Cisco cBR 8 User Manual

Table 14: Hardware Compatibility Matrix for the Cisco cBR Series Routers
Interface CardsProcessor EngineCisco CMTS Platform
Cisco IOS-XE Release 16.5.1 and
Later Releases
Cisco cBR-8 CCAP Line Cards:
• PID—CBR-LC-8D30-16U30
• PID—CBR-LC-8D31-16U30
• PID—CBR-RF-PIC
• PID—CBR-RF-PROT-PIC
• PID—CBR-CCAP-LC-40G-R
Cisco cBR-8 Downstream PHY
Modules:
• PID—CBR-D30-DS-MOD
• PID—CBR-D31-DS-MOD
Cisco cBR-8 Upstream PHY
Modules:
• PID—CBR-D30-US-MOD
• PID—CBR-D31-US-MOD
Cisco IOS-XE Release 16.5.1 and
Later Releases
Cisco cBR-8 Supervisor:
• PID—CBR-SUP-250G
• PID—CBR-CCAP-SUP-160G
• PID—CBR-CCAP-SUP-60G
• PID—CBR-SUP-8X10G-PIC
Cisco cBR-8 Converged
Broadband Router
Restrictions for SNMP Cache Engine Enhancement
The time interval for which the cached information is available on the Supervisor is 5 seconds.
Information About SNMP Cache Engine Enhancement
The SNMP Cache Engine Enhancement feature caches the information on the Supervisor for the MIB tables,
which need to retrieve the data from the interface cards. When a MIB table item is queried from the interface
card, the next N items are retrieved and cached on the Supervisor.
For example, if SNMP client queries the docsIf3CmtsCmRegStatusMacAddr.1, the interface card bundles
docsIf3CmtsCmRegStatusMacAddr.1, docsIf3CmtsCmRegStatusMacAddr.2,
docsIf3CmtsCmRegStatusMacAddr.3, to docsIf3CmtsCmRegStatusMacAddr.N together in one IPC response,
and sends it to the Supervisor. The Supervisor caches all the items locally. When the SNMP client queries
the docsIf3CmtsCmRegStatusMacAddr.2 later, the information is available in the Supervisor cache directly
instead of sending another IPC message to interface card. The number N depends on the single MIB item size
and maximum IPC message buffer size.
The MIB table information for following MIBs are retrieved and cached on the Supervisor:
Cisco cBR Series Converged Broadband Routers Troubleshooting and Network Management Configuration
Guide for Cisco IOS XE Fuji 16.8.x
82
SNMP Engine Enhancement
Restrictions for SNMP Cache Engine Enhancement

Cisco cBR 8 Specifications

General

Brand	Cisco
Model	cBR 8
Category	Network Router
Language	English