[Cisco FAQ] - What is DOCSIS 3.0 Upstream Channel Bonding?

describe what it does.

DOCSIS 3.0 required that CM must have 4 or more upstream channel transmitters. This translates into the
possibility of 100mbps+ upstream rate…
Removed DOCSIS 2.0/1.x single request-grant cycle bottleneck.
Bonded Flows allow multiple outstanding BW-REQ.
BW can be requested on any of the bonded upstream channels
Requests can be granted on any of the bonded upstream channels
Reduced upstream latency (TCP ACK) also increases DS throughput. [TCP application]
Bonds multiple, physical upstream transmit channels to form a larger, logical upstream channel.

Similar Messages

[Cisco FAQ] - What is Wideband Downstream DOCSIS?

What does this specifically do?

Bonding of 2 or more QAM channels into Wideband channel
Uses DOCSIS 3.0 Packet Bonding to encapsulate MPEG-TS to Ethernet for transmission to EQAM
Uses existing Edge QAM (EQAM) devices deployed for VOD services
Enables ~300 Mbps downstream in current implementation
8 x 6 MHz channels @ 256 QAM
Future implementations may offer 600 Mps+ downstream
16 x 6 MHz channels @ 256 QAM

[Cisco FAQ] - What is Wideband DOCSIS?

I am not too sure how this works?

Bonding of 2 or more QAM DS channels into Wideband Downstream channel
Provides high bandwidth for DS applications
Enables up to ~300 Mbps downstream throughput
8 x 6 MHz channels @ 256 QAM
50-100 Mbps verified for Pre-EFT
4 X 6 MHz channels @ 64 QAM

[Cisco FAQ] - What is the USRM equivalent of the releaseOldSessions script that runs on the DNCS?

HOw do i tear down VOD Sessions that are older than 4 hours

NOTE: When the VOD Session Manager is a USRM, Cisco refers to this USRM as a VSM.
Here is an explanation of how the VOD Session Manager (VSM) initiates a release of VOD sessions that are older than 4 hours (configurable). The algorithm described below is similar to the releaseOldSessions script on the DNCS that many of our customers are familiar with. Both release VOD sessions that are older than 4 hours old. Also, the VSM has a retry and session audit mechanism built into its algorithm that is absent in the releaseOldSessions script on the DNCS. The main difference is that this functionality is built into the VSM, but the releaseOldSessions script must either be run manually on the DNCS or put into the DNCS crontab. The VSM will make the decision to release a VOD session base on age, typically configured for 4 hours, and then the VSM will send up to 3 teardown requests to the Edge Resource Manager (ERM). NOTE: Both the VSM and ERM are Linux servers running Cisco USRM software.
The “releaseOldSessions” algorithm is configured on the VSM in the Web UI under Applications.VodSm.Configuration as shown in the screen shot below:
Applications.VodSm.Configuration.SessionTimeout = 14,400 seconds (default, configurable)
ReleaseRetryCount = 3 (default, not configurable)
ALGORITHM: The VSM, being the VOD Session Manager, will send a session release request to the appropriate Edge Resource Manager (ERM) based on the configured “SessionTimeout”. By default this value is 14,400 seconds (4 hours, configurable). When the age of a VOD session reaches the SessionTimeout, the VSM will locate the appropriate ERM and send it a session release request for that session. If the ERM fails to acknowledge this release request, the VSM will retry the session release for the number of times configured in ReleaseRetryCount, which is 3. NOTE: Cisco Development has chosen a value of 3 for this parameter (the ReleaseRetryCount is not configurable). If after the 3rd release retry, the VSM still does not have an acknowledgement of session teardown from the ERM, the VSM will initiate a session audit of that ERM as a final attempt to tear down the session.

[Cisco FAQ] - What are the SDV messages logged in the EventLog on the USRM?

Can you please give me the SDV messages on this EventLog?

