Chapter 42: Fully-Qualified Domain Name (FQDN)
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
1075
Name : dsg-srv2.lab.arrisi.com
IP Addr :
State : IP does not exist
Last Poll: 2011 March 24 09:49:25
Name : dsg-srv3.lab.arrisi.com
IP Addr :
State : Invalid IP
Last Poll: 2011 March 24 09:49:25
Name : dsg-srv4.lab.arrisi.com
IP Addr : 10.192.68.4
State : Timeout
Last Poll: 2011 March 24 09:49:25
FQDN Rejection Scenarios
Under certain circumstances attempts to configure an FQDN will fail or generate a log message. The following are some
typical examples:
If a DSG tunnel classifier with explicit source and group addresses has been configured, it must be deprovisioned
before the same classifier can be used for an FQDN. If you do not first deprovision the DSG tunnel classifier, the CLI
command to assign an FQDN will fail.
If on the contrary a DSG tunnel classifier has been configured with an FQDN, then this DSG tunnel classifier cannot be
reconfigured with explicit source and group addresses. The DSG tunnel classifier must first be deprovisioned before it
can be reconfigured with explicit source and group addresses.
If the FQDN feature has configured an IGMP statically provisioned multicast group that has been resolved to an IP
address, any attempt by the user to create an IGMP statically provisioned multicast group with the same source and
group addresses will fail.
If the FQDN feature has configured an IGMP statically provisioned multicast group that has not yet been resolved to an
IP address, and the user creates an IGMP statically provisioned multicast group with explicit addresses, and after that
the FQDN resolves to the same source address, then this FQDN will be saved. The C4/c CMTS will generate a log
message to notify the user that this configuration may not be what he or she intended. The saved FQDN will take effect
only if the IGMP statically provisioned multicast group with explicit IP addresses is deprovisioned.