Specifications
23
Release Notes for Cisco uBR924 Cable Access Router for Cisco IOS Release 12.1(5)T
OL-0385-04 Rev. B0 (2/2001)
Important Notes
Cisco Voice MIBs
The Cisco uBR924 Cable Access Router supports the Cisco Voice MIBs are supported, which consist
of the following components:
• CISCO-VOICE-IF-MIB
• CISCO-VOICE-DIAL-CONTROL-MIB
• CISCO-VOICE-ANALOG-MIB
• CISCO-DIAL-CONTROL-MIB
• DIAL-CONTROL-MIB
• SGCP-MIB
• XGCP-MIB
Radio Frequency Interface MIBs
The Cisco uBR924 Cable Access Router supports the Radio Frequency Interface (RFI) MIB. The RFI
MIB module is defined in RFC 2670 and describes DOCSIS-compliant radio frequency interfaces in
cable modems and CMTS. On the cable modem, RFI MIB entries provide:
• Upstream and downstream channel characteristics
• Class-of-service attributes
• Physical signal quality of the downstream channels
• Attributes of cable access router MAC interface
• Status of several MAC layer counters
The RFI MIB includes tables describing both the CMTS and the cable modem side of the cable
interface. All cable modem tables are implemented.
With IPSec, data can be transmitted across a public network without fear of observation, modification,
or spoofing. This enables applications such as VPNs, extranets, and remote user access.
IPSec services are similar to those provided by Cisco Encryption Technology, a proprietary
Cisco security solution. However, IPSec provides a more robust security solution, and is standards
based.
SGCP and MGCP MIBs
The Cisco uBR924 Cable Access Router supports the Simple Gateway Control Protocol (SGCP) and
Media Gateway Control Protocol (MGCP) through a single MIB (XGCP-MIB). This MIB supports
configuration, performance, and fault management of the SGCP and MGCP interfaces.
The key attributes of this MIB are as follows:
• xgcplnBadVersions—Number of incoming messages delivered to the protocol entity and that are
for an unsupported protocol version
• xgcpRequestTimeOut—Timeout value used for retransmitting an unacknowledged message
• xgcpRequestRetries—Number of retries for a request that exceeds timeout
• xgcpAdminStatus—Desired state of the protocol entity
• xgcpOperStatus—Current operational status of the protocol entity
• xgcpUnRecognizedPackets—Number of unrecognized packets since reset