Table Of Contents

Frequently Asked Questions

Prime Cable Provisioning Configuration

How do I enable or disable Network Registrar extensions?

How do I enable tracing for Network Registrar extensions?

Why does the DPE server registration fails?

Why does RDU crash while updating the agent.conf?

Why are the components not been able to communicate?

Why does connection drop between a Solaris DPE and Linux RDU

Why does execution of a reliable batch fails for Radius-only user?

Why does BAC 4.x and 4.x.x API clients get unrecognized batch ID?

IPv6 Configuration

How do I enable provisioning in IPv6 for DPE?

How do I configure an IPv4 interface for provisioning?

DPE is configured for IPv6 provisioning, but Prime Cable Provisioning does not provision IPv6 DOCSIS 3.0 devices. Why?

When searching for all devices using their MAC address, some IPv6 devices do not show up. Why?

How do I enable IPv6 on an interface?

How do I configure IPv6 on a loopback interface?

How do I disable a stateful DHCPv6 client on Solaris 10?

How do I assign a static IP address to an interface?

CMTS Configuration

How do I know that both cable line cards are using the cable bundle 1?

Is there an IPv6 cable-helper address that I can use?

How do I configure multiple IPv6 subnets similar to IPv4 primary and secondary IPv4 subnets?

How do I view the list of IPv6 modems on the CMTS?

How do I configure a CMTS interface to accept only IPv6 single stack?

What does the modem state init(x) mean?

Frequently Asked Questions

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This chapter provides a list of frequently asked questions about Provisioning Prime Cable Provisioning Center.

This section lists answers to FAQs about Prime Cable Provisioning provisioning.

•Prime Cable Provisioning Configuration

•IPv6 Configuration

•CMTS Configuration

Prime Cable Provisioning Configuration

This section features FAQs related to general Prime Cable Provisioning configurations.

•How do I enable or disable Network Registrar extensions?

•How do I enable tracing for Network Registrar extensions?

•Why does the DPE server registration fails?

•Why does RDU crash while updating the agent.conf?

•Why are the components not been able to communicate?

•Why does connection drop between a Solaris DPE and Linux RDU

•Why does execution of a reliable batch fails for Radius-only user?

•Why does BAC 4.x and 4.x.x API clients get unrecognized batch ID?

How do I enable or disable Network Registrar extensions?

The procedures described in this section assume that:

•The Prime Cable Provisioning component is installed in /opt/CSCObac.

•Cisco Prime Network Registrar is installed in /opt/nwreg2.

To manually install Network Registrar extension points:

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Step 1 Log into the Network Registrar server, with root access.

Step 2 Take a backup and copy the libbprextensions.so directory to the NR_HOME/local/extensions/dhcp/dex/ directory.

Step 3 Take a backup and copy the cnr_ep.properties file to the BPR_HOME/cnr_ep/conf directory.

Step 4 Configure extensions from the Network Registrar command-line tool (nrcmd) using:

NR_HOME/local/usrbin/nrcmd -s -b < BPR_HOME/cnr_ep/bin/bpr_cnr_enable_extpts.nrcmd

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To manually disable Network Registrar extension points:

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Step 1 Log into the Network Registrar server, with root access.

Step 2 Enter:

NR_HOME/local/usrbin/nrcmd -s -b < BPR_HOME/cnr_ep/bin/bpr_cnr_disable_extpts.nrcmd

Step 3 Delete the libbprextensions.so file, which is located in the NR_HOME/local/extensions/dhcp/dex/ directory.

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How do I enable tracing for Network Registrar extensions?

To enable tracing for Network Registrar extension points:

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Step 1 Log into the Network Registrar web UI. The default login and password are admin and changeme.

Step 2 From the menu, click DHCP > DHCP Server page.

The Manage DHCP Server page appears.

Step 3 Click the DHCP Server link.

The Edit DHCP Server page appears.

Step 4 Expand the Extensions category, and set the extension-trace-level value as 3 or 4.

Step 5 To view incoming and outgoing packets, expand the Logging category, and select the incoming-packet-detail and outgoing-packet-detail check boxes.

Step 6 Click Modify Server.

Step 7 Reload the DHCP server.

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Why does the DPE server registration fails?

The registration of your DPE servers may be failing because the DPEs are not up to the requirements of the provisioning group.

