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Troubleshooting Router Freeze After the ROM Monitor Initializes, Troubleshooting Router Freeze

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Troubleshooting Router Booting Issues Chapter 4 Troubleshooting Troubleshooting Router Freeze After the ROM Monitor Initializes When a user boots a router from the ROM, the system hangs after the ROM monitor initializes. Table 4-4 describes solutions for this problem. Table 4-4 Booting: Router Hangs After ROM Monitor Initializes EPROM1 size 1. Power down the system. setting is incorrect 2. Inspect EPROM size jumpers. See the hardware installation and maintenance publication for your router to determine the proper setting. 3. Move jumpers as required. Configuration register is not set correctly 1. Check your configuration settings (boot ROM jumpers and software configuration). If no jumper is set at bit 0, and no other boot field is defined, you must reconfigure your system so that it can boot properly. 2. To enable your router to boot properly, do one of the following: • Configure the software configuration register of the router using the config-register value global configuration command. • Set the boot ROM jumper to permit booting. • Include the correct boot system global configuration commands to boot the system. • Set bit 0 to a value of 1 to force booting from ROM. See the Cisco IOS configuration guides and command references, as well as your hardware installation and maintenance publications, for more information about configuring your router for the various booting options. 1. EPROM = erasable programmable read-only memory Troubleshooting Router Freeze in the ROM Monitor Mode When a user boots a router from ROM, the system boots into ROM monitor mode but does not boot the complete system image and the router remains in the ROM monitor mode. 4-12 Cisco 7600 Series Routers Module Guide OL-5077-7

Section	Page
Cisco 7600 Series Router Module Installation Guide	1
Preface	7
Document Revision History	7
Table 1 Document Revision History	7
Audience	7
Organization	7
Table 2 Document Organization	8
Conventions	8
Table 3 Command Descriptions	8
Warning Definition	10
Related Documentation	13
Obtaining Documentation	13
Cisco.com	13
Documentation CD-ROM	13
Ordering Documentation	14
Documentation Feedback	14
Obtaining Technical Assistance	14
Cisco.com	14
Technical Assistance Center	15
Cisco TAC Website	15
Cisco TAC Escalation Center	16
Obtaining Additional Publications and Information	16
1	17
Product Overview	17
Cisco 7600 Series Routers	17
Supported Hardware	17
Features	19
Table 1-1 Cisco 7600 Series Router Key Features (continued)	19
Supervisor Engines	20
Table 1-2 Supervisor Engines (continued)	21
Figure 1-1 Supervisor Engine 2 Front Panel Features	26
Figure 1-2 Supervisor Engine 720 Front Panel Features	26
Figure 1-3 Supervisor Engine 32 (WS-SUP32-GE-3B) Front Panel Features	26
Figure 1-4 Supervisor Engine 32 (WS-SUP32-10GE-3B) Front Panel Features	27
Figure 1-5 Route Switch Processor 720 (RSP720-3c-GE) Front Panel	27
Figure 1-6 RSP720-3C-10GE Front Panel	27
LEDs	27
Table 1-3 Supervisor Engine 2 LEDs	28
Table 1-4 Supervisor Engine 720 LEDs	29
Table 1-5 Supervisor Engine 32 LEDs (continued)	29
Table 1-6 Route Switch Processor 720 LEDs (continued)	30
Reset Button	31
Console Port	31
Console Port Mode Switch	31
Switch Load Meter	32
PCMCIA Slot	32
Uplink Ports	32
Optical Services Modules	33
OC-3c POS OSM	33
Table 1-7 OC-3c POS OSMs	33
Figure 1-7 4-Port OC-3 POS OSM	33
Figure 1-8 8-Port OC-3 POS OSM	33
OC-12c POS OSM	34
Table 1-8 OC-12c POS OSMs	34
Figure 1-9 2-Port OC-12c POS OSM	34
Figure 1-10 4-Port OC-12c POS OSM	34
OC-48 POS OSM	34
Table 1-9 OC-48 POS OSMs	34
Figure 1-11 1-Port OC-48 POS OSM	35
OC-48 DPT/POS OSM	35
