Restrictions for Service Group Admission Control
Table 24: Hardware Compatibility Matrix for the Cisco cBR Series Routers
Cisco CMTS Platform
Cisco cBR-8 Converged
Broadband Router
Restrictions for Service Group Admission Control
• To configure SGAC, the Fairness Across DOCSIS Interfaces feature must be enabled.
• SGAC supports downstream only.
Information About Service Group Admission Control
Overview
Service Group Admission Control (SGAC) is a mechanism that gracefully manages service group based
admission requests when one or more resources are not available to process and support the incoming service
request. Lack of such a mechanism not only causes the new request to fail with unexpected behavior but could
potentially cause the flows that are in progress to have quality related problems. SGAC monitors such resources
constantly, and accepts or denies requests based on resource availability.
Cisco cBR Series Converged Broadband Routers Quality of Services Configuration Guide for Cisco IOS XE
Fuji 16.7.x
104
Processor Engine
Cisco IOS-XE Release 16.5.1 and
Later Releases
Cisco cBR-8 Supervisor:
• PID—CBR-CCAP-SUP-160G
• PID—CBR-CCAP-SUP-60G
• PID—CBR-SUP-8X10G-PIC
Service Group Admission Control
Interface Cards
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