-
- Downstream Interface Configuration
- Upstream Interface Configuration
- DOCSIS Interface and Fiber Node Configuration
- DOCSIS Load Balancing Groups
- DOCSIS Load Balancing Movements
- DOCSIS 3.0 Downstream Bonding
- DOCSIS 2.0 A-TDMA Modulation Profiles
- Downstream Resiliency Bonding Group
- Downstream Channel ID Assignment
- Upstream Channel Bonding
- Spectrum Management and Advanced Spectrum Management
- Upstream Scheduler Mode
- Generic Routing Encapsulation
- Transparent LAN Service over Cable
- Downgrading Channel Bonding in Battery Backup Mode
- Energy Management Mode
-
- IP Access Control Lists
- Creating an IP Access List and Applying It to an Interface
- Creating an IP Access List to Filter IP Options, TCP Flags, Noncontiguous Ports
- Refining an IP Access List
- IP Named Access Control Lists
- IPv4 ACL Chaining Support
- IPv6 ACL Chaining with a Common ACL
- Commented IP Access List Entries
- Standard IP Access List Logging
- IP Access List Entry Sequence Numbering
- ACL IP Options Selective Drop
- ACL Syslog Correlation
- IPv6 Access Control Lists
- IPv6 Template ACL
- IPv6 ACL Extensions for Hop by Hop Filtering
-
- Call Home
- SNMP Support over VPNs—Context-Based Access Control
- SNMP Cache Engine Enhancement
- Onboard Failure Logging
- Control Point Discovery
- IPDR Streaming Protocol
- Usage-Based Billing (SAMIS)
- Frequency Allocation Information for the Cisco CMTS Routers
- Flap List Troubleshooting
- Maximum CPE and Host Parameters
- SNMP Background Synchronization
- Online Offline Diagnostics
- Index
- Hardware Compatibility Matrix for Cisco cBR Series Routers
- Prerequisites for Downstream Resiliency Bonding Group
- Restrictions for the Downstream Resiliency Bonding Group
- Information About Downstream Resiliency Bonding Group
- How to Configure Downstream Resiliency Bonding Group
- Verifying Downstream Resiliency Bonding Group Configuration
- Troubleshooting the Downstream Resiliency Bonding Group Configuration
- Configuration Examples for the Downstream Resiliency Bonding Group
- Additional References
- Feature Information for Downstream Resiliency Bonding Group
Downstream Resiliency Bonding Group
With more wideband (WB) modems being deployed in cable plants, WB modem resiliency is an important feature. When a comparatively smaller number of cable modems (CMs) observe an impairment on an RF channel, then all cable modems using that RF channel are shut down irrespective of whether they are affected or not. Instead, the solution should be to communicate with the affected cable modems using the good RF channel, without affecting the other cable modems.
The Downstream Resiliency Bonding Group feature allows cable modems with multiple impaired RF channels to be allocated to a dynamically-created wideband interface, which ensures that the performance of the wideband cable modems is not drastically affected.
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://tools.cisco.com/ITDIT/CFN/. An account on http://www.cisco.com/ is not required.
Contents
- Hardware Compatibility Matrix for Cisco cBR Series Routers
- Prerequisites for Downstream Resiliency Bonding Group
- Restrictions for the Downstream Resiliency Bonding Group
- Information About Downstream Resiliency Bonding Group
- How to Configure Downstream Resiliency Bonding Group
- Verifying Downstream Resiliency Bonding Group Configuration
- Troubleshooting the Downstream Resiliency Bonding Group Configuration
- Configuration Examples for the Downstream Resiliency Bonding Group
- Additional References
- Feature Information for Downstream Resiliency Bonding Group
Hardware Compatibility Matrix for Cisco cBR Series Routers
Note | The hardware components introduced in a given Cisco IOS-XE Release are supported in all subsequent releases unless otherwise specified. |
Cisco CMTS Platform |
Processor Engine |
Interface Cards |
---|---|---|
Cisco cBR-8 Converged Broadband Router |
Cisco IOS-XE Release 3.15.0S and Later Releases Cisco cBR-8 Supervisor:
|
Cisco IOS-XE Release 3.15.0S and Later Releases Cisco cBR-8 CCAP Line Cards: Cisco cBR-8 Downstream PHY Modules: Cisco cBR-8 Upstream PHY Modules: |
Prerequisites for Downstream Resiliency Bonding Group
Restrictions for the Downstream Resiliency Bonding Group
-
If an existing wideband interface is reserved as a Resiliency Bonding Group (RBG) and later the RBG is removed (through the no cable ds-resiliency command), the modems using this RBG go offline and the RBG configuration itself is deleted. Therefore, it is highly recommended that users should not configure an existing BG as an RBG.
