Troubleshooting guide

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Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
Chapter 1 Solution Overview
Architectural Overview
Functional Architecture
The generic Cisco BLISS for Cable solution architecture consists of multiple functional planes,
as illustrated in Figure 1-1:
• Customer Premise Equipment (CPE) layer—Includes MTA equipment and access gateways
• Aggregation layer—Includes the CMTS, which aggregates traffic from all of the CPE uplinks
• Core Switching layer—Provides the IP core network (packet backbone)
• Trunking layer—Provides the off-net PSTN and Internet access interfaces
• Call Control layer—Provides the call control/signaling support, Feature Server interfaces, and
support for network resource interfaces
• Network Management layer—Provides the EMS and network management components
• Operational Support System Layer—Provides the operational interfaces and applications
required to manage the network and the Cisco BLISS for Cable solution
Figure 1-1 Cisco BLISS for Cable Functional Architecture
In the access plane, the Cisco BLISS for Cable solution supports multiple access technologies and
customer premise equipments. The architectural framework allows any given plane to be indifferent to
other planes. For instance, the non-access parts of the network are, for the most part, transparent to the
technology being used on the access side of the network.
On the switching/SuperPop side of the network, new trunking gateways along with the announcement,
media, and CALEA servers are connected to the IP core through a Cisco Catalyst 6509 LAN switch.
104554
Trunk
Gateways
(CO, POP)
Core
Aggregation
Access
Gateways
CPE
Network Management Layer
Operational Support System Layer
PSTN
MGCP
SS7
Call Control
Features
Resources
Signaling
Subscribers
Cisco
BTS 10200
MGCP