Check the DPE log files for error messages that indicate that you must:

•Enable additional configuration, for example, if you must enable the TFTP service on the DPE.

•Upgrade the servers to enable features that are available only in this release of Prime Cable Provisioning.

Why does RDU crash while updating the agent.conf?

For RDU or DPE, you must not configure any extended JVM arguments through agent.conf.

Why are the components not been able to communicate?

The firewall must be disabled on the servers on which the Prime Cable Provisioningcomponents are installed. To know the ports that are being used by Prime Cable Provisioning, see Port Information from the Support Site.

Why does connection drop between a Solaris DPE and Linux RDU

Drop in connection between Solaris DPE and Linux RDU occurs when there is a huge regeneration of device configuration behind a single CM or when configuration regeneration for 1 million CM devices happens using CoS level change where a CRS job is kicked in.

Why does execution of a reliable batch fails for Radius-only user?

A reliable batch submitted by a Radius only user cannot be guaranteed to execute across reboots or when the user logs out. This applies to those users that do not have their privileges defined in an RDU account but are only provided by a remote Radius server.

Why does BAC 4.x and 4.x.x API clients get unrecognized batch ID?

In Prime Cable Provisioning 5.0, a few new command error messages as well as error codes are added that the API clients of earlier releases do not recognize and in such a case the API clients keep asking for the batch response to the RDU. But as the batch was already processed and the response was sent earlier, the RDU does not remember the batch response and hence responds with an error message from the second attempt onwards.

For successful communication between the Prime Cable Provisioning 5.0 RDU with 4.x and 4.x.x API clients, ensure that the 5.0 bpr.jar, bacbase.jar, and bac-common.jar files are copied to the 4.x and 4.x.x API client setup. These jars are loaded to the appropriate classpaths. We recommend that you use Java version 1.6.0_32 or later to support the API client in Prime Cable Provisioning.

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Note If you are upgrading from 4.2.x to 5.0, ensure that all your API clients are upgraded to 4.2.1 before upgrading the RDU to 5.0. After upgrading all the RDUs to 5.0 upgrade all the API clients to 5.0.

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Some of the scenarios in which the RDU can send new command error code are listed below.

• User does not have the specific privileges to execute a given command.

• Instance level authorization failure.

• User information (accessible privileges, accessible domains and active sessions) is not cached in the RDU. This can happen for a persistent API client with Prime Cable Provisioning jars prior to 4.2, as they do not re-authenticate while reconnecting to the RDU. Hence the user information is not cached in the RDU. The workaround to resolve this issue is to restart the API client after every RDU restart and the user must re-authenticate after the restart of the API client. To fix this issue, upgradethe API client jars of earlier releases to Prime Cable Provisioning 5.0 release.

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Note The user information is stored in the RDU cache only when the user is authenticated. The user information remains in the cache until the last active user session expires or is terminated.

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IPv6 Configuration

This section features FAQs related to IPv6 while configuring Prime Cable Provisioning.

•How do I enable provisioning in IPv6 for DPE?

•How do I configure an IPv4 interface for provisioning?

•DPE is configured for IPv6 provisioning, but Prime Cable Provisioning does not provision IPv6 DOCSIS 3.0 devices. Why?

•When searching for all devices using their MAC address, some IPv6 devices do not show up. Why?

•How do I enable IPv6 on an interface?

•How do I configure IPv6 on a loopback interface?

•How do I disable a stateful DHCPv6 client on Solaris 10?

•How do I assign a static IP address to an interface?

How do I enable provisioning in IPv6 for DPE?

To enable IPv6 provisioning for the DPE, complete this procedure from the DPE command line:

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Step 1 For enabling IPv6 provisioning, you must configure two interfaces using the following commands:

a. To configure the DPE to use the specified interface, identified by its IP address, when communicating with Network Registrar extensions, enter:

interface ip ip_address pg-communication

ip_address—Identifies the IPv4 address of a specific DPE interface.

b. To configure the specified interface, identified by its IP address, to handle provisioning requests, enter:

interface ip ip_address provisioning

ip_address—Specifies the IP address of the interface in the IPv6 format.

Step 2 Enable these services using the respective commands:

•TFTP—service tftp 1..1 ipv6 enabled true

•ToD—service tod 1..1 ipv6 enabled true

Step 3 Reload the DPE using the dpe reload command.

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How do I configure an IPv4 interface for provisioning?