Table 1-10 2-Port OC-48 DPT/POS OSMs	35
Figure 1-12 2-Port OC-48 DPT/POS OSM	35
Channelized OC-12 OSM	35
Table 1-11 1-Port Channelized OC-12 OSMs	35
Figure 1-13 1-Port Channelized OC-12 OSM	35
OC-12 ATM OSM	36
Table 1-12 2-Port OC-12 ATM OSMs	36
Figure 1-14 2-Port OC-12 ATM OSM	36
2+4-Port Gigabit Ethernet WAN OSM	36
Figure 1-15 2+4-Port Gigabit Ethernet WAN OSM	36
12-Port Channelized T3 OSM	36
Figure 1-16 12-Port Channelized T-3 OSM	37
OSM LED Descriptions	37
OSM STATUS LED	37
Figure 1-17 OSM STATUS and LINK LEDs-Gigabit Ethernet Ports	37
Table 1-13 OSM STATUS LED Description (continued)	37
Gigabit Ethernet Link LED Description	38
Table 1-14 Module LINK LED Descriptions	38
LC and SC Interface LED Description	38
Figure 1-18 LC OSM Interface LEDs	38
Figure 1-19 SC OSM Interface LEDs	39
Table 1-15 LC and SC Interface LED Descriptions	39
MT-RJ Interface LED Description	39
Figure 1-20 MT-RJ OSM Interface LEDs	39
Table 1-16 MT-RJ OSM Interface LED Descriptions	40
Catalyst 6500 Family Modules	40
FlexWAN Module (WS-X6182-2PA)	40
Figure 1-21 FlexWAN Module Front Panel (WS-X6182-2PA)	41
Enhanced FlexWAN Module (WS-X6582-2PA)	41
Figure 1-22 Enhanced FlexWAN Module Front Panel (WS-X6582-2PA)	42
48-Port 10/100TX Switching Module (WS-X6348-RJ-45)	42
Figure 1-23 48-Port 10/100TX Switching Module (WS-X6348-RJ-45)	42
16-Port Gigabit Ethernet Switching Module (WS-X6516-GBIC)	42
Figure 1-24 16-Port Gigabit Ethernet Switching Module (WS-X6516-GBIC)	42
Switch Fabric Module (WS-C6500-SFM)	43
Figure 1-25 Switch Fabric Module (WS-C6500-SFM)	43
Switch Fabric Module 2 (WS-X6500-SFM2)	43
Figure 1-26 Switch Fabric Module 2 (WS-X6500-SFM2)	44
Cisco Application Control Engine (ACE) Module (ACE10-6500-K9)	44
Figure 1-27 Cisco Application Control Engine (ACE) Module	44
Catalyst 6000 Family Module LED Descriptions	45
Table 1-17 Catalyst 6000 Family Module LEDs	45
SPA Interface Processors	45
Table 1-18 SIP Summary	46
7600-SIP-200	46
Figure 1-28 7600-SIP-200	46
7600-SIP-400	46
Figure 1-29 7600-SIP-400	47
7600-SIP-600	47
Figure 1-30 7600-SIP-600	47
SIP LED Descriptions	47
Table 1-19 SIP LED Descriptions	47
Ethernet Services 20G Line Cards	47
Table 1-20 Cisco 7600 ES20 Line Card Summary	48
7600-ES20-10G	48
Figure 1-31 Cisco 7600-ES20-10G Faceplate	48
Table 1-21 Cisco 7600-ES20-10G LEDs	48
7600-ES20-GE	49
Figure 1-32 Cisco 7600-ES20-GE Line Card Faceplate	49
Table 1-22 Cisco 7600-ES20-GE Line Card LEDs	49
Cisco 7600 Ethernet Services Plus Line Cards	49
Cisco 7600 ES+ 2TG3C, -3CXL Line Cards	50
Figure 1-33 Cisco 7600 ES+ 2TG3C	50
Figure 1-34 Cisco 7600 ES+ 2TG3CXL Faceplate	50
Table 1-23 Cisco 7600 ES+ 2TG3C, -3CXL LEDs	50
Cisco 7600 ES+ 4TG3C, -4TG3CXL Line Cards	50
Figure 1-35 Cisco 7600 ES+ 4TG3C Faceplate	51
Figure 1-36 Cisco 7600 ES+ 4TG3CXL Faceplate	51
Table 1-24 Cisco 7600 ES+ 4TG3C, -4TG3CXL LEDs	51
Cisco 7600 ES+ 20G3C, -20G3CXL Line Cards	51
Figure 1-37 Cisco 7600 ES+ 20G3C Line Card Faceplate	51
Figure 1-38 Cisco 7600 ES+ 20G3CXL Line Card Faceplate	52
Table 1-25 Cisco 7600 ES+ 20G3C, -20G3CXL Line Card LEDs	52
Cisco 7600 ES+ 40G3C, -40G3CXL Line Cards	52
Figure 1-39 Cisco 7600 ES+ 40G3C Line Card Faceplate	52
Figure 1-40 Cisco 7600 ES+ 40G3CXL Line Card Faceplate	52
Table 1-26 Cisco 7600 ES+ 40G3C, -40G3CXL Line Card LEDs	53
Port Addresses	53
Physical Interface Addresses	53
Figure 1-41 Cisco 7609 Router Port Address Examples	54
MAC Addresses	54
Hot Swapping Supervisor Engines and Modules	55
Power Management and Environmental Monitoring	55
OSM Technology Overview	55
SONET/SDH Overview	56
ATM Overview	56
2	59
Preparing for Installation	59
Safety Guidelines	59
General Precautions	59
Safety Warnings	60
Installation Hazard	60
Blank Faceplates and Cover Panels	62
Backplane Voltage	64
SELV Circuit	65
Wrist Strap Warning	67
