App-Probe-PFR-Stats Breakdown

The values provided in the App-Probe-PFR-Stats (example:- ) likely represent performance metrics related to Performance Routing (PFR) for different paths. While these values can vary based on the configuration, typical metrics involved include:

1. Packet Loss (PL): The percentage of packets lost during transmission. A high packet loss indicates network congestion or instability.

2. Jitter (JT): The variation in packet arrival times. High jitter can affect real-time services like voice and video, leading to poor quality or dropped connections.

3. Latency (LT): The time it takes for a packet to travel from source to destination. High latency can cause delays in applications that require real-time communication, such as video calls or VoIP.

4. Throughput (TP): The amount of data transmitted over a network in a given time period. It measures the bandwidth capacity of a path.

However, the exact meaning of each number in the App-Probe-PFR-Stats array depends on your configuration. Cisco SD-WAN could be using Performance Routing with several different paths, each one contributing to different performance metrics (Packet Loss, Jitter, Latency, Throughput, etc.).

In your case, the stats could represent:

• None: Possibly indicating no issues or "no data" for one of the key performance metrics.

• 3: Could indicate packet loss (e.g., 3% packet loss on a particular path).

• 17: Likely the jitter (e.g., 17 ms of jitter).

• 4: Possibly latency (e.g., 4 ms of latency).

How to Use App-Probe-PFR-Stats

1. Application Performance: By analyzing the PFR stats, you can determine if the network is providing the optimal path for applications that require low latency, high throughput, or minimal jitter.

2. Routing Decisions: If one path is showing worse performance (e.g., high packet loss or jitter), Cisco SD-WAN can reroute traffic over a better-performing path to ensure that applications are still functioning at acceptable levels.

3. Network Path Optimization: Performance Routing in Cisco SD-WAN leverages app-probes to continuously evaluate the performance of different paths and dynamically select the best one based on these metrics. This allows the SD-WAN solution to maintain application performance even when some network links experience degradation.

Key Benefits of App-Probe-PFR-Stats in Cisco SD-WAN:

• Dynamic Traffic Steering: Automatically selects the best path for traffic, ensuring high performance for critical applications.

• Improved Quality of Service (QoS): With metrics like jitter, latency, and packet loss, you can ensure that applications like VoIP, video conferencing, and real-time collaboration perform optimally.

• Network Visibility: These stats give administrators real-time visibility into network performance, which can help in diagnosing issues and optimizing paths accordingly.