-
This feature is enabled only when the number of cable modems observing an RF channel impairment is below the resiliency threshold. If the number of cable modems on an impaired RF channel is above the resiliency threshold, the impaired RF channel is temporarily removed from the bonding group.
-
A cable modem is assigned to an RBG on a first-come-first-served basis. To handle this feature optimally, it is recommended to set aside more WB interfaces and RF channel bandwidth.
-
The Cisco CMTS controls the freeing of unused RBGs, when there is no modem using the RGB. The freeing of the unused RGB may take some time and the RGB, which is not completely free cannot be used by the modems. Irrespective of the number of configured RBGs, if all the old RBGs are not completely set free and if the Cisco CMTS tries to move the cable modem to a new RBG, the Cisco CMTS moves the cable modem to the primary DS channel instead of RBG.
-
Only SFs on the WB interface associated with the primary SF are moved to an RBG. SFs on other interfaces will not be moved.
-
Static SFs are assigned to an RBG on a best effort quality of service (QoS).
-
If the resiliency rf-change-trigger setting does not have the secondary keyword set, only the primary SF is moved to the RBG or a NB interface.
-
If the Downstream Resiliency Bonding Group feature is not enabled to use an RBG, only cable modems with impairments on the primary WB interface are moved to the NB interface.
-
SFs carrying multicast traffic are not moved.
There may not be enough reserved bonding groups to support all modems facing an impairment at any given time thus the following restrictions must be considered:
-
Each RBG has at least two RF channels.
-
RBG RF assignments are always a subset of the RF channel assignment of the parent WB interface.
-
If an RBG is unavailable for a cable modem, the SF of the CM is moved to a NB interface.
-
If a high percentage of cable modems experience an RF impairment and there are no more available bonding group IDs, the impaired RF itself may be removed from the bonding group. Removal of an impaired RF from a parent bonding group is also reflected in the RBG. If an RBG drops to a single RF, all SFs are moved to the NB interface.
The Downstream Resiliency Bonding Group feature has the following cross-functional restrictions:
-
All Dynamic service flows, whether they require a committed information rate (CIR) or not, typically voice flows, are created on the NB interface when an RF channel is impaired. Because all SFs assigned to an RBG are best effort only, voice calls may report a quality issue.
-
Cable modems participating in the resiliency mode do not take part in load balancing.
-
The Downstream Resiliency Bonding Group feature is only supported in the Dynamic Bandwidth Sharing (DBS) mode.
Information About Downstream Resiliency Bonding Group
You can set aside unused bonding groups as RBGs. Ensure that each RF channel is assigned at least 1% of the available bandwidth. Use the cable rf-channel bandwidth-percent command to configure the RF channel bandwidth.
Note | If the bandwidth-percent is set to 100, the Cisco CMTS does not add any RFs to the RBG. In other words, this feature will not be enabled. |
The Cisco CMTS controls the assignment and freeing of unused RBGs. If an RF channel is removed from a WB interface, it is also removed from any associated RBGs.
