Installation guide
18
Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.1 T
78-10643-04 Rev. B0
New and Changed Information
New and Changed Information
The following sections list the new hardware and software features supported by the
Cisco uBR7200 Series Universal Broadband Routers for Cisco IOS Release 12.1 T
No New Hardware Features in Release 12.1(5)T
There are no new hardware features supported by the Cisco uBR7200 Series Universal Broadband
Routers in Cisco IOS Release 12.1(5)T.
New Software Features in Release 12.1(5)T
The following new software features are supported by the Cisco uBR7200 Series Universal Broadband
Routers in Cisco IOS Release 12.1(5)T.
AutoInstall Using DHCP for LAN Interfaces
The AutoInstall Using DHCP for LAN Interfaces feature replaces the use of the Bootstrap Protocol
(BOOTP) with the use of the Dynamic Host Configuration Protocol (DHCP) for Cisco IOS AutoInstall
over LAN interfaces. AutoInstall is a Cisco IOS software feature that provides for the configuration of
a new routing device automatically when the device is initialized. DHCP (defined in RFC 2131) is based
on the Bootstrap Protocol, which provides the framework for passing configuration information to hosts
on a TCP/IP network. DHCP adds the capability of automatic allocation of reusable network addresses
and additional configuration options.
In Cisco IOS Release 12.1(5)T, the IP address procurement phase of the AutoInstall process is now
accomplished using DHCP for Ethernet, Token Ring, and FDDI interfaces. Before this release, IP
addresses for LAN interfaces were obtained using BOOTP during the AutoInstall process. The
6. RF = radio frequency
7. SNMPv2 = Simple Network Management Protocol version 2
8. SNMPv3 = Simple Network Management Protocol version 3
9. ATM = Asynchronous Transfer Mode
10. The DOCSIS 1.0+ QoS Enhancements is a set of Cisco's Quality of Service extensions to DOCSIS 1.0 to enable basic VoIP service over the DOCSIS
link before DOCSIS 1.1 becomes available.
The main enhancements include support for dynamic creation and teardown of flows during voice calls, support for one new slot scheduling mechanism
(UGS) for voice slots, and per IP-precedence rate shaping on the downstream.
11. RTP = Real-Time Transport Protocol
12. HTTP = Hypertext Transfer Protocol
13. AAA =authentication, authorization, and accounting
14. This feature is supported in Cisco IOS Release 12.1(2)T, Release 12.1(5)T, and higher releases. Release 12.1(3)T does not support this feature.
15. PAD = packet assembler/disassembler
16. ISDN = Integrated Services Digital Network
17. NFAS = non-facility-associated signaling
18. BRI = Basic Rate Interface
19. PRI = Primary Rate Interface
20. VPDN = virtual private dial-up network
21. PVC = permanent virtual circuit
22. SVC = switched virtual circuit