Limiting Connection Distances	68
Determining Cable Distances	68
Ethernet and Fast Ethernet Transmission Distances	69
Table 2-1 Ethernet and Fast Ethernet Maximum Transmission Distances	69
OC-3, OC-12, and OC-48 POS Fiber Interface Specifications	69
Table 2-2 OC-3 Fiber Interface Specifications	69
Table 2-3 OC-12 Fiber Interface Specifications	70
Table 2-4 OC-48 Fiber Interface Specifications	70
ATM OC-12 Optical Specifications	70
Table 2-5 ATM OC-12 Optical Specifications for MMF and SMF Cables	70
Gigabit Ethernet Optical Specifications	71
Table 2-6 Gigabit Ethernet Maximum Transmission Distances	71
Patch Cord	71
Patch Cord Configuration Example	72
Figure 2-1 Patch Cord Configuration	72
Patch Cord Installation	72
Figure 2-2 Patch Cord Installation	72
Differential Mode Delay	72
Figure 2-3 LED Transmission Compared to Laser Transmission	73
Supervisor Engine Console Port Cabling Specifications	74
Table 2-7 EIA/TIA-232 Transmission Speed Versus Distance	74
Port Connector Requirements	74
Table 2-8 Port Connector Requirements	75
Figure 2-4 SC Fiber-Optic Connector	75
Figure 2-5 LC Fiber-Optic Connector	75
Figure 2-6 MT-RJ Interface Cable Connector	75
Figure 2-7 RJ-45 Interface Cable Connector	76
Figure 2-8 Mini-SMB Connector	76
Port Densities	76
Table 2-9 Cisco 7600 Series Router Bandwidth and Port Density (continued)	76
Software Requirements	77
3	79
Installing Modules	79
Required Tools	79
Preventing Electrostatic Discharge Damage	80
Installing a Supervisor Engine or a Module	80
Table 3-1 Supervisor Engine Slot Assignments	81
Figure 3-1 Slot Numbers on Cisco 7603 Router	82
Figure 3-2 Slot Numbers on Cisco 7604 Router	82
Figure 3-3 Supervisor Engine 720s and Route Switch Processor 720s are installed in slots 1 and 2. The illustration shows one supervisor engine.Slot Numbers on Cisco 7606 Router	83
Figure 3-4 Slot Numbers on Cisco 7609 Router and Cisco 7609-S Router	84
Figure 3-5 Slot Numbers on Cisco 7613 Router	85
Step 1 Choose a slot for the supervisor engine or module.	85
Step 2 Make sure that there is enough clearance to accommodate any interface equipment that you will connect directly to the supervisor engine or module ports. If possible, place modules between empty slots that contain only module filler plates.	86
Step 3 Verify that the captive installation screws are tightened on all modules installed in the chassis to ensure that the EMI gaskets on all modules are fully compressed in order to maximize the opening space for the new or replacement module.	86
Step 4 Remove the module filler plate by removing the two Phillips pan-head screws from the filler plate. To remove a module, follow the procedure in the “Removing the Supervisor Engine or a Module” section on page 3-13.	86
Step 5 Fully open both ejector levers on the new module. (See Figure 3-6.)	86
Figure 3-6 Ejector Levers and Captive Installation Screws	86
Step 6 Depending on the position of the slots in the chassis (horizontal or vertical), perform one of these two sets of substeps:	86
Horizontal slot	86
Figure 3-7 Positioning the Module in the Slot	88
Figure 3-8 Clearing the EMI Gasket	89
Figure 3-9 Ejector Lever Closure	89
Vertical slots	89
Figure 3-10 Installing a Module in the Cisco 7609 Router	91
Removing the Supervisor Engine or a Module	91
Step 1 Disconnect any network interface cables attached to the supervisor engine or module.	92
Step 2 Verify that the captive installation screws on all of the modules in the chassis are tight. This step assures that the space created by the removed module is maintained.	92
Step 3 Loosen the two captive screws on the supervisor engine or module.	92
Step 4 Depending on the position of the slots in the chassis (horizontal or vertical), perform one of these two sets of steps:	92
Horizontal slots	92
Vertical slots	92