Note | If the wideband interface is in standby mode, the Cisco CMTS does not assign or free up the unused downstream bonding group. |
A suspended RF channel is restored for all affected wideband interfaces when a specified number of cable modems report (via CM-STATUS) that the channel connectivity is restored. The Wideband Modem Resiliency feature defines the specified number of cable modems as half of the configured count or percentage of rf-change-trigger, or both. For example, if the count is 20 and the percent is 10, then the number of cable modems reporting recovery should reduce the count to 10 and the percent to 5 for the suspended RF channel to be restored.
Finding a Best-Fit RBG for the Cable Modem
A bonding group is a list of channels that provide a means to identify the channels that are bonded together. The Cisco CMTS assigns a service flow (SF) to an RBG based on the attributes of the SF and the attributes of the individual channels of the bonding group.
In the Downstream Resiliency Bonding Group feature, when a line card receives a CM-STATUS message from the cable modem informing the line card that there is an RF channel impairment, the line card checks for the number of good RF channels and:
-
Moves the cable modem to narrowband mode if there is only one available RF channel.
-
Moves the cable modem to wideband mode if the cable modem reports all RF channels are in good state.
-
Moves the cable modem to an RBG if there are two or more good RF channels, with at least one RF channel impaired, and if the Downstream Resiliency Bonding Group feature is enabled.
When the Cisco CMTS receives a message from the line card to move a cable modem to an RBG, the Cisco CMTS attempts to find an existing RBG or creates an RBG that satisfies the impairment.
Note | If two or more RBGs are reserved for the same wideband controller, the Cisco CMTS creates one RBG for each cable modem. |
Note | The Cisco CMTS creates more than one RBG from a parent WB interface if the user has set aside more than one WB interface as the RBG and the RF bandwidth does not exceed 100%. |
If a matching RBG is not found or cannot be created, the Cisco CMTS looks for an RBG with a subset of the required RF channels and if available, the cable modem is assigned to such an RBG.
However, if no such RBG exists, the Cisco CMTS instructs the line card to move the cable modem to NB mode.
How to Configure Downstream Resiliency Bonding Group
This section contains the following:
Enabling Downstream Resiliency Bonding Group
Note | The result of using the cable rf-change-trigger command with the cable resiliency ds-bonding command is different from using only the cable rf-change-trigger command. For more information, see Downstream Resiliency Narrowband Mode Versus Resiliency Bonding Group. |
Reserving a Resiliency Bonding Group for a Line Card
This section describes reserving a bonding group or a wideband interface for a line card per controller.
When you reserve a resiliency bonding group using the cable ds-resiliency command, the existing bundle and RF channel configurations on the wideband interface will be removed automatically. Other configurations like admission control, should be removed manually.
After downstream resiliency bonding group is configured, avoid other manual configurations.
Verifying Downstream Resiliency Bonding Group Configuration
This section contains the following:
- Verifying the Downstream Resiliency Bonding Group
- Verifying a Reserved Resiliency Bonding Group
- Downstream Resiliency Narrowband Mode Versus Resiliency Bonding Group
Verifying the Downstream Resiliency Bonding Group
To verify if the Downstream Resiliency Bonding Group feature is enabled, use the show cable modem resiliency command as shown in the following example:
Router# show cable modem resiliency Orig BG Curr BG I/F MAC Address ID I/F RFs ID I/F RFs ------- -------------- ---------------------- ---------------------- C7/0/0 0025.2eaf.843e 897 Wi7/0/0:0 4 898 Wi7/0/0:1 3 C7/0/0 0025.2eaf.8356 897 Wi7/0/0:0 4 899 Wi7/0/0:2 3 C7/0/0 0015.d176.5199 897 Wi7/0/0:0 4 720 In7/0/0:0
The Current BG I/F field indicates whether Downstream Resiliency Bonding Group feature is enabled and if the cable modems are assigned to a WB interface.
