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Cisco Remote PHY Line Card and Supervisor Redundancy
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.
Use Cisco Feature Navigator to find information about the platform support and Cisco software image support. To access Cisco
Feature Navigator, go to the link http://tools.cisco.com/ITDIT/CFN/. An account at the http://www.cisco.com/ site is not required.
Hardware Compatibility Matrix for Cisco Remote PHY Device
Note
The hardware components introduced in a given Cisco Remote PHY Device Software Release are supported in all subsequent releases
unless otherwise specified.
Table 1. Hardware Compatibility Matrix for the Cisco Remote PHY Device
Cisco HFC Plaform
Remote PHY Device
Cisco GS7000 Node
Cisco 1x2 RPD Software 1.1 and Later Releases
Cisco Remote PHY Device 1x2
PID—RPD-1X2=
Information About Remote PHY Line Card and Superviosr Redundancy
Line Card Redundancy
In Remote PHY (R-PHY) configuration, RPDs connect to both active linecard and standby linecard, and have active connections
to active linecard, standby connections to standby linecard. From RPD side, it connects to active core and standby core independently.
Each RPD has one principal core, and may have several auxiliary cores. LCHA needs to support multiple cores. These cores are
on the same linecard or different linecards. The port on the standby linecard can protect all the same ports on the active
linecards.
Figure 1. Multiple cores on the same line card
In the figure above, the RPD has multiple cores connected to the same active linecard. In order to support LCHA, RPD needs
to connect to the same port on the standby linecard. In this way, RPD has several standby cores to protect the active cores.
The standby core have the same resource as the active core.
When multiple cores connect to different active linecards, if they connect to different ports of the linecard, there will
have different standby cores. If active core connects to the same port on different linecard, they share one standby core.
Figure 2. Multiple cores on different line cards
In the figure above, RPD have two standby cores. One standby core connects to port 6 of the standby linecard, it can protect
the active core which connects to port 6 of the active linecard 2. The other standby core connects to port 0 of the standby
linecard, it can protect the active cores connect to port 0 of linecard 0 and linecard 1. So for the standby core 0, it contains
the resource for both active core 0 and active core 1.
When active linecard 0 fails over to standby linecard, the standby core 1 will be deleted, the standby core 0 will bring the
resource of active core 0 to active. When linecard 2 fails over to standby linecard, the standby core 0 will be deleted, and
standby core 1 will become active for active core 3.
Compared to the SUP high availability recover process in iCMTS configuration, the Remote PHY SUP high availability recover
process has RPD status change as shown in the example below:
show cable rpd 0004.9f00.0625 lcha-cores
MAC Address IP Address I/F State Role HA Name
0004.9f00.0625 120.105.6.10 Te0/1/1 recovering Pri Act node1
0004.9f00.0625 120.105.6.10 Te9/1/1 recovering NA Sby node1
show cable rpd 0004.9f00.0625 lcha-cores
MAC Address IP Address I/F State Role HA Name
0004.9f00.0625 120.105.6.10 Te0/1/1 init(l2tp) Pri Act node1
0004.9f00.0625 120.105.6.10 Te9/1/1 init(l2tp) NA Sby node1
show cable rpd 0004.9f00.0625 lcha-cores
MAC Address IP Address I/F State Role HA Name
0004.9f00.0625 120.105.6.10 Te0/1/1 online Pri Act node1
0004.9f00.0625 120.105.6.10 Te9/1/1 online NA Sby node1
The status of the RPD changes from recovering to online, indicating that the SUP redundancy is working in the Remote PHY configuration.
The following example shows how to configure Remote PHY Line Card Redundancy:
Router# configure terminal
Router(config)# redundancy
Router(config-red)# mode sso
Router(config-red)# linecard-group 0 internal-switch
Router(config-red-lc)# class 1:N
Router(config-red-lc)# member slot 8 primary
Router(config-red-lc)# member slot 6 secondary
Router(config-red-lc)# no revertive
Verifying Remote PHY Line Card Redundancy Configuration
To verify the Remote PHY line card redundancy configuration, use the example below:
Router# show redundancy linecard all
LC My Peer Peer Peer
Slot Subslot Group State State Slot Subslot Role Mode
---------------------------------------------------------------------------------
8 - 0 Active Stdby Warm 6 - Active Primary
6 - 0 - - Multiple None Standby Secondary
Router# show cable rpd lcha-cores
MAC Address IP Address I/F State Core Role HA Role
0004.9f03.0055 80.6.16.15 Te6/1/0 online Principal Standby
0004.9f03.0055 80.6.16.15 Te8/1/0 online Principal Active
0004.9f03.0163 80.6.16.16 Te6/1/1 online Principal Standby
0004.9f03.0163 80.6.16.16 Te8/1/1 online Principal Active
Router# show cable rpd
MAC Address IP Address I/F State Core Role HA Role
0004.9f03.0055 80.6.16.15 Te6/1/0 online Principal Active
0004.9f03.0163 80.6.16.16 Te6/1/1 online Principal Active
Feature Information for Remote PHY Line Card and Supervisor Redundancy
The following table provides release information about the feature or features described in this module. This table lists
only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise,
subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco
Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Table 2. Feature Information for Remote PHY Line Card and Supervisor Redundancy
Feature Name
Releases
Feature Information
Remote PHY LCHA
Cisco 1x2 RPD Software 1.1
This feature was introduced on the Cisco Remote PHY Device.
Remote PHY SUPHA
Cisco 1x2 RPD Software 1.1
This feature was introduced on the Cisco Remote PHY Device.
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