SDV Messages in the EventLog on the USRM
Reference: Time Warner Cable Switched Digital Video Channel Change Message Interface Specification (TWC-SDV-CCMIS).
ABREVIATIONS:
Conf – Confirmation
Init – Initialization
MPN – MPEG Program Number
Rx – Message received by the USRM
SDB – Switched Digital Broadcast, aka Switched Digital Video (SDV). SDB is part of the message name in the TWC CCMIS spec.
SDV – Switched Digital Video
Sm – Session Manager
Sel – Select
SGID – Service Group ID
SID – Source ID
STB – Set-Top Box
Tx – Message sent by the USRM
TWC Channel Change Message Interface Specification (TWC-SDV-CCMIS)
Message Name in CCMIS
(appears in EventLog as)
Description / Example from the USRM EventLog
SDBInitRequest (SdvSmRxInitReq)
Sent by SDV Client to report client initialization data to the server, i.e., to register with the Server.
2012/02/20 00:08:01.831 SdvSmRxInitReq,STB=10.142.85.250,TID=0x1,SesID=38c85cdbd4da/0,SGID=7998,Ver=0
SDBInitConfirm (SdvSmInitConf )
Sent by the SDV Server to configure the Client.
2012/02/20 00:08:01.831 SdvSmInitConf,STB=10.142.85.250,TID=0x1,SesID=38c85cdbd4da/0,RC=x0
SDBProgramSelectRequest
(SdvSmRxSelReq)
Sent from a User to the SDV Server to request that a broadcast program be provided.
2012/02/21 00:00:00.206 SdvSmRxSelReq,STB=10.120.21.0,SesId=f45fd494bcaa/0,TID=0xc2,SGID=7964,Tuner=0,SID=10097,TunerUse=0x1
SDBProgramSelectConfirm
(SdvSmTxSelConf)
Sent from the SDV Server to a User in response to the SDBProgramSelectRequest.
SdvSmTxSelConf,STB=10.120.21.0,TID=0xc2,SesId=f45fd494bcaa/0,RC=OK,MPN=10097,Freq=69300
0000,Mod=16,Tsid=51247,SGID=7964
ABREVIATIONS:
Bw – Bandwitdh
Cmd – Command
Conf – Confirmation
Req – Request
RID – Resource ID (e.g., management IP address of an edge QAM)
Rm – ResourceManager
SGID – Service Group ID
SID – Source ID
STB – Set-Top Box
Sel – Select
SDV Session Setup on the USRM
/opt/usrm/linux-tools/usrmcctail
Displays Channel changes and QAM operations, combining all operations related to a single transaction together.
SDBProgramSelectRequest
(SelReq)
SDBProgramSelectConfirm
(SelConf)
ResourceManagerBandwidth Request
(RmBwReq)
ResourceManagerCreateSession
(RmCreateSession)
ResourceManagerCommandSuccess
(RmCmdSuccess)
[root@USRM01 linux-tools]# usrmcctail
++++++++++ 001ac332e0ea/0x766 ++++++++++
SelReq         2009/12/02 03:01:31.551 STB=5.134.14.212 Tuner=0 SGID=34110 SID=1350
SelConf         2009/12/02 03:01:31.551 RC=OK MPN=1014 Freq=567000000
++++++++++ 0002dea51bfc/0x1a5 ++++++++++
SelReq         2009/12/02 03:01:32.762 STB=5.173.11.94 Tuner=0 SGID=34007 SID=1519
RmBwReq         2009/12/02 03:01:32.764 BW=3750000 GDA=232.129.2.95
RmCreateSession 2009/12/02 03:01:32.765 SesId=0019b9f7e096/6266778 RID=172.30.104.6 chan0=10 EdgeIn=172.30.104.134 GDA=232.129.2.95
SelConf         2009/12/02 03:01:32.765 RC=OK MPN=1058 Freq=597000000
RmCmdSuccess   2009/12/02 03:01:32.776 Cmd=CreateSession RID=172.30.104.6
++++++++++ 001ac332e0ea/0x767 ++++++++++
SelReq         2009/12/02 03:01:33.089 STB=5.134.14.212 Tuner=0 SGID=34110 SID=1333
RmBwReq         2009/12/02 03:01:33.091 BW=15000000 GDA=232.129.2.124
RmCreateSession 2009/12/02 03:01:33.092 SesId=0019b9f7e096/6266779 RID=172.30.92.9 chan0=6 EdgeIn=172.30.93.50 GDA=232.129.2.124
SelConf         2009/12/02 03:01:33.092 RC=OK MPN=1066 Freq=597000000
RmCmdSuccess   2009/12/02 03:01:33.116 Cmd=CreateSession RID=172.30.92.9
ABREVIATIONS:
Cmd – Command
RID – Resource ID (QAM management IP address)
Rm – ResourceManager
RPC Error Codes – USRM Resource Manager
RPC Error Description – from Generic QAM Interface (GQI) Specification
RPC Error Code
GQI_NO_ERROR
0x90020000
GQI_ERROR_RPC_OUT_OF_MEMORY
0x90020001
GQI_ERROR_RPC_HARDWARE_FAILURE
0x90020002
GQI_ERROR_RPC_SESSION_NOT_FOUND
0x90020003
GQI_ERROR_RPC_MISSING_MSK
0x90020004
GQI_ERROR_RPC_SESSION_ALREADY_EXISTS
0x90020005
GQI_ERROR_RPC_INSUFFICIENT_MEMORY
0x90020006
GQI_ERROR_RPC_INSUFFICIENT_CAPACITY
0x90020007
GQI_ERROR_RPC_PROVISION_FAILURE
0x90020008
GQI_ERROR_RPC_PROGRAM_NUMBER_CONFLICT
0x90020009
GQI_ERROR_RPC_BANDWIDTH_UNAVAILABLE
0x9002000A
GQI_ERROR_RPC_SAME_GIGAIP
0x9002000B
GQI_ERROR_RPC_GIGAIP_INVALID
0x9002000C
GQI_ERROR_RPC_GIGAIP_FAILURE
0x9002000D
GQI_ERROR_RPC_GROUP_SDB_SESSION_FAILURE
0x9002000E
GQI_ERROR_RPC_INSUFFICIENT_OUTPUT_CAPACITY
0x9002000F
GQI_ERROR_RPC_ROUTE_CONFLICT_OUTPUT
0x90020010
GQI_ERROR_RPC_ROUTE_CONFLICT_INPUT
0x90020011
GQI_ERROR_RPC_ROUTE_NOT_FOUND
0x90020012
GQI_ERROR_RPC_ROUTE_ALREADY_EXISTS
0x90020013
GQI_ERROR_RPC_INVALID_MULTICAST_ADDRESS
0x90020014
GQI_ERROR_RPC_INVALID_SOURCE_ADDRESS
0x90020015
GQI_ERROR_RPC_STAT_MUX_GROUP_DEJITTER_FAILURE 0x90020016
0x90020016
GQI_ERROR_RPC_GIGE_TYPE_CONFLICT
0x90020017
Example
2010/06/08 14:56:08.097 RmCmdFail,Cmd=CreateSession,RID=10.78.193.104,Status=0x9002000a,SesId=0015c5603cd0/20587682,MPN=1028,BW=3750000,GDA=232.181.0.71

