App Response Time
Table of Contents
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- Configure Circuits
- Configure Circuit Categories
- Configure Device Initiated Connections for Circuits
- Add Public IP LAN Address to Enterprise Prefixes
- Add a Branch
- Add a Data Center
- Manage Data Center Clusters
- Configure a Site Prefix
- Configure a DHCP Server
- Configure NTP for Prisma SD-WAN
- Enable IoT Device Visibility in Prisma SD-WAN
- Configure the ION Device at a Branch Site
- Configure the ION Device at a Data Center
- Switch a Site to Control Mode
- Allow IP Addresses in Firewall Configuration
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- Configure a Controller Port
- Configure Internet Ports
- Configure WAN/LAN Ports
- Configure a Sub-Interface
- Configure a Loopback Interface
- Configure a PPPoE Interface
- Configure a Layer 3 LAN Interface
- Configure Application Reachability Probes
- Configure a Secondary IP Address
- Configure a Static ARP
- Configure a DHCP Relay
- Configure IP Directed Broadcast
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- Configure IPFIX
- Configure IPFIX Profiles
- Configure IPFIX Templates
- Configure Collector Contexts
- Configure Filter Contexts
- Configure Global IPFIX Prefixes
- Configure Local IPFIX Prefixes
- Attach an IPFIX Profile to an ION Device
- Attach a Collector Context to a Device Interface
- Attach a Filter Context to a Device Interface
- Configure High Availability (HA) for IPFIX
- Flow Information Elements
- Options Information Elements
- Configure SNMP
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- Prisma SD-WAN Branch Routing
- Prisma SD-WAN Data Center Routing
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- Configure Multicast
- Create a WAN Multicast Configuration Profile
- Assign WAN Multicast Configuration Profiles to Branch Sites
- Configure a Multicast Source at a Branch Site
- Configure Global Multicast Parameters
- Configure a Multicast Static Rendezvous Point (RP)
- Learn Rendezvous Points (RPs) Dynamically
- View LAN Statistics for Multicast
- View WAN Statistics for Multicast
- View IGMP Membership
- View the Multicast Route Table
- View Multicast Flow Statistics
- Prisma SD-WAN Incident Policies
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- Prisma SD-WAN Branch HA Key Concepts
- Configure Branch HA
- Configure HA Groups
- Add ION Devices to HA Groups
- View Device Configuration of HA Groups
- Edit HA Groups and Group Membership
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- Configure Branch HA with Gen-1 Platforms (2000, 3000, 7000, and 9000)
- Configure Branch HA with Gen-2 Platforms (3200, 5200, and 9200)
- Configure Branch HA with Gen-2 Embedded Switch Platforms (1200-S or 3200-L2)
- Configure Branch HA for Devices with Software Cellular Bypass (1200-S-C-5G)
- Configure Branch HA for Platforms without Bypass Pairs
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- Native SASE Integration with Prisma SD-WAN
- Connect a Single Prisma SD-WAN Site to Prisma Access
- Connect Multiple Prisma SD-WAN Sites to Prisma Access
- Edit Application Policy Network Rules
- Understand Service and Data Center Groups
- Verify Standard VPN Endpoints
- Configure Standard Groups
- Assign Domains to Sites
- Prisma SD-WAN Incidents and Alerts
App Response Time
Prisma SD-WAN
uses application response time to determine
the path a flow may take and confirms that the path adheres to the
application SLA.Prisma SD-WAN
uses application response
time to determine the path a flow may take and confirms that the
path adheres to the application SLA. Application response time is
a combination of Network Transfer Time
(NTT), Round Trip
Time
(RTT), and Server Response Time
SRT)
metrics and calculated for a flow on each path before a decision
is taken to send a flow on that path. These metrics reflect in the App
Response Time
chart.The chart displays detailed information on the application transaction
time for each prefix within an application. It determines network
and server performance for a specific application, including information
from the moment the client generates a request to the time the server receives
the response in the cloud or the data center. It also takes into
account L1 – L3 and L4 – L7 characteristics of an application, including
end-to-end performance rather than just latency, jitter, and packet
drops for an application.
App Response Time
chart reports on a per-app
basis. Select at least one app to view the App Response
Time by Path
table. The health of the selected paths
are indicated by color. You can view specific Health Events
table
associated with each application instance or service with transaction
or init failures. Refer to the above table to understand
descriptions on the different health states.Using NTTn, RTT, SRT, and UDP-TRT metrics, this chart provides
information on the source of an under performing application.
- Network Transfer Time (NTTn)—The measure of network congestion. The amount of time it takes to transfer incoming data from an external server to a local client.
- Round Trip Time (RTT)—The measure of network latency. RTT is measured only for TCP flows and defined as the time taken between a forward and return related protocol exchange; TCP SYN to SYN-ACK for outbound flows, TCP SYN-ACK to ACK for inbound flows and the time between a data sequence and ACK of that data sequence.Thus, RTT is measured throughout the life of a flow and not just at the TCP establishment. Measuring RTT throughout the flows life allows the system to account for TCP proxy devices like WAN optimization in the path, providing a more accurate measurement of RTT.
- Server Response Time—The amount of time it takes for the server to start transmitting data after it has acknowledged the client’s request. SRT measured for TCP flows only from the time request is received to the time the server sends the first response packet.
- UDP Response Time (UDP-TRT)—The amount of time it takes for the server to respond to the UDP transaction request from the time the request is received. Currently, UDP-TRT provides information on UDP DNS traffic only.