To configure an IPv4 interface for provisioning, you must set the fully qualified domain name (FQDN) for that interface using this command:

# interface ip ip_address provisioning fqdn fqdn

•ip_address—Specifies the IP address of the interface in the IPv4 format.

•fqdn—Identifies the FQDN that is set on the specified interface.

DPE is configured for IPv6 provisioning, but Prime Cable Provisioning does not provision IPv6 DOCSIS 3.0 devices. Why?

You must enable DOCSIS 3.0 for the provisioning group to which the DPE belongs.

On the Prime Cable Provisioning administrator user interface:

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Step 1 Choose Servers > Provisioning Group.

The Provisioning Group Details page appears.

Step 2 Click the Provisioning Groups link corresponding to the specific DPE.

Step 3 In the Capabilities Management area, click the Enabled radio button corresponding to IPv6 - DOCSIS 3.0.

Step 4 Click Submit.

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When searching for all devices using their MAC address, some IPv6 devices do not show up. Why?

Some IPv6 devices do not appear following a search for all devices using the MAC address option because devices such as the Vista IPv6 computer do not report their MAC address in the Solicit message. As a result, they are known only by their DUID.

If a device reports its MAC address in the CableLabs Device ID option, then you can locate that device using its DUID or its MAC address.

How do I enable IPv6 on an interface?

To enable IPv6 on an interface, run the following commands:

# ifconfig intf inet6 plumb up

# /usr/lib/inet/in.ndpd

# touch /etc/hostname6.intf

where intf identifies the interface on which you want to enable IPv6.

How do I configure IPv6 on a loopback interface?

Before you configure IPv6 on a loopback interface, confirm if the loopback interface is up using this command:

# ifconfig -a

If the loopback interface is not up, log in as root and run the following commands:

# ifconfig lo0 inet6 plumb

# route add -inet6 ::1/128 localhost

# ifconfig lo0 inet6 up

How do I disable a stateful DHCPv6 client on Solaris 10?

To disable a stateful DHCPv6 client on Solaris 10, you must change the ndpd.conf file using these commands:

# cat > /etc/inet/ndpd.conf <<EOF

ifdefault StatefulAddrConf off

EOF

How do I assign a static IP address to an interface?

While assigning a static IP address is not essential, to do so, run this command:

# ifconfig bge0 inet6 addif 2001:420:3800:601::1/64 up

CMTS Configuration

This section describes some FAQs related to configuring a cable modem termination system (CMTS):

•How do I know that both cable line cards are using the cable bundle 1?

•Is there an IPv6 cable-helper address that I can use?

•How do I configure multiple IPv6 subnets similar to IPv4 primary and secondary IPv4 subnets?

•How do I view the list of IPv6 modems on the CMTS?

•How do I configure a CMTS interface to accept only IPv6 single stack?

•What does the modem state init(x) mean?

How do I know that both cable line cards are using the cable bundle 1?

You must add this setting for each cable interface:

interface Cable3/0

 cable bundle 1

Is there an IPv6 cable-helper address that I can use?

Yes, this setting on the bundle is equivalent to the helper-address in IPv4:

    ipv6 dhcp relay destination FC00:420:3800:710::2 GigabitEthernet0/1

How do I configure multiple IPv6 subnets similar to IPv4 primary and secondary IPv4 subnets?

While you can assign multiple prefixes to a bundle for IPv6, there are no primary or secondary types for these subnets in IPv6.

How do I view the list of IPv6 modems on the CMTS?

Use the following command to see the list of IPv6 modems:

show cable modem ipv6

How do I configure a CMTS interface to accept only IPv6 single stack?

You must add this option to the interface of the cable modem termination system (CMTS):

(config-if)# cable ip-init ipv6

What does the modem state init(x) mean?

The show cable modems (scm) command displays the connected cable modems and their respective states.

Table 27-1 lists the various modem states in both IPv4 and IPv6.

Table 27-1 Cable Modem States 

State	Description
IPv4
init(d)	DHCP Discover
init(io)	DHCP Offer
init(dr)	DHCP Request
init(i)	DHCP Ack
init(o)	TFTP Request
Init(t)	ToD Request
online	Online
IPv6
init6(s)	Solicit
init6(a)	Advertise
init6(r)	Request
init6(i)	Reply
init6(o)	IPv6 TFTP Request
init6(t)	IPv6 ToD request
online	Online