Cisco MCS-7825-H3-IPC1, Руководство по обслуживанию

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Cisco Unified Communications Manager Managed Services Guide
OL-22523-01
Chapter 1 Overview
Managed Services
Managed Services
Two general types of managed services exist:
•
Basic services that provide connectivity to the network—Routing, Domain Name System (DNS),
and quality of service (QoS).
• High-valued services that the Service Provider offers to its customers—Videoconferencing, mobile
IP, VPNs, VoIP, and Wireless. The high-valued services use the basic services as a backbone.
The service provider may require these server types and services:
• Web server with the ability to display web pages, even during high usage hours, to meet the demands
of customers. The web pages get used to pay bills, check minutes of usage in the case of a cell phone,
and buy new products. The web server and application server work together to display information
that the service provider customer requires.
•
Dedicated application server with the ability to advise customers when a product is out of stock,
when bill is past due, or when need arises to buy more minutes.
• Mail server with the ability to notify customers to confirm an order or send a receipt for purchases.
•
Secure gateway with VPN with the ability to have secure communications between the service
provider and its customers and suppliers.
Be aware that any one of these services is critical to the operations of a service provider. Managing these
services to ensure continuous operation requires a system that monitors fault, configuration,
performance and security across all of the network elements. The introduction of element-to-element
synchronization and the issues of using different vendor products complicates the task.
Cisco Unified Serviceability and SNMP attempt to address some of these network management issues:
• Are infrastructure elements functioning? If not, which are failing?
•
What cause the failure? For example, recent configuration changes.
• What is the impact of the failure on the network as a whole and the impact on the elements within
the network?
•
What is the impact of the failure on services and customers?
• How long to correct the failure?
•
Are there backup facilities?
• Are there any pending failures?
•
How many packets were sent and received on a particular device? How many web pages were
accessed.
• How were other devices used—how often and how long?
Cisco Unified CM supports SNMP v1, v2, and v3. SNMP remotely monitors, configures, and controls
networks. SNMP sends fault messages to assigned managers as SNMP trap or inform request Protocol
Data Units (PDUs). For more information, see
Chapter 4, “Simple Network Management Protocol.”
Cisco Unified Serviceability, a component of Cisco Unified CM Administration includes its own set of
error messages and alarms. Both applications use Management Information Base (MIB) text files to
manage alarms and alerts, notifications, and error messages. For more information, see
Chapter 6,
“Cisco Unified Serviceability Alarms and CiscoLog Messages.”