Specifications

75
Release Notes for Cisco 7000 Family for Cisco IOS Release 12.1 T
78-10811-05
New and Changed Information
Transparent Common Channel Signaling
Platforms: Cisco 7200 series and Cisco 7500 series routers
Transparent CCS allows the connection of two PBXs with digital interfaces that use a proprietary or
unsupported CCS protocol without the need for interpretation of CCS signaling for call processing.
T1/E1 traffic is transported transparently through the data network and the feature preserves proprietary
signaling. From the PBX standpoint, this is accomplished through a point-to-point connection. Calls
from the PBXs are not routed, but follow a preconfigured route to the destination.
T.38 Fax Relay for Voice over IP H.323
Platforms: Cisco 7200 series routers
The T.38 Fax Relay for VoIP H.323 feature provides standards-based Fax Relay protocol support on
Cisco2600 series, Cisco3600 series, and CiscoMC3810 series multiservice gateways. The Cisco
proprietary Fax Relay solution is sometimes not an ideal solution for Enterprise and Service Provider
customers who have implemented a mixed vendor network. Because the T.38 Fax Relay protocol is
standards based, Cisco gateways and gatekeepers will now be able to interoperate with third-party
T.38-enabled gateways and gatekeepers in a mixed vendor network where real time Fax Relay
capabilities are required.
Virtual Switch Interface Master MIB
Platforms: Cisco 7200 series and Cisco 7500 series routers
The Virtual Switch Interface Master MIB provides a standardized vehicle for monitoring the operation
of the VSI protocol within a Label Switch Controller (LSC). It also displays the results of the protocol
operations. Specifically, with the VSI Master MIB you can monitor:
• Connections between an LSC and the switch it controls
• The status of the interfaces in the switch
• Virtual circuits (VCs) that are maintained across the interfaces
With the VSI Master MIB you can enlist Simple Network Management Protocol (SNMP) to monitor
the status of the VSI protocol and the results of its operations.
This MIB is primarily oriented toward management of Multiprotocol Label Switching (MPLS) systems.
As such, the MIB resides in routers that are also LSCs. These are routers that are VSI capable, and
whose network control application is MPLS.
WCCP Redirection on Inbound Interfaces
Platforms: Cisco 7200 series and Cisco 7500 series routers
The WCCP Redirection on Inbound Interfaces feature adds support to Cisco IOS software for the
redirection of Web Cache Coordination Protocol Version 2 (WCCPv2) traffic on inbound interfaces.
Prior to this release, WCCP was implemented as an output feature only, with packets classified by
WCCP after a routing table lookup. With Cisco IOS release 12.1(3)T, you can now configure an
interface for inbound redirection using CEF, dCEF, fast forwarding, and process forwarding paths.
WCCP redirection on inbound interfaces avoids the processing overhead created by CEF on outbound
interfaces.