Verifying a Reserved Resiliency Bonding Group
To verify if a BG is reserved for a line card, use the show cable resiliency command as shown in the following example:
Router# show cable resiliency BG Resil BG RF Resil BG I/F ID State Count Time Ctrl Num ------------- ---- -------------- ----- --------------- ---------- Wi1/0/0:10 10 Free Wi1/0/0:20 20 Free Wi7/0/0:1 1 Assigned 3 Nov 3 09:55:49 0 0 1 2 Wi7/0/0:2 2 Assigned 3 Nov 3 09:57:09 0 0 1 3
Downstream Resiliency Narrowband Mode Versus Resiliency Bonding Group
This section provides the sample outputs when using the cable rf-change-trigger command with the cable resiliency ds-bonding command and using only the cable rf-change-trigger command.
Effect on |
Using only cable rf-change-trigger command (Downstream Resiliency NB Mode) |
Using cable rf-change-trigger command with cable resiliency ds-bonding (Downstream Resiliency Bonding Group) |
||
---|---|---|---|---|
|
Below Threshold |
Above Threshold |
Below Threshold |
Above Threshold |
Primary Service Flow |
Moves to the primary channel. |
Remains on the original bonding group while the impaired downstream channels are not used and are reported as DOWN. |
Moves to dynamic bonding group. |
Remains on the original bonding group while the impaired downstream channels are not used and are reported as DOWN. |
Secondary Service Flows |
Remain on the original WB interface. |
Remains on the original bonding group while the impaired downstream channels are not used and are reported as DOWN. |
Remains on the original bonding group. |
Remains on the original bonding group while the impaired downstream channels are not used and are reported as DOWN. |
The following is a sample output for a cable modem when the cable rf-change-trigger command is used with the cable resiliency ds-bonding command and the number of cable modems observing an RF channel impairment is below the resiliency threshold:
Router# show cable modem D MAC Address IP Address I/F MAC Prim RxPwr Timing Num I State Sid (dBmv) Offset CPE P 0023.be83.1c9e 10.1.11.46 C5/0/0/UB w-online 922 -0.50 1055 0 N 0023.be83.1caa 10.1.11.28 C5/0/0/UB w-online 923 0.00 1043 0 N 0025.2ecf.f19c 10.1.11.53 C5/0/0/UB w-online 925 0.00 1057 0 N 0022.3a30.9fc0 10.1.11.47 C5/0/0/UB w-online 926 0.00 1055 0 N 001a.c3ff.e3d4 10.1.11.39 C5/0/0/UB p-online 927 0.00 1307 0 N 0023.be83.1c9a 10.1.11.61 C5/0/0/UB w-online 928 0.00 1057 0 N 0022.3a30.9fbc 10.1.11.60 C5/0/0/UB p-online 929 -0.50 1055 0 N 0023.be83.1c8c 10.1.11.38 C5/0/0/UB w-online 930 0.00 1061 0 N 001e.6bfb.1964 10.1.11.63 C5/0/0/UB p-online 931 0.50 1305 0 N 0025.2ecf.f196 10.1.11.29 C5/0/0/UB w-online 932 0.00 1057 0 N 0025.2ecf.f04e 10.1.11.54 C5/0/0/UB w-online 933 0.00 1054 0 N 0022.3a30.9fc8 10.1.11.43 C5/0/0/UB w-online 934 0.00 1056 0 N 0025.2ecf.f190 10.1.11.55 C5/0/0/UB w-online 935 0.00 1059 0 N 0022.3a30.9fd0 10.1.11.52 C5/0/0/UB