Белая книга для Cisco Cisco Performance Agent 1.0
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Deployment Guide
Cisco Performance Agent
Figure 1. Application visibility in all network segments using Performance Agent in branch office
Cisco
®
Performance Agent is a licensed software feature of Cisco IOS
®
Software that offers comprehensive
application performance and network usage data valuable for network administrators to accurately characterize
user experience and optimize the use of network resources. When enabled, the feature can be configured to
export application performance analytics, traffic statistics, and WAN optimization metrics in a NetFlow Version 9
template-based format, making it easier for management applications to consume.
Cisco Performance Agent provides visibility into branch-office applications and network performance. It collects
application response time metrics and reports to the Cisco Prime
™
Network Analysis Module (NAM) or partner
reporting tool. Cisco Performance Agent can be deployed in Cisco 880 and 890 Series Integrated Services
Routers, part of the Cisco Integrated Services Routers Generation 2 (ISR G2) portfolio. You can use Cisco
Performance Agent as an application performance data source; the application works with Cisco Wide Area
Application Services (WAAS) Express. The Cisco Flow Agent is used as an application performance data source
and works with the Cisco Wide Area Application Engine (WAE) and Cisco WAAS Services-Ready Engine (SRE).
When the Cisco Performance Agent is deployed with Cisco WAAS Express, it will also report Cisco WAAS
optimization statistics. The performance agent takes advantage of Network-Based Application Recognition
(NBAR) Deep Packet Inspection (DPI) for a more accurate application representation. It provides the Cisco
Common Classification Policy Language (C3PL) user interface for configuration.
When using WAN optimization, application visibility in all network segments can be achieved by deploying the
NAM in the data center. You can use Cisco Performance Agent running in the branch-office router and Cisco Flow
Agent running in the Cisco WAE appliance in the data center as data sources for collecting application
performance data.
The Cisco Prime NAM measures and reports application response time, traffic statistics, WAN bandwidth usage,
LAN and WAN data throughput, and other application performance metrics. You can use the NAM to identify the
source of performance degradation across multiple network segments based on the following data:
●
Transaction time (TT)
●
Monitoring the WAN latency using the server-network-delay (SND) metric
●
Monitoring the LAN latency using the client-network-delay (CND) metric