Cisco Headend System Release 2.7 Release Notes
Chapter 1 Highlights
2
4035750 Rev A
Internet Protocol Version 6
SR 5.0 now supports Internet Protocol version 6 (IPv6) as well as IPv4. IPv6 has a
vastly larger address space than IPv4 (128 bits vs. 32 bits), which provides greater
flexibility in allocating addresses. Network security is also integrated into the design
of the IPv6 architecture.
vastly larger address space than IPv4 (128 bits vs. 32 bits), which provides greater
flexibility in allocating addresses. Network security is also integrated into the design
of the IPv6 architecture.
The following systems and subsystems within the DBDS support IPv6.
System or Subsystem
Supported IP Versions
DOCSIS® set-tops
IPv6
IPv4
Dual-stack IP
Unicast traffic
IPv6
IPv4
DNCS
IPv6 (static addresses)
IPv4 (static addresses)
Dual-stack IP
Headend components
that interact with the
DHCT (USRM, SDV
server, CMTS, VOD
server)
that interact with the
DHCT (USRM, SDV
server, CMTS, VOD
server)
IPv6 (static addresses)
IPv4 (static addresses)
Dual-stack IP
Note: These components present both
IPv6 and IPv4 addresses to the DNCS for
information and storage.
IPv6 and IPv4 addresses to the DNCS for
information and storage.
For more information, see IPv6 in System Release 5.0 Online Help (part number
4038475).
4038475).