEEE 802.17 RPR Mode Ring	67
Additional Ports on the Uplink Cards	69
Attaching a Terminal Server or Access Server to the Console or AUX Port	69
Attaching a Modem to the Console or AUX Port	70
Connecting a Desktop Computer, Laptop, or Terminal to the Console or AUX Port	71
Connecting Ethernet Ports on the Access Card	72
Installing a Bale Clasp SFP	72
Installing a Latch SFP	73
In-Band Ethernet Port	75
Installing the Cable-Management System	75
Turning On Power to the Router	76
Connecting the AC Power Supply	77
Connecting the DC Power Supply	79
Verifying the Router Power Is Turned On	82
Initial Setup Configuration	82
Configuring the Router	82
Configuring Global Parameters Using the Setup Facility	83
Host Name	83
Assigning Passwords	83
Verifying the Cisco 10720 Internet Router LEDs	83
Uplink Card System LEDs	84
Uplink Card Status LEDs	86
Access Card System LEDs	88
Access Card Status LEDs	89
Additional Configuration Features	92
Saving the Configuration to NVRAM	92
Using the show Commands	92
Using the show running configuration Command	92
Using the show version Command	94
Using the show environment all Command	95
Monitoring Optical Power	95
Configuring Basic SRP Functionality	96
Configuring POS Functionality	96
Configuring Fast Ethernet	97
Configuring Gigabit Ethernet	97
Configuring TDR on TX Access Card	97
Assigning IP Information	97
Enabling Write Permission to Bootflash	97
Upgrading the Cisco IOS Software Image	97
Verifying the Image Is Upgraded	98
Upgrading ROM Monitor	98
Verifying ROM Monitor Is Upgraded	99
4	101
Troubleshooting	101
Basic Troubleshooting RPR-IEEE for the Uplink Card	101
Using the show controller rpr-ieee Command	101
Using the show controllers rpr-ieee 1/1 transceiver Command	103
Using the show arp Command	104
Verifying Clocking	105
PASS-THRU Mode	105
Verifying the PASS-THRU Mode	105
Using the show rpr-ieee topology Command	106
Using the show rpr-ieee protection Command	106
Fiber Misconnection	107
Basic Troubleshooting SRP for the Uplink Card	107
Using the show controller srp Command	107
Using the show arp Command	109
Verifying Clocking	109
PASS-THRU Mode	109
Verify the PASS-THRU Mode	110
Using the show srp topology Command	110
Using the show srp ips Command	110
Fiber Misconnection	111
Alarm Messages	111
Alarm Messages	111
Basic Troubleshooting Ethernet for the Access Card	119
Verifying Interface Configuration	119
FastEthernet/GigabitEthernet Is up	120
Line Protocol Is up	120
Duplex Mode Setting	121
Speed Mode	121
Output Hang	121
CRC Field Counters	121
Late Collision	121
Carrier Signal	122
Cleaning the Fiber-Optic Connections	122
5	123
Maintaining the Cisco 10720 Internet Router	123
Overview	123
Safety Recommendations	123
Required Tools and Equipment	124
Tools	124
Field-Replaceable Units	124
Disconnecting Power from the Router	125
Overview	125
Disconnect Device Safety Warning	125
Tools and Equipment Required	126
Powering Down the Router	126
Verifying the Router Is Powered Down	128
Connecting Power to the Router	129
Safety	129
Tools and Equipment Required	129
Connecting the AC Power Supply	129
Connecting the DC Power Supply	132
Removing and Installing the Router Chassis Cover	135
Safety	135
Required Tools and Equipment	135
Removing the Router Cover	135
Installing the Router Cover	137
Removing and Installing the Router Fan Assembly	138
Safety	138
Required Tools and Equipment	139
Removing the Fan Assembly	139
Installing the Fan Assembly	143
Verifying Fan Assembly Functionality	148
Troubleshooting the Fan Assembly	148
Removing and Installing the Route Processor Memory	148
Upgrading and Verifying the Cisco IOS Release	149
Upgrading and Verifying the ROMmon Image	149
Upgrading the Golden ROMmon Image with FPGA Version 3	149
Upgrading the Golden ROMmon Image with FPGA Version 4	150
Upgrading the ROMmon Image	150
Verifying the ROMmon Image	151
Removing the 256-MB Route Processor Memory	151
Installing the 512-MB Route Processor Memory	154
Checking the 512-MB Route Processor Installation	155
Removing and Installing the AC or Dual DC Power Supply	156
Safety	156
Required Tools and Equipment	157
Removing an AC or Dual DC Power Supply	157
Installing an AC or Dual DC Power Supply	164
Verifying AC or Dual DC Power Supply Functionality	168
Removing and Installing an Uplink Card	171
Safety	171
Required Tools and Equipment	171
Removing an Uplink Card	172
Removing an SFP	172
Installing an Uplink Card	177
Installing the OC48 SFP Modules in the RPR/SRP Uplink Card	178
Connecting the Optical Cables	179
Verifying Uplink Card Functionality	179
Troubleshooting the Uplink Card Functionality	179
Removing and Installing an Access Card	180
Safety	180
Required Tools and Equipment	180
Removing an SFP	180
Removing a Bale Clasp SFP	181
Removing a Latch SFP	183
Removing the Access Card	184
Installing an Access Card	186
Installing the SFP Modules on the Access Card	187
Verifying Access Card Functionality	189
Troubleshooting the Access Card Functionality	189
Removing and Installing the Cable-Management System	190
Safety	190
Required Tools and Equipment	190
Removing the Cable-Management System	190
Installing the Cable-Management System	192
Technical Specifications	195
Physical and Environmental Specifications	195
Power Specifications	196

Match case Limit results 1 per page

CHAPTER

1-1

Cisco 10720 Internet Router Installation and Configuration Guide

78-13062-10

Product Overview

The Cisco 10720 Internet Router provides IP services to users at optical speeds at the edge of their

networks. The Cisco 10720 Internet Router provides network access using Ethernet and Dynamic Packet

Transport (DPT), Packet over SONET (POS), or IEEE 802.17 RPR technology for optical connectivity.

Each router is equipped with one uplink card and one Ethernet access card.

The Cisco 10720 Internet Router overview is presented in the following sections:

•

Product Description, page 1-1

•

Physical and Functional Overview, page 1-2

•

Design Specifications, page 1-9

Product Description

The Cisco 10720 Internet Router provides Ethernet and OC-48c/STM-16c Internet access. Ethernet

connections are provided by means of copper or optical cables. OC-48c/STM-16c connections are

provided by means of optical cables. The router can interoperate with synchronous optical network

(SONET) transport infrastructure, but it is not required.

The Cisco 10720 Internet Router has one card cage with two card slots. The upper slot supports one

uplink card and the lower slot supports one access card. Network interface connectors are located on the

front of the uplink and access cards.

The built-in Flash memory contains a total of 64 MB, with 16 MB dedicated to a read-only partition that

contains the Cisco IOS software image that shipped with the router. There are 48 MB dedicated to a

read-write partition. The read-write partition contains downloaded Cisco IOS software images and is

used to boot up the router.

Additional features of the Cisco 10720 Internet Router are as follows:

•

Configuration and administration features, including Telnet and (Cisco Discovery Protocol) CDP

•

Serial (AUX) and console ports for local and remote administration

•

Remote software download via Trivial File Transfer Protocol (TFTP) and Remote copy.A UNIX utility

(RCP)

•

IP over DCC (data communications channel) for remote management of the Cisco 15104

OC-48/STM16 Optical Regenerator, where applicable

•

Optical receive power monitoring support on the OC-48 interface