Step 5 Place the module on an antistatic mat or antistatic foam, or immediately reinstall it in another slot.	92
Step 6 If the slot is to remain empty, install a module filler plate to keep dust out of the chassis and to maintain proper airflow through the chassis.	92
Connecting the Supervisor Engine	93
Connecting to the Console Port	93
Figure 3-11 Supervisor Engine Console Port Connector	93
Connecting a Terminal	93
Connecting a Modem	94
Connecting to the Uplink Ports	94
Step 1 Remove the plugs from the Gigabit Interface Converter (GBIC) optical bores; store them for future use.	94
Step 2 Remove the plugs from the SC connector (see Figure 3-12) on the fiber-optic cable.	94
Step 3 Insert the connector into the GBIC.	94
Figure 3-12 SC Connector to GBIC	95
Installing and Removing GBICs	95
GBIC Installation Guidelines	95
Installing a GBIC	96
Installing a GBIC with Clips	96
Step 1 Remove the GBIC from its protective packaging.	96
Step 2 Check the label on the GBIC to verify that the GBIC is the correct model (SX, LX/LH, or ZX) for your network.	96
Step 3 Grip the sides of the GBIC with your thumb and forefinger and insert the GBIC into the module socket, as shown in Figure 3-13.	96
Figure 3-13 Installing a GBIC with Clips	96
Step 4 Slide the GBIC through the flap covering the socket opening until you hear a click indicating the GBIC is locked into the slot.	96
Step 5 When you are ready to attach the network interface fiber-optic cable, remove the plug from the GBIC optical bore and save the plug for future use.	97
Installing a GBIC with a Handle	97
Step 1 Remove the GBIC from its protective packaging.	97
Step 2 Check the label on the GBIC to verify that the GBIC is the correct model (SX, LX/LH, or ZX) for your network.	97
Step 3 Remove the plug from the optical bore.	97
Step 4 Slide the GBIC into the module socket. (See Figure 3-14).	97
Figure 3-14 Installing a GBIC with a Handle	97
Step 5 Verify that the GBIC handle is in the down position.	97
Removing a GBIC	98
Removing a GBIC with Clips	98
Step 1 Disconnect the network fiber-optic cable from the GBIC SC connector.	98
Step 2 Release the GBIC from the slot by simultaneously squeezing the two plastic tabs (one on each side of the GBIC).	98
Step 3 Slide the GBIC out of the Gigabit Ethernet module slot. A flap drops down to protect the Gigabit Ethernet module connector.	98
Step 4 Place the GBIC in an antistatic bag.	98
Removing a GBIC with a Handle	98
Step 1 Disconnect the network fiber-optic cable from the GBIC SC connector.	98
Step 2 Rotate the handle up to release the GBIC from the slot.	98
Step 3 Grip the handle or the sides of the GBIC and slide the GBIC out of the slot. A flap drops down to protect the slot.	98
Step 4 Place the GBIC in an antistatic bag.	98
Using Flash PC Cards	98
Figure 3-15 Locating the Flash PC Card Write-Protection Switch	99
Step 1 Face the front panel of the switch and hold the Flash PC card with the connector end of the card toward the slot. The connector end of the card is opposite the end with the write-protection switch, which is shown in Figure 3-15.	99
Step 2 Insert the card into the slot until the card completely seats in the connector at the back of the slot and the eject butt...	99
Step 3 To eject a card, press the ejector button until the card is free of the connector at the back of the slot.	99
Step 4 Remove the card from the slot and place it in an antistatic bag.	99
Verifying the Installation	100
4	101
Troubleshooting	101
Troubleshooting Router Start Up Issues	101
Troubleshooting Router Booting Issues	101
Troubleshooting Router Boot Failure from the Flash Memory	101
Table 4-1 Booting: Router Fails to Boot from Flash Memory (continued)	104
Table 4-2 Booting: Vector Error Occurs When Booting from Flash Memory (continued)	107
