Cisco cBR Series - User Manual

Other manuals for Cisco cBR Series

Hardware Installation Guide270 pages

Configuration Guide58 pages

Questions and Answers

F
Frederick GrimesAug 18, 2025
What to do if the show platform command shows a Power Module (P0 to P5) in failed state on a Cisco cBR Network Router?
- K
  Kevin LangAug 18, 2025
  If the output of the show platform command shows the Power Module (P0 to P5) in a failed state, it could be due to several reasons. First, ensure the Power Module is properly inserted into the chassis. If it is, verify that the Power Module is receiving power by connecting it to the corresponding FPEM. If the issue persists, the Power Module may have entered an abnormal state, in which case it should be replaced.
T
timothywilliamsAug 21, 2025
What to do if the show platform command shows a Fan Module (P10 to P14) in failed state on a Cisco cBR Network Router?
- C
  Charles LiuAug 21, 2025
  If the output of the show platform command indicates that a Fan Module (P10 to P14) is in a failed state, first ensure that the Fan Module is properly inserted. If the fan is inserted correctly and the issue persists, it is possible the Fan Module has entered an abnormal state and needs to be replaced.
A
andreaallisonAug 23, 2025
What to do if I see an SNMP-3-RESPONSE_DELAYED error message on my Cisco cBR?
- A
  Adam WilliamsAug 23, 2025
  If the SNMP-3-RESPONSE_DELAYED error message appears in the show logging output, it indicates that the SNMP process is taking too long to get an OID. To troubleshoot this, first check the CPU usage using the command `show process cpu history`. Then, execute `test snmp cpu-stats start`, wait for the error message to reappear, and check the output of `show snmp cpu-stats` to see if the OID in the error message displays a large value. If it does, contact cBR support. Otherwise, investigate the reason for high CPU usage.
B
Brittany GreenAug 26, 2025
What to do if the RPLC LED of a fan is illuminated with White light on Cisco cBR Network Router?
- K
  Kimberly CastanedaAug 26, 2025
  If the RPLC LED of a fan is illuminated with White light, it indicates a failure of a Fan Module hardware component or a minor alarm. Replace the Fan Module.
C
Cody MeyerAug 28, 2025
What to do if the RPLC LED of a fan is illuminated with Amber light on Cisco Network Router?
- R
  rhallAug 28, 2025
  If the RPLC LED of a fan is illuminated with Amber light, and all the Fan Modules are acoustically elevated with Amber illumination of one LED on a fan, it indicates a failure of a Fan Module hardware component or a minor alarm. Replace the Fan Module.
T
thomas55Aug 30, 2025
What to do if the STATUS LED of a fan is illuminated with Amber light on Cisco cBR?
- D
  Diane PierceAug 30, 2025
  If the STATUS LED of a fan is illuminated with Amber light, and the Fan Module shows no acoustic indication of failure, or if all fans are acoustically elevated with Amber illumination of one LED on a fan, it indicates a failure of a Fan Module hardware component or a minor alarm. Replace the Fan Module.
D
David HendersonSep 1, 2025
Why are Cisco cBR's Supervisor Cards prevented from powering up?
- J
  josephrodgersSep 1, 2025
  If the Cisco cBR's Supervisor Cards are prevented from powering up, it is likely due to a serious failure in one or more of the Fan Modules, preventing them from operating. Replace the faulty Fan Module to resolve this issue.
M
Mark HardingSep 3, 2025
What does it mean if the REPLACE LED is illuminated in white color on a Cisco cBR Network Router?
- M
  Matthew BeanSep 3, 2025
  If the REPLACE LED is illuminated in white color, it means that the interface card needs to be replaced.
T
Theresa WatkinsSep 6, 2025
What does PowerGood value 0 mean in the show cable card command on Cisco cBR?
- C
  Courtney AdamsSep 6, 2025
  If the PowerGood value is 0 in the output of the show cable card slot/subslot ds-phy display include PowerGood command, it indicates that the downstream PHY module in the line card is not powered up. Re-install the downstream PHY module to ensure it is properly seated.
M
mariameltonSep 8, 2025
What causes chip level thermal shutdown alarms to be tripped on a Cisco cBR?
- A
  Abigail RodriguezSep 8, 2025
  If the chip level thermal shutdown alarms are tripped, and the cards are powered off for thermal protection shutdown, it is due to a fan failure during elevated temperature conditions, where not all fans are functioning properly. Replace the faulty Fan Module.

Summary

Removing the AC Power Connections from the Cisco CBR Chassis

Removing the DC Power Connections from the Cisco CBR Chassis

Removing the Power Module from the Cisco CBR Chassis

Removing the FPEM from the Cisco CBR Chassis

Removing the Power Cassette Module from the Cisco CBR Chassis

Cisco cBR Series Specifications

General

Category	Network Router
Modular Design	Yes
Operating System	Cisco IOS XE
Model Examples	cBR-8, cBR-4
Product Series	cBR Series
Purpose	Converged Broadband Router
DOCSIS Support	DOCSIS 3.1
Redundancy	Yes
Management	Cisco Prime
Product Family	cBR Series
Downstream Frequency Range	Up to 1.2 GHz
Upstream Frequency Range	Up to 204 MHz
Modulation Schemes	QAM
Power Supply	Redundant AC or DC power supplies
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
Humidity	5 to 95% noncondensing