[Cisco FAQ] - What is a Wideband Downstream Channel?

explain its purpose.

Consists of one or more [RF] QAM channels.
Uniquely identified by MPEG PID field (2-bytes)
Information is conveyed to WCM by WDCD (Wideband Downstream Channel Descriptor)
WDCD is transmitted every 2 seconds
WDCD is transmitted on all bundled NB channels associated (in the WB-NB association table) with the WB channel
WCM must re-register if 3consecutive WDCD are missed

Cisco 7609 router received higher traffic than upstream provider router is sending

Hi all,
I have a Cisco 7609 router that connects to our upstream provider router using 3rd party DWDM Fiber backhaul provider.
The upstream provider router is a Juniper router that had capped our port speed to 1.1Gbps, the backhaul provider didn't capped our port speed and the maximum speed is 2Gbps since it's a 2x1Gbps port channel interface.
I have noticed that our 7609 router able to receive traffic that exceeds 1.1Gbps, and the highest traffic able to received is 1.3Gbps and more.
I have crossed checked the MRTG graph provided by our upstream provider as well as our PRTG graph and indeed we are receiving higher bandwidth than our upstream provider is sending.
I'd like to know if anyone know how it is possible to receive traffic that is higher than what the neighbor router is sending?
Regards

Hi at all,
We found a solution for this Problem !!
We always and always got this error:
%PQUICC-1-LOSTCARR: Unit 0, lost carrier. Transceiver problem?
The problem was the cable! The following pin-out is required:
                                        1 ----- 1
                                        2 ----- 2
                                        3 ----- 6
                                        4 ----- 5
                                        5 ----- 4
                                        6 ----- 3
                                        7 ----- 7
                                        8 ----- 8
We used this and the fault has disappeared!!
The only problem that still exists:
After the first connection the router must be rebooted because otherwise no more additional session is established.
Thanks for all answers.
Regards,
Mario

Modem recommendation. What brand DOCSIS 3.0 wireless modem (or superior) do you recommend?

Modem recommendation. What brand DOCSIS 3.0 wireless modem do you recommend? We would like to purchase a wireless modem to replace our Xfinity (Comcast) rented modem (which we currently use with an Airport Express unit). We have two MacBook Airs which we use in our 1,000 square foot condo. Thank you.

The following is a link to Comcast's approved list and it also has information that may help: http://mydeviceinfo.comcast.net

FAQ: What do I do if I have sign in or activation errors?