p-online 936 0.00 1057 0 N 0022.ce97.8268 10.1.11.31 C5/0/0/UB w-online 937 -0.50 1056 0 N 0022.ce97.8281 10.1.11.25 C5/0/0/UB w-online 938 0.00 1058 0 N 001a.c3ff.e4ce 10.1.11.44 C5/0/0/UB w-online 940 -0.50 1304 0 N 0022.ce9c.839e 10.1.11.32 C5/0/0/UB w-online 941 -0.50 1305 0 N 0022.cea3.e768 10.1.11.41 C5/0/0/UB w-online 942 -1.00 1305 0 N 0022.ce9c.8398 10.1.11.33 C5/0/0/UB w-online 943 0.00 1306 0 N 001a.c3ff.e50a 10.1.11.59 C5/0/0/UB w-online 944 0.00 1304 0 N 001a.c3ff.e3f8 10.1.11.57 C5/0/0/UB w-online 945 -1.00 1306 0 N 001e.6bfb.1a14 10.1.11.37 C5/0/0/UB w-online 946 0.00 1305 0 N
Note | p-online indicates that cable modem has reported NP RF failure and it is in downstream partial service mode. |
Router# show cable resiliency BG Resil BG RF Resil BG I/F ID State Count Time Ctrl Num ------------- ---- -------------- ----- --------------- ---------- Wi5/0/0:2 2 Assigned 1 Mar 30 14:46:43 0 0 1 2 Wi5/0/0:3 3 Assigned 1 Mar 30 14:46:43 0 0 1 2 1 0 1 2 3 Wi5/0/0:4 4 Free 0 Wi5/0/0:5 5 Free 0 Router# show cable modem resiliency Orig BG Curr BG I/F MAC Address ID I/F RFs ID I/F RFs ------- -------------- ---------------------- ---------------------- C5/0/0 001a.c3ff.e3d4 258 Wi5/0/0:1 4 259 Wi5/0/0:2 3 <- Dynamic Bonding Group C5/0/0 0022.3a30.9fbc 257 Wi5/0/0:0 8 260 Wi5/0/0:3 7 <- Dynamic Bonding Group C5/0/0 001e.6bfb.1964 258 Wi5/0/0:1 4 259 Wi5/0/0:2 3 <- Dynamic Bonding Group C5/0/0 0022.3a30.9fd0 257 Wi5/0/0:0 8 260 Wi5/0/0:3 7 <- Dynamic Bonding Group
The following is a sample output for a cable modem under the following conditions:
-
cable rf-change-trigger command is used with the cable resiliency ds-bonding command
-
Number of cable modems observing an RF channel impairment is below the resiliency threshold
-
There is no available WB interface for the resiliency bonding group:
Router# show cable modem 0025.2ecf.f196 service-flow version SUMMARY: MAC Address IP Address Host MAC Prim Num Primary DS Interface State Sid CPE Downstream RfId 0025.2ecf.f196 10.1.11.29 C5/0/0/UB p-online 932 0 In5/0/0:0 240 Sfid Dir Curr Sid Sched Prio MaxSusRate MaxBrst MinRsvRate Throughput State Type 1867 US act 932 BE 0 0 10000 0 294 1868 DS act N/A N/A 0 0 3044 0 154 Router# show cable resiliency BG Resil BG RF Resil BG I/F ID State Count Time Ctrl Num ------------- ---- -------------- ----- --------------- ---------- Wi5/0/0:2 2 Assigned 6 Mar 30 15:57:09 0 0 1 2 3 1 0 2 3 Wi5/0/0:3 3 Assigned 8 Mar 30 15:53:58 0 0 1 2 1 1 2 3 Wi5/0/0:4 4 Assigned 2 Mar 30 15:53:58 0 0 1 2 3 1 1 2 3 Wi5/0/0:5 5 Assigned 2 Mar 30 15:58:35 0 0 1 2 3 1 0 1 3 Router# show cable modem resiliency Orig BG Curr BG I/F MAC Address ID I/F RFs ID I/F RFs ------- -------------- ---------------------- ---------------------- C5/0/0 0025.2ecf.f19c 257 Wi5/0/0:0 8 259 Wi5/0/0:2 7 C5/0/0 0025.2ecf.f196 257 Wi5/0/0:0 8 240 In5/0/0:0 <-- move NB for no available WB interface C5/0/0 0025.2ecf.f04e 257 Wi5/0/0:0 8 262 Wi5/0/0:5 7 C5/0/0 0022.3a30.9fbc 257 Wi5/0/0:0 8 260 Wi5/0/0:3 6 C5/0/0 0022.3a30.9fd0 257 Wi5/0/0:0 8 261 Wi5/0/0:4 7
