Cisco Cisco Broadband Access Center Telco Wireless 3.5
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Cisco Broadband Access Center for Cable Administrator’s Guide
OL-2445-02
Chapter 5 Configuring Broadband Access Center for Cable
Automatic FQDN Generation
Specifically, when configuring for PacketCable and many other technologies, the domain name property
must also be configured. If you do not specify a domain name while provisioning a PacketCable MTA,
the BAC property hierarchy is searched and, if it is not found, the MTA is not provisioned. However, if
you do specify the domain name during MTA provisioning, that domain name will be used regardless of
what domain name property is specified in the BAC property hierarchy.
must also be configured. If you do not specify a domain name while provisioning a PacketCable MTA,
the BAC property hierarchy is searched and, if it is not found, the MTA is not provisioned. However, if
you do specify the domain name during MTA provisioning, that domain name will be used regardless of
what domain name property is specified in the BAC property hierarchy.
Properties for Automatically Generated FQDNs
Properties can be defined at any acceptable point in the of the BAC property hierarchy. You can use the
System Defaults, Technology Defaults, DHCP Criteria, or Class of Service to accomplish this, you can
also do this at the device level.
System Defaults, Technology Defaults, DHCP Criteria, or Class of Service to accomplish this, you can
also do this at the device level.
FQDN Validation
There are a few things to consider when entering the information that is used to generate an FQDN.
These include:
These include:
•
Use valid alphanumeric characters only in the generated FQDN.
•
Keep the length of each label (characters between the dots in the generated FQDN) to fewer than 63
characters.
characters.
•
Do not allow the overall length of the generated FQDN to exceed 254 characters.
Note
The FQDN supports host and domain names as per RFC1035.
Sample Automatic FQDN Generation
This section provides an example of creating an automatically generated FQDN.
Step 1
Choose the appropriate class of service, and set the /fqdn/domain property value to the DNS domain for
all devices using this class of service. For the purposes of this example, assume that the domain in use
is pctest.com, and that you want to provision a set of PacketCable devices into that domain.
all devices using this class of service. For the purposes of this example, assume that the domain in use
is pctest.com, and that you want to provision a set of PacketCable devices into that domain.
Note
If a domain is not specified, devices in the class of service will not receive a DHCP configuration from
BAC.
BAC.
Step 2
Click Submit.
In this example, a device with MAC addr 1,6,00:00:00:00:00:00 will yield an automatically generated
FQDN of cisco1-6-aa-bb-cc-dd-ee-fftemp.pctest.com.
FQDN of cisco1-6-aa-bb-cc-dd-ee-fftemp.pctest.com.