After installing the Photoshop CS6 beta, on first launch you are prompted to sign in with your Adobe ID. The Sign In button becomes unresponsive and you receive the error, "Please connect to the Internet and retry." It may be followed by "Either your computer is offline or the clock on your computer is set incorrectly, causing a connection error. An Internet connection is required. Please connect to the internet or adjust your clock and try again."
You can receive these errors if your computer has problems connecting to the internet, your firewall is blocking access, or if the host file on your computer has been modified.
Please go to the following link if you are having sign in or activation errors:
FAQ: What do I do if I have sign in or activation errors?

1. Launch System Information into its 'report' mode. (A quick way to do this is by holding down the option key while clicking on the Apple menu item, which causes "About this Mac" to change to that.)
2. From the list on the left, under "Software" click on "Applications." (If you don't see the Applications item, click on "Show more information" from the "File" menu.)
3. Wait a minute or so for the report to finish.
4. The last column in the report is "64-bit (Intel)." (You may need to scroll the window to the right to see it.) Click on that heading to sort the list alphabetically. Anything with a "no" is 32 bit.

FAQ: What are the system requirements for GroupPix?

FAQ: What are the system requirements for GroupPix?
Answer:
iOS: minimum iOS version is 6.0 GroupPix 1.x runs on iPhone 4, 4s, iPhone 5, or iPod touch (5th generation or later)
Android: minimum OS version 4.0 GroupPix 1.x is designed for Android phones
Message was edited by: Pattie F 11/7/13

For Mac:
http://support.apple.com/kb/SP663
Software:
Mac OS X version 10.6.8 or later (intel-based hardware)
400MB of available disk space
iTunes in the Cloud and iTunes Match availability may vary by country.
Hardware:
Mac computer with an Intel Core processor and 512MB of RAM
To play 720p HD video, an iTunes LP, or iTunes Extras, a 2.0GHz Intel Core 2 Duo or faster processor and 1GB of RAM is required.
To play 1080p HD video, a 2.4GHz Intel Core 2 Duo or faster processor and 2GB of RAM is required.
Screen resolution of 1024x768 or greater; 1280x800 or greater is required to play an iTunes LP or iTunes Extras
Broadband Internet connection to use the iTunes Store
Apple combo drive or SuperDrive to create audio, MP3, or back-up CDs; some non-Apple CD-RW recorders may also work
Apple SuperDrive to back up your library to DVDs; some non-Apple DVD-RW drives may also work.
You can run OS X 10.6.8 in an Intel-based MacBook w/ first model, in retail DVD.
But it won't work in a power-pc architecture Mac... see specifications:
http://store.apple.com/us/product/MC573Z/A/mac-os-x-106-snow-leopard
Hopefully this helps.
Good luck & happy computing!

DOCSIS 1.1 Upstream Speed config problem

Helllo,
I am trying to configure a UBR7246 with IOS 12.3(23)BC4 to run 16QAM upstream channels with the intention of providing up to 3.Mbps of upstream bandwidth to my users. Everything is working fine with 16QAM, minislot size of 4, and the "show cable modem QOS" command shows the upstream bandwidth and burst settings I have used in my modem config files. I am using max burst of 4000 and max concatenated burst of 4000.
The problem is that I still cannot get over 2.10Mbps on an upstream with only 1 test modem on it and under 20% utilization on my 45Mbps connection to the Internet. This is not an over-subscription issue or anything and I am wondering if I have something configured wrong.
Can anyone help me with how to get higher upstream bandwidth? I know the theoretical max for this profile is 7.6Mbps, and I only want to do 3.0Mbps. I know this is utilization depend, etc., but I only have one modem on the upstream.
I am only using cable upstream 3 for this and have edited out other parts of the config.
CMTS config items of interest:
interface Cable1/0
ip address x.x.x.x 255.255.255.192 secondary
ip address 10.203.240.1 255.255.248.0
ip access-group 110 in
ip access-group 110 out
no cable packet-cache
cable downstream channel-id 0
cable downstream annex B
cable downstream modulation 64qam
cable downstream interleave-depth 32
cable downstream frequency 117000000
no cable downstream rf-shutdown
cable downstream rf-power 50
cable upstream 3 frequency 28000000
cable upstream 3 docsis-mode tdma
cable upstream 3 channel-width 3200000
cable upstream 3 minislot-size 2
cable upstream 3 modulation-profile 9
no cable upstream 3 shutdown
cable arp filter request-send 3 2
cable arp filter reply-accept 3 2
cable source-verify dhcp
cable dhcp-giaddr policy
cable helper-address x.x.x.x
CMTS#show cable modem x.x.x.x qos
Sfid Dir Curr Sid   Sched Prio MaxSusRate MaxBrst   MinRsvRate Throughput
          State       Type
15831 US act   1083 BE     0    3000000     4000      0           2832
8810 US act   1080 BE     4    0           3044      0           0
15838 DS act   N/A   BE     0    10000000    1522      0           43
15850 DS act   N/A   BE     4    0           3044      0           0
show cable modulation-profile:
9    request 16qam 128 no   0x0 0x10 0x152 0   8     no   yes   384   16qam na
9    initial 16qam 256 no   0x5 0x22 0x152 0   48    no   yes   256   16qam na
9    station 16qam 256 no   0x5 0x22 0x152 0   48    no   yes   256   16qam na
9    short   16qam 144 no   0x5 0x4C 0x152 7   8     yes yes   368   16qam na
9    long    16qam 160 no   0x8 0xE7 0x152 0   8     yes yes   352   16qam na
Modem config:
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;}
        UsServiceFlow
                UsServiceFlowRef 1;
                QosParamSetType 7;
                MaxRateSustained 3000000;
                MaxTrafficBurst 4000;
                MaxConcatenatedBurst 4000;
                SchedulingType 2;
Thanks,
Bill

