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This document provides details of the Cisco cBR support for the Cisco cBR-8 2x100G DPIC and how to configure it on Cisco cBR
Series Routers.
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
Note
The hardware components that are introduced in a given Cisco IOS-XE Release are supported in all subsequent releases unless
otherwise specified.
Table 1. Hardware Compatibility Matrix for the Cisco cBR Series Routers
Cisco CMTS Platform
Processor Engine
Interface Cards
Cisco cBR-8 Converged Broadband Router
Cisco IOS-XE Release 16.5.1 and Later Releases
Cisco cBR-8Supervisor:
PID—CBR-SUP-250G
PID—CBR-CCAP-SUP-160G
PID—CBR-CCAP-SUP-60G
Cisco IOS-XE Release 16.5.1 and Later Releases
Cisco cBR-8 CCAP Line Cards:
PID—CBR-LC-8D30-16U30
PID—CBR-LC-8D31-16U30
PID—CBR-RF-PIC
PID—CBR-RF-PROT-PIC
PID—CBR-CCAP-LC-40G
PID—CBR-CCAP-LC-40G-R
PID—CBR-CCAP-LC-G2-R
PID—CBR-SUP-8X10G-PIC
PID—CBR-2X100G-PIC
Digital PICs:
PID—CBR-DPIC-8X10G
PID—CBR-DPIC-2X100G
Cisco cBR-8 Downstream PHY Module:
PID—CBR-D31-DS-MOD
Cisco cBR-8 Upstream PHY Modules:
PID—CBR-D31-US-MOD
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
1.
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.
10GE Port
XFI Group
0
0
1
2
1
3
4
2
5
6
3
7
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.
Controller
XFI Group
0-7
0
8-15
1
16-23
2
24-31
3
This table shows the theoretical maximum number of SCQAM downstream channels in each XFI group for different annex and QAM
modulation.
Annex
QAM Modulation
Theoretical Bandwidth (Mbps)
Maximum Number of Downstream Channels
Annex A
64
38.4
234
Annex A
256
51.3
175
Annex B
64
26.9
334
Annex B
256
38.8
231
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 90.0.0.1 YES NVRAM up up
Te9/1/1 91.0.0.1 YES NVRAM administratively down down
Te9/1/2 92.0.0.1 YES VRAM up up
Te9/1/3 93.0.0.1 YES NVRAM administratively down down
Te9/1/4 94.0.0.1 YES NVRAM up up
Te9/1/5 95.0.0.1 YES NVRAM administratively down down
Te9/1/6 96.0.0.1 YES NVRAM up up
Te9/1/7 88.0.97.1 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
HundredGigE0/1/8 209.165.200.225 YES NVRAM up up
HundredGigE0/1/9 unassigned YES unset administratively down down
How to Configure 2x100G DPIC
View 2x100G DPIC Details
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
steps.
To verify the 2x100G ethernet interface status, run the show interfaces HundredGigE <slot>/1/<8-9>
.This is a sample configuration.
Router# show interface HundredGigE 3/1/8
HundredGigE3/1/8 is up, line protocol is up
Hardware is CBR-DPIC-2X100G, address is 1ce4.3df59.6e12 (bia 1c6.8df5.1c13)
Internet address is 209.165.200.225/24
MTU 2350 bytes, BW 100000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
. . .
Full Duplex, 100000Mbps, link type is force-up, media type is QSFP_100GE_SR
. . .
30 second input rate 10000 bits/sec, 5 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
26487 packets input, 6442316 bytes, 0 no buffer
Received 3913 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 22571 multicast, 0 pause input
965 packets output, 152548 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
1375 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
Switch Between 8x10G and 2x100G Modes
To switch between 8x10G and 2x100G modes, perform these steps.
Verify the current mode by running the show run command.
Router# configure terminal
Router#sh run | in card 9/0
card 9/0 CBR-CCAP-LC-G2-R r-phy DPIC-G2-10GE
Switch modes by running these commands.
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hw-module slot 9 shutdown
Router(config)#hw-module subslot 9/1 shutdown
Router(config)#no card 9/0 CBR-CCAP-LC-G2-R r-phy DPIC-G2-10GE
Router(config)#card 9/0 CBR-CCAP-LC-G2-R r-phy DPIC-G2-100GE
Router(config)#no hw-module subslot 9/1 shutdown
Router(config)#no hw-module slot 9 shutdown
Router(config)#end
Verify the mode again by running the show run command.
Router#sh run | in card 9/0
card 9/0 CBR-CCAP-LC-G2-R r-phy DPIC-G2-100GE
Run the show platform command to verify the status of the DPIC.
Router# show platform
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
Configure RPD
To configure RPD using the 100G interface, use the cable rpd node command. This is an example of onfiguring RPD.
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.
Note
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
Feature Name
Releases
Feature Information
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.
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