This document provides details of the Cisco cBR support for the Cisco cBR-8 2x100G DPIC and how to configure it on Cisco cBR
Finding Feature Information
Your software release may not support all the features that are documented in this module. For the latest feature information
and caveats, see the release notes for your platform and software release. The Feature Information Table at the end of this
document provides information about the documented features and lists the releases in which each feature is supported.
Hardware Compatibility Matrix for the Cisco cBR Series Routers
The hardware components that are introduced in a given Cisco IOS-XE Release are supported in all subsequent releases unless
Table 1. Hardware Compatibility Matrix for the Cisco cBR Series Routers
Cisco CMTS Platform
Cisco cBR-8 Converged Broadband Router
Cisco IOS-XE Release 16.5.1 and Later Releases
Cisco IOS-XE Release 16.5.1 and Later Releases
Cisco cBR-8 CCAP Line Cards:
Cisco cBR-8 Downstream PHY Modules:
Cisco cBR-8 Upstream PHY Modules:
Information About Cisco cBR 2x100G DPIC
The Cisco cBR-8 2x100G Digital Physical Interface Card (DPIC) fo Remote PHY provides two QSFP ports. The 2x100G DPIC works only with the
CBR-CCAP-LC-G2-R line card to transmit DEPI, UEPI, and GCP traffic from the Cisco cBR-8 router to Remote PHY devices.
The 2x100G DPIC has two groups of LEDs mapped to each QSFP port. If you have configured 10GE mode, QSFP0 maps to LEDs 0,2,4,
and 6, while QSFP1 maps to LEDs 1,3,5, and 7. If you have configured 100GE mode, QSFP0 maps to LED 0 and QSFP1 maps to LED
This DPIC supports Onboard Failure Logging (OBFL), environment monitoring, and FPD. However, the 2x100G DPIC does not support
8x10G DPIC or RF-PIC card protection.
The product ID (PID) of 2x100G DPIC is CBR-DPIC-2X100G.
Limitations on Downstream Bandwidth
For 2x100G DPIC, each XFI group supports a maximum of 10Gbps bandwidth—9Gbps for data traffic and 1Gbps for control packets.
An error message similar to the following is logged in the syslog, when the theoretical maximum bandwidth for all video channels
in a group exceeds 9Gbps.
%IOSXE-3-PLATFORM: CLC8: cdman: Video channel oversubscribed!! Downstream controller 8/0/0~7 bandwidth ratio is 100.1040%.
For CBR-CCAP-LC-G2-R cards that support 40G DPIC, eight 10GE interfaces are divided into four XFI groups.
For each 10G interface, theoretical bandwidth of all downstream channels configured under Te <slot>/<subslot>/0 and Te <slot>/<subslot>/1 must not exceed 9Gbps.
For CBR-CCAP-LC-G2-R cards supporting 40G DPIC 2x100G mode, only one 100GE interface is active. 32 downstream controllers
are divided into four XFI groups.
Since there is only one 100G interface, for each downstream controller, the theoretical bandwidth of all downstream channels
configured under cable downstream controller <slot>/<subslot>/0 | <slot>/<subslot>/7 must not exceed 9Gbps.
This table shows the theoretical maximum number of SCQAM downstream channels in each XFI group for different annex and QAM
Theoretical Bandwidth (Mbps)
Maximum Number of Downstream Channels
Support for Link Redundancy
The 2x100G DPIC supports only active-standby link redundancy mode, where if one interface is active, the other remains on
standby. The 2x100G DPIC does not support active-active link redundancy mode. But, if the 2x100G DPIC is configured to work
in the 8x10G DPIC mode, then the 2x100G DPIC supports active-standby and active-active link redundancy modes. Run the sh ip int b | in te slot/subslot command to view the details.
Router#sh ip int b | in Te9/1/
Te9/1/0 220.127.116.11 YES NVRAM up up
Te9/1/1 18.104.22.168 YES NVRAM administratively down down
Te9/1/2 22.214.171.124 YES VRAM up up
Te9/1/3 126.96.36.199 YES NVRAM administratively down down
Te9/1/4 188.8.131.52 YES NVRAM up up
Te9/1/5 184.108.40.206 YES NVRAM administratively down down
Te9/1/6 220.127.116.11 YES NVRAM up up
Te9/1/7 18.104.22.168 YES NVRAM administratively down down
If link redundancy is not enabled, then you cannot use port 1.
The 2x100G DPIC supports both standby-hot and standby-cold redundancy modes.
The 100GE <slot>/1/9 always remains administratively down irrespective of whether QSFP is installed or not. Run the sh ip int b | in Hu command to view the 100GE interface details.
Router#sh ip int b | in Hu
HundredGigE0/1/8 22.214.171.124 YES NVRAM up up
HundredGigE0/1/9 unassigned YES unset administratively down down
To view the 2x100G DPIC details, run the show platform
.This is a sample configuration.
Chassis type: CBR-8-CCAP-CHASS
Slot Type State Insert time (ago)
--------- ------------------- --------------------- -----------------
0 CBR-CCAP-LC-G2-R ok 01:06:50
0/1 CBR-DPIC-2X100G ok 01:03:36
1/1 CBR-RF-PROT-PIC ok 01:03:35
2/1 CBR-DPIC-8X10G ok 01:03:33
3 CBR-CCAP-LC-G2-R ok 01:06:50
3/1 CBR-DPIC-2X100G ok 01:03:29
Configure 2x100G DPIC Mode
The 2x100G DPIC supports two modes—10G and 100G modes. To create a DPIC-100G card with 2x100GE interface mode, perform these
To enable link redundancy, run the cable rphy link redundancy [hot | cold] command.
To verify if link redundancy is enabled, run the show redundancy digi-PIC command.
Router#show redundancy digi-PIC
Load for five secs: 26%/5%; one minute: 49%; five minutes: 45%
Time source is NTP, *13:26:58.020 CST Mon Jul 1 2019
RPHY Link HA: Cold mode enabled
Core Interface Port Mode Role Status
-------------- ---- ---------- -------- ------
Hu 0/1/8 8 Primary Active Up
Hu 0/1/8 9 Secondary Standby Ready
Hu 1/1/8 8 Primary Active Up
Hu 1/1/8 9 Secondary Standby Ready
Feature Information for 2x100G DPIC Support
Use Cisco Feature Navigator to find information about the platform support and software image support. Cisco Feature Navigator
enables you to determine which software images support a specific software release, feature set, or platform. To access Cisco Feature
Navigator, go to the https://cfnng.cisco.com/ link. An account on the Cisco.com page is not required.
The following table lists the software release in which a given feature is introduced. Unless noted otherwise, subsequent
releases of that software release train also support that feature.
Table 2. Feature Information for 2x100G DPIC Support
Support for 2x100G DPIC
Cisco IOS XE Gibraltar 16.12.1
This feature was introduced in Cisco IOS XE Gibraltar 16.12.1 on Cisco cBR Series Converged Broadband Router.