Specifications

18
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
New and Changed Information
Multicast Source Discovery Protocol MIB
Platforms: Cisco 7200 series, Cisco 7500/RSP series
The Multicast Source Discovery Protocol (MSDP) MIB feature adds support in Cisco IOS software for
the MSDP MIB. This MIB describes objects used for managing MSDP operations using Simple
Network Management Protocol (SNMP). Documentation for this MIB exists in the form of an Internet
Draft titled “Multicast Source Discovery Protocol MIB” (draft-ietf-msdp-mib-03.txt) and is available
through the Internet Engineering Task Force (IETF) at http://www.ietf.org. Refer to the following
document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s12/12
s_msdp.htm
Versatile Interface Processor-Based Distributed FRF.12
Platforms: Cisco 7500/RSP series
The Voice over Frame Relay (VoFR) capabilities that were introduced on the Cisco MC3810
multiservice access concentrator beginning with Cisco IOS Release 11.3 were eventually extended to
the Cisco 2600 series, 3600 series, and 7200 series router platforms. These capabilities are now
available for Cisco 7500 series routers (with a VIP).
When VoFR is configured on a Cisco router, the router is able to carry voice traffic such as telephone
calls and faxes over a Frame Relay network.
The Cisco implementation of Voice over Frame Relay provides the following benefits to existing Frame
Relay networks:
• Enables real-time, delay-sensitive voice traffic to be carried over slow Frame Relay links.
• Allows dedicated 64-kbps Time-Division Muliplexing (TDM) telephony circuits to be replaced by
more economical Frame Relay permanent virtual circuits.
• Allows voice-enabled routers from multiple remote sites to be multiplexed into a central site router
through Frame Relay links.
• Utilizes voice compression technology that conforms to ITU-T specifications.
• Enables Cisco 7500 series routers with a VIP to support Frame Relay fragmentation.
See the following document for further information:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s12/vo
fr/index.htm
New Features in Cisco IOS Release 12.0(11)S
Many of the new features in Cisco IOS Release 12.0 S were introduced in other Cisco IOS releases. For
more complete information, refer to the original release.
1OC-48/STM-16 SRP Line Card
Platforms: Cisco 12000 series
The 1OC-48/STM-16 SRP line card has a pair of OC-48c, fiber-optic standard connector (SC) duplex
ports that provide an SC connection for either the single-mode short-reach or single-mode long-reach
version.