Thanks for the excellent responses! I did resolve the problem and ended up using a combination of CMTS configuration and modem changes. I did the following:
1. Increased the upstream "max burst" and "max concatenated burst". I tested with settings between 4000 and 16000. The higher setting provided the largest bandwidth increase, (in the modem config), when coupled with a higher mini-slot setting.
2. I used the "cable default phy burst" setting on the CMTS. made sure fragmentation was set at 2000, and turned off rate limiting on the upstream interface.
This is a small MSO with less than 5000 subscribers, and they are not prepared to move to DOCSIS 2 or 3. I was able to use "mixed mode" for the modulation profile and provided them with upstream speeds of up-to 3.0Mbps. (You can go to over 7Mbps if you want, but there are trade-offs in doing this.)
The new upstream speed tier is for a limited amout of customers and the MSO is quite happy now.
Let me know if anyone needs more info on this and I would be glad to provide it. I imagine most folks have moved on to DOCSIS 2 and 3, but a lot of small MSO's cannot afford to do this.
Cheers,
Bill

In repository what is the use of communication channel templates

Hi People
what is the use of communication channel templates in integration repository? and when we are using that please tell me the ASAP
Thanks & Regards
shekar

HI,
The communication channel template is for the documentation purpose that will give the information about the sender and receiver communication channels in IR. So No need to goto ID and check the related CCs each time for every scenario.
You can preconfigure a communication channel with a communication channel template. You can use the communication channel template as a template to define a communication channel at configuration time.
If you want to create multiple communication channels with some identical configuration data, you should use a communication channel template.
Thanks
Swarup

What is going on with CBS Channel 2 and 502

What is going on with CBS Channel 2 and 502? The audio went out mid-day. When it came back the picture is now a postage stamp? I called and was told Verizon is having trouble with CBS. It is now 9 hours latter and the picture is still a postge stamp? (5.1 AC3 digital )
Any fix soon?
Thanks

You didn't identify where you are. Channel 502 (WCBS in NY) was fine when I checked in VHO 5.
Also did you try a STB In-home-agent fix, set top box auto correct?

What is meaning Changing ALE Inbound Channel Registry...

what is meaning Changing ALE Inbound Channel Registry
can any body give sample scenario.
thx.
sudhakar

Hi,
When inbound IDocs are processed, a unique serial number is generated for each object channel (field CHNUM) and communication link. The ALE layer determines whether a given IDoc can now be posted or whether other IDocs have to be posted first. The serial number for each received IDoc is exactly one whole number lower. Any gaps in the sequence will mean that IDocs are missing, either because the transfer did not work, or because earlier IDocs were not posted successfully.
In this case the IDoc is assigned status 66 and must be posted again with the program RBDAPP01.
Objects are assigned to messages and channels by the application.
Transfer errors (IDoc sequence mixed up) and inbound posting errors (IDoc cannot be posted due to Customizing errors) no longer affect the sequential order, because serialization corrects these errors.
The inbound channel registry is maintained in transaction BD103. The serial counter number should be one less than the IDoc in the queue expected to be processed. PURCHASE ORDER message types come under this category of serialization of IDocs.
~ Bineah.

What is the need of communication channel?

what is the need of communication channel in xi?

Hi,
In communication Channel, we have the identification of a system in which we are going to login.
for sending the data or for receiving the data.
the details of authantication is also in the same.
This is required for making right connections with the system (3rd party or SAP) for data communication purpose.
Sandeep

[Cisco FAQ] - What is DOCSIS 3.0 Upstream Channel Bonding?

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