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A-6
Cisco Catalyst 4000 Access Gateway Module Installation and Configuration Note
OL-3008-01
Appendix A Identifying Hardware Problems with the ROM Monitor
ROM Monitor Commands
Debugging Commands
This section lists the ROM monitor debugging commands.
Most debugging commands are functional only when IOS software has crashed or is aborted. If you enter
a debugging command and IOS crash information is unavailable, this error message is displayed:
“xxx: kernel context state is invalid, can not proceed.”
stack or k
Enter the stack command produces a stack trace. An example of this command is as follows:
rommon 2 > k
Stack trace:
PC = 0x80266a38
Frame 00:FP = 0x80006560 PC = 0x80266a38
Frame 01:FP = 0x8000656c PC = 0x80265ac0
Frame 02:FP = 0x8000662c PC = 0x80262718
Frame 03:FP = 0x8000665c PC = 0x8002011c
Frame 04:FP = 0x8000666c PC = 0x80020068
Frame 05:FP = 0x80006684 PC = 0xfff03e7c
Invalid FP = 0x800066bc, cannot proceed
context
Enter the context command to display processor context. An example of this command is as follows:
rommon 5 > context
CPU context of the most recent exception:
PC = 0x801ca8d0 MSR = 0x00009032 CR = 0x22000022 LR = 0x801c61f0
CTR = 0x801ed28c XER = 0x00000000 DAR = 0xffffffff DSISR = 0xffffffff
DEC = 0xffffffff TBU = 0xffffffff TBL = 0xffffffff IMMR = 0xffffffff
R0 = 0x801c61f0 R1 = 0x80006540 R2 = 0xffffffff R3 = 0x00000000
R4 = 0x00000000 R5 = 0x81858a7c R6 = 0x00009032 R7 = 0xdeadfeed
R8 = 0x00000000 R9 = 0x00000000 R10 = 0x0000fe8c R11 = 0x00000000
R12 = 0x0000003c R13 = 0xffffffff R14 = 0xffffffff R15 = 0xffffffff
R16 = 0xffffffff R17 = 0xffffffff R18 = 0xffffffff R19 = 0xffffffff
R20 = 0xffffffff R21 = 0xffffffff R22 = 0xffffffff R23 = 0xffffffff
R24 = 0xffffffff R25 = 0xffffffff R26 = 0xffffffff R27 = 0xffffffff
R28 = 0xffffffff R29 = 0xffffffff R30 = 0xffffffff R31 = 0xffffffff
rommon 6 >
frame
Enter the frame command to display an individual stack frame. An example of this command is as
follows:
rommon 5 > frame 00
Frame 00:FP = 0x80006560 PC = 0x80266a38
at 0x80006568 (fp + 0x08) = 0x817b4280
rommon 6 > frame 01
Frame 01:FP = 0x8000656c PC = 0x80265ac0
at 0x80006574 (fp + 0x08) = 0x00000000
at 0x80006578 (fp + 0x0c) = 0x80010000
at 0x8000657c (fp + 0x10) = 0xfff30000
at 0x80006580 (fp + 0x14) = 0x80020000
at 0x80006584 (fp + 0x18) = 0x83ff7800
at 0x80006588 (fp + 0x1c) = 0x80020000
at 0x8000658c (fp + 0x20) = 0x8000667c
- Cisco Catalyst 4000 1
- Access Gateway Module 1
- CONTENTS 3
- Contents 4
- Audience 9
- Organization 9
- Conventions 10
- Safety Overview 11
- Related Documentation 12
- Obtaining Documentation 13
- Documentation Feedback 14
- Cisco.com 14
- Technical Assistance Center 15
- Overview 17
- IP Telephony Campus 18
- Large Branch Office 18
- • the console port on the AGM 19
- Hardware Features 20
- Cisco Catalyst 4000 DSP Set 21
- Data Interface Modules 21
- Voice Interface Modules 22
- Signaling Support on AGM 23
- Switch-Type Support on AGM 23
- Software Features 24
- Security 25
- Resiliency 25
- Network Management Support 26
- Preparing to Install the AGM 27
- Installing the AGM 29
- Hot-Swapping Features 31
- Checking the AGM Operation 32
- Power Supply 1 34
- Power Supply 2 34
- WAN Interface Modules 35
- SEE MANUAL 36
- INSTALLATION 36
- Straight-through 41
- RJ-11-to-RJ-11 cable 41
- RJ-11 ports 41
- RJ-11 wall jack 41
- RJ-21 Connectors 42
- Velcro strap 43
- ConfigurableNot used 45
- RJ-48S ports 47
- RJ-48S wall jack 47
- RJ-48C ports 48
- NT1 device 48
- RJ-45-to-RJ-45 cable 48
- S/T port 48
- RJ-48C-to-RJ-48C cable 50
- RJ-48C wall jack 50
- Booting the AGM 53
- Accessing the AGM 54
- Configuring the Console Port 55
- Connecting a Terminal 56
- Connecting a Modem 56
- Using the Cisco IOS CLI 57
- Getting Help 58
- Command Modes 58
- Gateway(config-if)# 59
- (config 59
- Gateway(config-dial-peer)# 59
- Saving Configuration Changes 60
- Table 4-2 ISDN Switch Types 68
- Configuring T1 Interfaces 69
- Configuring E1 Interfaces 71
- Preparing to Configure VoIP 75
- Configuring Voice Interfaces 76
- MGCP Configuration 77
- Enabling MGCP 78
- • E&M Wink Start 81
- • E&M Delay Start 81
- H.323 Gateway Configuration 86
- FXS Emulation Example 90
- FXO Emulation Example 90
- E&M Emulation Example 91
- Configuring ISDN BRI Lines 92
- Gateway 1 Configuration 95
- T1/E1 Configuration (H.323) 96
- T1/PRI Configuration Example 97
- E1/PRI Configuration Example 98
- Configuration for AGM AGLB-1 99
- Configuration for AGM AGLB-2 100
- FXO Connection to PSTN 101
- San Jose Salt Lake City 102
- AGM SLC Configuration 103
- OL-3008-01 104
- Configuring FXS Voice Ports 106
- Validating the Configuration 107
- Fine-Tuning FXS Voice Ports 108
- Activating the Voice Port 110
- Sample Configuration 110
- Verifying the Configuration 120
- Sample Configurations 121
- Configuration File for Peer 1 124
- Configuration File for Peer 2 126
- Configuring the DSP Farm 129
- IP Telephony Gateway Mode 130
- Conferencing Service 131
- Transcoding Service 132
- Troubleshooting the AGM 137
- Troubleshooting Controller 138
- Troubleshooting Hardware 141
- Troubleshooting TDM 141
- Troubleshooting DSP 142
- SIMM 3 DSP 12–17 143
- SIMM 4 DSP 18–23 143
- Entering ROM Monitor Mode 145
- Configuring for Autoboot 146
- ROM Monitor Commands 147
- Debugging Commands 150
- Cookie Commands 151
- Upgrading the ROM Monitor 157
- Using Loss Plan Defaults 159
- Transmission Loss Plan 160
- Console Connector Pinouts 161
- Management Port Pinouts 161
- Identifying a Rollover Cable 163
- Connecting to a PC 164
- Connecting to a Terminal 164
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