Effect on |
Using only cable rf-change-trigger secondary command (Downstream Resiliency NB Mode) |
Using cable rf-change-trigger secondary command with cable resiliency ds-bonding (Downstream Resiliency Bonding Group) |
||
---|---|---|---|---|
|
Below Threshold |
Above Threshold |
Below Threshold |
Above Threshold |
Primary Service Flow |
Moves all service flows to the primary channel. |
Remains on the original bonding group while the impaired downstream channels are not used and are reported as DOWN. |
Moves all service flows to a dynamic bonding group. |
Remains on the original bonding group while the impaired downstream channels are not used and are reported as DOWN. |
Secondary Service Flows |
The following is a sample output for a cable modem when the cable rf-change-trigger secondary command is used with the cable resiliency ds-bonding command and the number of cable modems observing an RF channel impairment is below the resiliency threshold:
Router# show cable modem 0025.2ecf.f196 service-flow SUMMARY: MAC Address IP Address Host MAC Prim Num Primary DS Interface State Sid CPE Downstream RfId 0025.2ecf.f196 10.1.11.29 C5/0/0/UB p-online 955 0 In5/0/0:0 240 Sfid Dir Curr Sid Sched Prio MaxSusRate MaxBrst MinRsvRate Throughput State Type 1913 US act 955 BE 0 10000000 10000 0 425 1915 US act 956 RTPS 7 0 3044 100000 0 1916 US act 957 BE 0 0 3044 50000 0 1917 US act 958 BE 4 0 3044 0 0 1914 DS act N/A N/A 0 100000000 20000 0 0 <-- Primary Service-Flow 1918 DS act N/A N/A 0 0 3044 0 0 <-- Secondary Service-Flow 1919 DS act N/A N/A 0 0 3044 0 0 <-- Secondary Service-Flow 1920 DS act N/A N/A 4 4500000 3044 0 0 <-- Secondary Service-Flow UPSTREAM SERVICE FLOW DETAIL: SFID SID Requests Polls Grants Delayed Dropped Packets Grants Grants 1913 955 83 0 83 0 0 92 1915 956 0 0 0 0 0 0 1916 957 0 0 0 0 0 0 1917 958 0 0 0 0 0 0 DOWNSTREAM SERVICE FLOW DETAIL: SFID RP_SFID QID Flg Policer Scheduler FrwdIF Xmits Drops Xmits Drops 1914 33210 131555 90 0 6 0 Wi5/0/0:3 <-- Dynamic Bonding Group 1918 33211 131556 0 0 0 0 Wi5/0/0:3 1919 33212 131557 0 0 0 0 Wi5/0/0:3 1920 33213 131558 0 0 0 0 Wi5/0/0:3
Troubleshooting the Downstream Resiliency Bonding Group Configuration
Use the following commands to get information on the WB interface, number of CMs in an impaired state, resiliency bonding groups, their associated bonding groups, available RF channels, and the number of CMS and service flows assigned to them:
Configuration Examples for the Downstream Resiliency Bonding Group
The following is an example of the configuration of the Downstream Resiliency Bonding Group feature:
cable rf-change-trigger count 10 secondary cable resiliency ds-bonding ! controller Upstream-Cable 9/0/1 us-channel 0 frequency 13200000 us-channel 0 channel-width 6400000 6400000 us-channel 0 power-level -1 us-channel 0 docsis-mode atdma us-channel 0 minislot-size 8 us-channel 0 modulation-profile 221 no us-channel 0 shutdown us-channel 1 frequency 19600000 us-channel 1 channel-width 6400000 6400000 us-channel 1 power-level -1 us-channel 1 docsis-mode atdma us-channel 1 minislot-size 8 us-channel 1 modulation-profile 221 no us-channel 1 shutdown us-channel 2 frequency 26000000 us-channel 2 channel-width 6400000 6400000 us-channel 2 power-level -1 us-channel 2 docsis-mode atdma us-channel 2 minislot-size 8 us-channel 2 modulation-profile 221 no us-channel 2 shutdown us-channel 3 frequency 32400000 us-channel 3 channel-width 6400000 6400000 us-channel 3 power-level -1 us-channel 3 docsis-mode atdma us-channel 3 minislot-size 8 us-channel 3 modulation-profile 221 no us-channel 3 shutdown ! controller Integrated-Cable 9/0/1 max-carrier 128 base-channel-power 34 rf-chan 0 type DOCSIS frequency 381000000 rf-output NORMAL power-adjust -2 docsis-channel-id 1 qam-profile 1 rf-chan 1 3 type DOCSIS frequency 387000000 rf-output NORMAL power-adjust 0 docsis-channel-id 2 qam-profile 1 rf-chan 32 35 type DOCSIS frequency 477000000 rf-output NORMAL power-adjust 0 docsis-channel-id 33 qam-profile 1 rf-chan 64 67 type DOCSIS frequency 501000000 rf-output NORMAL power-adjust 0 docsis-channel-id 65 qam-profile 1 rf-chan 96 99 type DOCSIS frequency 669000000 rf-output NORMAL power-adjust 0 docsis-channel-id 97 qam-profile 1 ! interface Cable9/0/1 downstream Integrated-Cable 9/0/1 rf-channel 0-3 downstream Integrated-Cable 9/0/1 rf-channel 32-35 upstream 0 Upstream-Cable 9/0/1 us-channel 0 upstream 1 Upstream-Cable 9/0/1 us-channel 1 upstream 2 Upstream-Cable 9/0/1 us-channel 2 upstream 3 Upstream-Cable 9/0/1 us-channel 3 cable upstream bonding-group 1 upstream 0 upstream 1 upstream 2 attributes 80000000 cable upstream bonding-group 2 upstream 0 upstream 1 attributes 80000000 cable upstream bonding-group 3 upstream 1 upstream 2 attributes 80000000 cable upstream bonding-group 4 upstream 0 upstream 2 attributes 80000000 cable upstream bonding-group 5 attributes 80000000 cable bundle 1 no cable mtc-mode cable privacy accept-self-signed-certificate end ! interface Integrated-Cable9/0/1:0 cable bundle 1 cable rf-bandwidth-percent 65 ! interface Wideband-Cable9/0/1:0 cable bundle 1 cable privacy accept-self-signed-certificate cable rf-channels channel-list 0-3 bandwidth-percent 20 ! interface Integrated-Cable9/0/1:1 cable bundle 1 cable rf-bandwidth-percent 65 ! interface Wideband-Cable9/0/1:1 cable bundle 1 cable privacy accept-self-signed-certificate cable rf-channels channel-list 32-35 bandwidth-percent 20 ! ! interface Wideband-Cable9/0/1:60 cable ds-resiliency ! interface Wideband-Cable9/0/1:61 cable ds-resiliency ! interface Wideband-Cable9/0/1:62 cable ds-resiliency !
