Cisco UBR924 - uBR 924 Router Support and Manuals
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Troubleshooting Guide - Page 1
...use of multiple classes of service (CoS) on in the HFC headend such as a Cisco uBR7200 series universal broadband router, a DHCP server, and a TFTP server. Troubleshooting Tips for the Cisco uBR924 Cable Access Router
Feature Summary
This document describes the Cisco IOS troubleshooting commands that may also be affected when transmitting or downloading large files, or at other peripheral...
Troubleshooting Guide - Page 2
... Related Features and Technologies
Note The Cisco uBR924 cable access router is allowed. Most cable service operators do not permit local configuration at the cable operator's headend facility.
If remote configuration is disabled, settings you make and save at the headend. for the Cisco uBR924 Cable Access Router • Cisco uBR7246 Installation and Configuration Guide • Cisco...
Troubleshooting Guide - Page 3
... universal broadband router, Cisco IOS Release 12.0(4)XI1 or higher must be used on the headend router.
• The Cisco uBR924 must be configured to use the Cisco uBR924 cable access router for VoIP-over -cable applications, the following MIBs and RFCs:
• Cisco Standard MIBs:
- Cisco Syslog MIB
Troubleshooting Tips for Internet
Protocol (IP).
• The cable service provider must...
Troubleshooting Guide - Page 4
... such as MAC, driver configuration, and counters.
• Cable Device MIB-Records statistics related to Data-Over-Cable Service Interface
Specification (DOCSIS) cable implementations. Using SNMP management applications, this path:
Products & Ordering: Cisco Products: Network Management: CiscoWorks - The Cisco uBR924 cable access router is placed at http://www.cisco.com/public/sw-center...
Troubleshooting Guide - Page 5
... the computer system connected to the LAN interface of two signals. Troubleshooting Tips for data-over which CATV systems are inadvertently coupled into the nominally closed coaxial cable distribution system. cable router-A modular chassis-based router optimized for the Cisco uBR924 Cable Access Router 5 channel-A specific frequency allocation and bandwidth. dB-Decibel.
In data transmission...
Troubleshooting Guide - Page 7
... server
Cisco uBR7246
CMTS
Analog TV
100BT 100BT
ISP @ home...
100BT
MSD: Maintenance Service Organization, Cable companies
Upconvertor
DS-RF 54-860 Mhz
Digital TV
Fiber Transceiver
Fiber node (Telephone pole, underground box)
80 km
1000 ft
Distribution
Top
amplifier amplifier
Drop box
13304
Cisco u BR904 cable modem
Troubleshooting Tips for the Cisco uBR924 Cable Access Router...
Troubleshooting Guide - Page 10
....
10 Cisco IOS Release 12.0(5)T Ranging is used to the Cisco uBR924
. Establish the time of the Cisco uBR924. Perform registration. If the interface is not up, you will need to obtain an IP address, which is performed in non-volatile memory. The Cisco uBR924 acquires a downstream channel from a configuration file stored on the Cisco uBR924 may have been deactivated by the cable service...
Troubleshooting Guide - Page 16
... by cable modem manufacturers. The CMAC_LOG_DHCP_COMPLETE field shows that contains additional configuration parameters, the TFTP server's address and the Time of day sequence.
508177.120 CMAC_LOG_STATE_CHANGE 508177.126 CMAC_LOG_TOD_REQUEST_SENT 508177.154 CMAC_LOG_TOD_REPLY_RECEIVED 508177.158 CMAC_LOG_TOD_COMPLETE
establish_tod_state 3107617539
Event 7-Establish Security
The Cisco uBR924...
Troubleshooting Guide - Page 17
...
2
856.330 CMAC_LOG_PRIVACY_ESTABLISHED
Note In order for baseline privacy to be "sniffed" by the cable access router. Multiple CoS entries in the configuration file that is configured to use a code image name on the Cisco uBR924 that contains the characters k1. Following is on the cable company's TFTP server. During this event, a link level encryption is performed so that...
Troubleshooting Guide - Page 23
...-noise ratio (SNR) that the Cisco uBR924 searched for the receive data ring. Size in bytes of the tuner. Downstream Broadcom receiver chip number and ID. show controllers cable-modem 0 mac state command to see the power level in dBmV. Indicates the memory location of the beginning of the file stored on which the transmitter and...
Troubleshooting Guide - Page 26
... cable access router. show controllers cable-modem number bpkm
Syntax Description
number
Controller number inside the Cisco uBR924 cable access router. Usage Guidelines
Baseline privacy key management exchanges take place only when both the Cisco uBR924 and the CMTS are running code images that support baseline privacy, and the privacy class of service is enabled via the configuration file that...
Troubleshooting Guide - Page 43
...respond to set the Write Access Control for an SNMP parameter as specified by the DOCSIS configuration file.
The CMTS failed too many times.
The downstream tuner process failed to detect a change in the DOCSIS configuration file. The Cisco uBR924 MAC layer failed to report its continuing operation for the Cisco uBR924 Cable Access Router 43
show controllers cable-modem mac
Table...
Troubleshooting Guide - Page 51
... or configured as a power of seconds the Cisco uBR924 waits for...service class on /off Network Access Vendor ID Auth.
Troubleshooting Tips for the corresponding service class. show controllers cable-modem mac
Table 8
Show Controllers Cable-Modem...replacement key for its initial Key Request for this service class.
Service ID assigned by the CMTS for the Cisco uBR924 Cable Access Router...
Troubleshooting Guide - Page 52
..., expressed as a power of 2.
IP address of the cable interface.
show controllers cable-modem bpkm Displays information about a Cisco uBR924 cable access router.
show controllers cable-modem phy
Displays the contents of the registers used by a Cisco uBR924.
52 Cisco IOS Release 12.0(5)T
show controllers cable-modem filters .Displays the registers in the downstream physical...
Troubleshooting Guide - Page 59
...: Line protocol on a Cisco uBR924, use the no form of service is enabled via the configuration file that support baseline privacy, and the privacy class of this command.
[no] debug cable-modem bpkm {errors | events | packets}
Syntax Description
errors events packets
Debugs Cisco uBR924 privacy errors. Debugs events related to up
Troubleshooting Tips for the Cisco uBR924 contain k1 in...
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