Real-Time Performance Monitoring Services Overview

Real-Time Performance Monitoring (RPM) enables you to configure active probes to track and monitor traffic. Probes collect packets per destination and per application, including PING Internet Control Message Protocol (ICMP) packets, User Datagram Protocol and Transmission Control Protocol (UDP/TCP) packets with user-configured ports, user-configured Differentiated Services code point (DSCP) type-of-service (ToS) packets, and Web Hypertext Transfer Protocol (HTTP) packets. RPM provides MIB support with extensions for the following standard:

• RFC 2925, Definitions of Managed Objects for Remote Ping, Traceroute, and Lookup Operations

Probe configuration and probe results are supported by the command-line interface (CLI) and Simple Network Management Protocol (SNMP).

The following probe types are supported with DSCP marking:

• ICMP echo
• ICMP timestamp
• HTTP get
• UDP echo
• TCP connection

With probes, you can monitor the following:

• Minimum round-trip time
• Maximum round-trip time
• Average round-trip time
• Standard deviation of the round-trip time
• Jitter of the round-trip time—the difference between the minimum and maximum round-trip time

One-way measurements for ICMP timestamp probes include the following:

• Minimum, maximum, standard deviation, and jitter measurements for egress and ingress times
• Number of probes sent
• Number of probe responses received
• Percentage of lost probes

You can configure the following RPM thresholds:

• round-trip time
• Ingress/egress delay
• Standard deviation
• Jitter
• Successive lost probes
• Total lost probes (per test)