The following is a sample output for the show cable modem command to display impaired cable modems below the resiliency threshold value:
Router# show cable modem MAC Address IP Address I/F MAC Prim RxPwr Timing Num I State Sid (dBmv) Offset CPE P e448.c70c.96d5 80.17.150.6 C9/0/1/U2 p-online 1 0.00 1784 0 N e448.c70c.96f3 80.17.150.14 C9/0/1/U1 w-online 2 -1.00 1797 0 N 68ee.9633.0699 80.17.150.31 C9/0/1/U0 w-online 3 -1.00 2088 1 N e448.c70c.96e7 80.17.150.29 C9/0/1/U3 p-online 4 -0.50 1785 0 N e448.c70c.982b 80.17.150.18 C9/0/1/U2 w-online 5 0.00 1780 0 N e448.c70c.9804 80.17.150.13 C9/0/1/U3 w-online 6 -0.50 1788 0 N e448.c70c.9819 80.17.150.30 C9/0/1/U0 w-online 7 -1.00 1782 0 N e448.c70c.980d 80.17.150.17 C9/0/1/U0 w-online 8 -1.00 1787 0 N
Note | p-online indicates that the cable modem has reported NP RF failure and it is in downstream partial service mode. |
The following is a sample output when RBGs are created:
Router# show cable resiliency BG Resil BG RF Resil BG I/F ID State Count Time Ctrl Num ------------- ----- -------------- ----- --------------- ---------- Wi9/0/1:60 28989 Assigned 1 Jan 9 07:35:08 1 0 1 2 Wi9/0/1:61 28990 Assigned 1 Jan 9 07:36:54 1 0 1 3 Wi9/0/1:62 28991 Free 0
The following is a sample output when cable modems service flows are assigned to RBGs:
Router# show cable modem resiliency Orig BG Curr BG I/F MAC Address ID I/F RFs ID I/F RFs ------- -------------- ----------------------- ----------------------- C9/0/1 e448.c70c.96d5 28929 Wi9/0/1:0 4 28989 Wi9/0/1:60 3 C9/0/1 e448.c70c.96e7 28929 Wi9/0/1:0 4 28990 Wi9/0/1:61 3
The following is a sample output of the show cable modem command when the impaired cable modems have recovered:
Router# show cable modem MAC Address IP Address I/F MAC Prim RxPwr Timing Num I State Sid (dBmv) Offset CPE P e448.c70c.96d5 80.17.150.6 C9/0/1/U2 w-online 1 0.00 1784 0 N e448.c70c.96f3 80.17.150.14 C9/0/1/U1 w-online 2 -1.00 1797 0 N 68ee.9633.0699 80.17.150.31 C9/0/1/U0 w-online 3 -1.00 2088 1 N e448.c70c.96e7 80.17.150.29 C9/0/1/U3 w-online 4 -0.50 1785 0 N e448.c70c.982b 80.17.150.18 C9/0/1/U2 w-online 5 0.00 1780 0 N e448.c70c.9804 80.17.150.13 C9/0/1/U3 w-online 6 -0.50 1788 0 N e448.c70c.9819 80.17.150.30 C9/0/1/U0 w-online 7 -1.00 1782 0 N e448.c70c.980d 80.17.150.17 C9/0/1/U0 w-online 8 -1.00 1787 0 N
The following is a sample output of the show cable resiliency command when the impaired cable modems have recovered:
Router# show cable resiliency BG Resil BG RF Resil BG I/F ID State Count Time Ctrl Num ------------- ----- -------------- ----- --------------- ---------- Wi9/0/1:60 28989 Free 1 Jan 9 07:35:08 Wi9/0/1:61 28990 Free 1 Jan 9 07:36:54 Wi9/0/1:62 28991 Free 0
Additional References
Related Documents
Related Topic |
Document Title |
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Cisco CMTS Command Reference |
http://www.cisco.com/c/en/us/td/docs/cable/cmts/cmd_ref/b_cmts_cable_cmd_ref.html |
Technical Assistance
Description |
Link |
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The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
Feature Information for Downstream Resiliency Bonding Group
Use Cisco Feature Navigator to find information about 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 http://tools.cisco.com/ITDIT/CFN/. An account on http://www.cisco.com/ is not required.
Note | The below 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. |
Feature Name |
Releases |
Feature Information |
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Downstream Resiliency Bonding Group |
Cisco IOS-XE Release 3.15.0S |
This feature was introduced on the Cisco cBR Series Converged Broadband Routers. |