Router Partially Boots from Flash and Displays Boot Prompt	109
Table 4-3 Booting: Router Partially Boots from Flash and Displays Boot Prompt (continued)	110
Troubleshooting Router Freeze After the ROM Monitor Initializes	112
Table 4-4 Booting: Router Hangs After ROM Monitor Initializes	112
Troubleshooting Router Freeze in the ROM Monitor Mode	112
Table 4-5 Booting: Router Is Stuck in ROM Monitor Mode	113
Troubleshooting Scrambled Output When Booting from ROM	113
Table 4-6 Booting: Scrambled Output When Booting from ROM	114
Troubleshooting Local Timeouts When Booting from ROM	114
Table 4-7 Booting: Local Timeouts Occur When Booting from ROM	114
Troubleshooting Unresponsive Terminal Connection to Unconfigured Access Server	114
Table 4-8 Booting: Unresponsive Terminal Connection to Unconfigured Access Server	115
Obtaining Technical Assistance	115
Figure 4-1 An Example of a Boot ROM Label-Boot ROM Version 12.2(33r)SRD5	116
A	117
Technical Specifications	117
Module Specifications	117
Table A-1 Environmental and Physical Specifications	117
Table A-2 SIP Environmental and Physical Specifications (continued)	117
Regulatory Standards Compliance	118
B	119
Cable Specifications	119
Interface Specifications	119
Table B-1 Cisco 7600 OSM Interface Specifications	119
Fiber-Optic Specifications	119
Switching Module RJ-45 10/100BASE-TX Ports	120
Table B-2 RJ-45 10/100BASE-TX Signals	120
Supervisor Engine 2 Console Port Signals and Pinouts	120
Console Port Mode Switch	120
Identifying a Rollover Cable	121
Figure B-1 Identifying a Rollover Cable	121
Console Port Mode 1 Signaling and Pinouts	121
DB-9 Adapter (for Connecting to a PC)	121
Table B-3 Port Mode 1: Console Port Signaling and Pinouts (DB-9 Adapter)	122
DB-25 Adapter (for Connecting to a Terminal)	122
Table B-4 Port Mode 1: Console Port Signaling and Pinouts (DB-25 Adapter)	122
Modem Adapter	122
Table B-5 Port Mode 1: Console Port Signaling and Pinouts (Modem Adapter)	123
Console Port Mode 2 Signaling and Pinouts	123
Table B-6 Console Port Pinouts (Port Mode Switch Out)	123
C	125
Upgrading the Memory on the OSM	125
Safety	125
Wrist Strap Warning	125
Required Tools	127
Upgrading the OSM Memory	127
Removing the SODIMM	128
Step 1 Make sure you take the necessary precautions to prevent ESD damage.	128
Step 2 Remove the OSM from the system. (See the “Removing the Supervisor Engine or a Module” section on page 3-13 for removal instructions.)	128
Step 3 Place the OSM on an antistatic mat or pad.	128
Step 4 Locate the SODIMM. (See Figure C-1.)	128
Figure C-1 Location of SDRAM SODIMM on an OSM	128
Step 5 Release the spring clips from the SODIMM that you want to remove, and release the SODIMM from the socket. (See Figure C-2.)	128
Figure C-2 Releasing the SODIMM Spring Clips	129
Step 6 When both ends of the SODIMM are released from the socket, grasp the ends of the SODIMM with your thumb and forefinger an...	129
Step 7 Place the SODIMM in an antistatic container to protect it from ESD damage.	129
Installing the New SODIMM	129
Figure C-3 Handling a SODIMM	130
Step 1 Remove a new SODIMM from the antistatic container.	130
Step 2 Hold the SODIMM component-side-up, with the connector edge (the metal fingers) away from you.	130
Step 3 Hold the sides of the SODIMM between your thumbs and forefingers. (See Figure C-3.)	130
Step 4 Tilt the SODIMM to approximately the same angle as the socket, and insert the connector edge into the socket.	130
Step 5 Press the SODIMM down until it is secured by the spring clips.	130
Step 6 When the SODIMM is installed, check the two alignment holes and ensure that the spring retainer is visible. If it is not,...	130
Step 7 Reinstall the OSM in the system. (See the “Installing a Supervisor Engine or a Module” section on page 3-2 for installation instructions.)	130