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- PacketCable Implementation
- Cisco Prime Cable Provisioning 6.1.2 User Guide
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- Cisco Converged Broadband Routers Software Configuration Guide For DOCSIS
- Hardware Compatibility Matrix for the Cisco cBR Series Routers
- Cisco Small Business Managed Switch SRW208P – switch – managed – 8 ports
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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.
Cisco cBR-8 Supervisor :.
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Supports only embedded multimedia terminal adapter E-MTA clients. If a switchover occurs, existing voice calls continue, but when the user hangs up, PacketCable event messages are not generated because the Protect interface is not aware of the previous call states.
However, new voice calls can be made and proceed in the normal fashion. This section provides an overview and other information about PacketCable operations, the components of a PacketCable network, and how they interact with the other components of a DOCSIS cable networks.
PacketCable is a program initiative from Cablelabs and its associated vendors to establish a standard way of providing packet-based, real-time video and other multimedia traffic over hybrid fiber-coaxial HFC cable networks. This allows PacketCable to be an end-to-end solution for traffic that originates or terminates on a cable network, simplifying the task of providing multimedia services over an infrastructure composed of disparate networks and media types. It also provides an integrated approach to end-to-end call signaling, provisioning, quality of service QoS , security, billing, and network management.
The PacketCable Emergency cable interface line card prioritization feature enables cable interface line cards that are supporting an Emergency call to be given automatic priority over cable interface line cards supporting non-emergency voice calls, even in the case of HCCP switchover events.
This feature is enabled by default, and may not be disabled with manual configuration.
During HCCP switchover events, cable modems recover in the following sequence:. To view information about Emergency voice events and cable interface line card prioritization on the Cisco CMTS router, use the show hccp, show cable calls, and show hccp event-history commands in privileged EXEC mode.
The enhanced informational support for PacketCable Emergency calls on the Cisco CMTS router provides the following information and related history:. This feature is enabled and supported with the following configuration and show commands:. To set the call window in minutes during which the Cisco CMTS router maintains records of Emergency calls, use the cable high-priority-call-window command in global configuration mode.
To remove the call window configuration from the Cisco CMTS router, use the no form of this command:. A PacketCable network contains a number of components. Wherever possible, the PacketCable components and protocols build on existing protocols and infrastructures to simplify implementation and interoperability.
This prevents possible theft-of-service attacks and guarantees customers the services they are authorized to use. The PacketCable DQoS model uses a two-stage resource reservation process, in which resources are first reserved and then committed.
This allows a bidirectional reservation process that ensures that resources are available at both endpoints of the connection before actually placing the call. After the resources are authorized, the CMTS reserves the local resources while it negotiates with the remote end for the resources that are required at that end. Usage accounting and billing do not begin until the remote MTA picks up and the call is actually in progress. The DQoS model ensures that both endpoints of a call, as well as the backbone network, have reserved the same bandwidth, and that the bandwidth is reserved only while the call is in progress.
A gate is a logical entity created on the CMTS at each side of a connection that authorizes and establishes a particular DQoS traffic flow. The CMTS communicates with the gate controller to coordinate the creation of matching gates at each side of the connection.
Cisco Prime Cable Provisioning 6.1.2 User Guide
Gates are unidirectional, so separate gates are required for the downstream and upstream traffic flows. The same gate ID, however, is usually used for the downstream and upstream gates for a call. For a typical call, gates progress through the following stages to create a DQoS traffic flow:. DQoSLite is a modem centric solution without notion of gates, to validate and deliver residential voice services over IPv6 to reclaim IPv4 address space.
CMTS does not participate in resource reservation and authorization. Support for a wide range of multimedia services. The TAIDs must be unique and not incremented. This affects the uniqueness of the TAID. A TAID can be reused when the sender finishes a transaction.
The uniqueness of TAID must be ensured to resolve the interoperability issue. A new TAID allocation algorithm is used to fulfill this requirement. It creates a TAID pool to replace the existing bit counter. A flag is assigned to each TAID in the pool to indicate its availability. If the TAID is available, it is allocated to the new service flow, else the request is rejected.
The dynamic service process keeps track of the timer. The TAID pool is allocated and initialized at the process initialization. All timers associated with the TAIDs are added as leaf timers to the process' parent timer. Additionally, the error codes returned from CMTS or its proxy are enhanced to include more specific information about gate operation failures.
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To enable this feature, use the packetcable gate send-subscriberID command in global configuration mode. The PacketCable feature offers the following benefits to service providers and their customers:.
PacketCable allows cable operators the ability to offer multimedia, real-time services, in addition to data connectivity, across their entire network. These services could include basic telephony with lifeline support, as well as telephony that offers competitive extended calling services. Operators can deploy new services while heavily leveraging their existing network infrastructures. The widespread use of IP as the standard transport mechanism for data networks today is enabling many advanced Internet applications such as multimedia e-mail, real-time chat, streaming media including music and video , and videoconferencing.
The PacketCable initiative provides the network architecture for a cable operator to deliver these services quickly and economically. PacketCable provides a standardized, efficient method to provision IP services for individual subscribers, because PacketCable specifications define a uniform, open, and interoperable network.
Cable operators are assured of standardized provisioning and the associated lower costs of deployment. Customer premises equipment CPE devices account for a major portion of the capital expense in deploying a VoIP solution at a cable plant.
The PacketCable specifications ensure that vendors will build MTA clients that support the voice and other services that cable operators plan to deploy.
Interoperability with the other components of the PacketCable network is also guaranteed because of the standards-based approach to the specifications. Any PacketCable-certified component will be able to interoperate within a network that conforms to the PacketCable standards.
The comprehensive, standards-based PacketCable specifications are designed to create a network that is as secure as the public switched telephone network PSTN.
Cisco Converged Broadband Routers Software Configuration Guide For DOCSIS
The PacketCable architecture was designed to accommodate the Communications Assistance for Law Enforcement Act CALEA , which requires telecommunications carriers to assist law-enforcement agencies in conducting court-ordered electronic surveillance. PacketCable networks will be able to provide the two types of information that a carrier must provide, depending on the type of court order:.
This section contains the following tasks to configure the PacketCable feature. Each task is required unless otherwise identified as optional.
Hardware Compatibility Matrix for the Cisco cBR Series Routers
This is a required procedure. To configure the different parameters that affect PacketCable operations, use the following commands beginning in user EXEC mode. All of these procedures are optional, because each parameter is set to a default that is appropriate for typical PacketCable operations. Enables privileged EXEC mode. Enter your password if prompted. By default, when PacketCable operations are enabled using the packetcable command, cable modems must follow the PacketCable protocol when requesting Unsolicited Grant Service UGS service flows.
This is an optional procedure. Use the show packetcable global command to display whether non-PacketCable UGS service flows have been enabled.
Enables the use of gate control subscriber identification information. Enables the authentication, authorization, and accounting AAA access control model. The value of group-name is a unique, arbitrary string that identifies this group. The group-name parameter should be the same name specified in Step 4.
Cisco Small Business Managed Switch SRW208P – switch – managed – 8 ports
Use the same values for hostname or ip-address as for one of the servers specified in Step 5. If you also specified the auth-port or acct-port values in Step 5 , you must also specify those here, as well.
When this timeout setting expires, it terminates the Telnet session and clears supporting resources on the Cisco CMTS router. This section provides a typical configuration for a Cisco CMTS router that has been configured for PacketCable operations, using default parameters. To verify and maintain information about PacketCable operations, use one or more of the following commands:.
To verify information about one or more gates in the gate database, use the show packetcable gate command as shown in the following example:. To verify information about one or more PacketCable gates associated with IPv6 subscriber IDs in the gate database, use the show packetcable gate ipv6 command as shown in the following example:. To verify information about one or more PacketCable gates associated with IPv4 subscriber IDs in the gate database, use the show packetcable gate dqos command as shown in the following example:.
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To verify the total number of gates that the Cisco CMTS router has moved to the Committed state since the router was last reset, or since the counter was last cleared, use the show packetcable gate counter commit command as shown in the following example:. This section provides a few examples to illustrate how you can use the show cable calls and show cable modem calls commands to verify different scenarios associated with Emergency calls.
The following example displays information that is available when making a voice call from the same MTA to another MTA on the same interface:. The following example displays information that is available when a voice call from the same MTA to another MTA on the same interface ends:.
The following examples display the show cable modem calls command output on the Cisco CMTS router over a period of time, with changing call status information. The call information disappears when a call ends.
The following network components are required to support the PCMM feature:. Figure below provides an architectural overview of the PCMM functionality:. PacketCable Multimedia is a service delivery framework that leverages and uses as much of existing PacketCable 1. The key enhancements that the PCMM provides are:. A PacketCable 1. PacketCable 1. PCMM gates maintain service flow creation, modification and deletion functions to provide for network-based QoS.
This message contains QoS, service flow, and billing information for this subscriber.