Endpoint Views Reference
This article provides summary details about each of the available sections of the Endpoint Agent views.
Related Video
This video explains the Endpoint Experience test views.
Primary Section
The primary section is the top part of all Endpoint views and contains the controls shared across the views.
View Tabs
The Local Networks tab is selected by default when you open Endpoint Experience > Views. Use the tabs across the top of the screen to select another Endpoint view. Each view contains one or more data types:
Local Networks: Network Access and Wireless.
Dynamic Tests: Network.
Scheduled Tests: HTTP and Network.
Real User Tests: Visited Pages and Network.
Snapshots
The Snapshot menu contains the following options:
Save a snapshot opens the Save a Snapshot dialog. Configure the snapshot, and then select Save.
View All Snapshots opens the Snapshots dialog. Search the saved snapshots or browse the paginated table by snapshot name, deletion date, and creation date. Select a snapshot name to open its saved data.
For more information, see Endpoint Agent Test Snapshots.
Test Selector
The Test dropdown shows enabled and disabled tests grouped by type. Use the search field to find a configured test. Select the test settings icon to open the selected test's configuration in a new tab.
Global Filters
Select Add Filter to apply global filters to the timeline and detailed results. Filter groups and fields change with the selected view and data type. They can include agent, network, destination, wireless, sample, and VPN attributes.
The metric selector above the timeline is separate from Add Filter. It determines the metric displayed on the timeline and in the detailed results. See the article for each Endpoint view for its available global filters and metrics.
Timeline
The Timeline is the primary focus of all Endpoint views. It shows test data from the last 30 days, or the length of time the test has been enabled (whichever is the lesser value).
Use the timeline controls to change or focus the displayed data:
Select 24h, 7d, or 14d to change the visible time range.
Select a point to load that interval in the detailed results.
Drag across the timeline to focus on a narrower range.
Use the previous and next interval controls to move between intervals. Select the latest interval control to return to the most recent data.
Use the timeline selector to move or resize the highlighted time range.
Changing the filters, data type, metric, or interval updates the detailed results.
Timeline Selector
The Timeline Selector shows the available data at a broader scale. Move or resize its highlighted section to focus the timeline on a window from 24 hours to 14 days.
Secondary Section
The sections below provide summary details of each of the dynamic tabs available for the various Endpoint views.
BSSID Table
BSSID
The base station ID (BSSID) or MAC address of the wireless access point serving the Endpoint Agent.
SSID
The service set identifier (SSID) of the wireless access point serving the Endpoint Agent.
Location
The location of the Endpoint Agent.
Number of Endpoints
The number of Endpoint Agents being served by the same wireless access point, determined by the number of agents with the same BSSID.
Phy Mode
Describes which IEEE 802.11 specification standard is being used for the wireless connection, related to coverage range and speed optimization.
Channel
The channel used for the wireless connection with the access point serving the Endpoint Agent.
Throughput
The sum of transmitted and received bytes, converted to bits and divided by the five-minute (300-second) Local Networks reporting interval. The displayed unit is bits per second (bps), scaled as needed (for example, kbps).
Retransmission Rate (%)
The wireless transmission rate for Endpoint Agent experiences.
Signal Quality (%)
The signal quality of the wireless connection, displayed as a percentage. A value of 0% implies an actual received signal strength indicator (RSSI) signal strength of -100 dBm. A value of 100% implies an actual RSSI signal strength of -50 dBm.
Roaming Events
The number of times the wireless access point serving the Endpoint Agent changes, measured by the number of times the BSSID of the connected network changes.
Channel Swap Events
The number of times the wireless channel changed for the connected access point.
Endpoint Table
Agent
Endpoint Agent performing measurements.
Location
The location of the Endpoint Agent.
SSID
The service set identifier (SSID) of the wireless access point serving the Endpoint Agent.
BSSID
The base station ID (BSSID) or MAC address of the wireless access point serving the Endpoint Agent.
Roaming Events
The number of times the wireless access point serving the Endpoint Agent changes, measured by the number of times the BSSID of the connected network changes.
Phy Mode
Describes which IEEE 802.11 specification standard is being used for the wireless connection, related to coverage range and speed optimization.
Channel
The channel used for the wireless connection with the access point serving the Endpoint Agent.
Channel Swap Events
The number of times the wireless channel changed for the connected access point.
Transmit Rate (Mbps)
The Endpoint Agent host's transmission rate as reported by the operating system's wireless subsystem.
Signal Quality (%)
The signal quality of the wireless connection, displayed as a percentage. A value of 0% implies an actual received signal strength indicator (RSSI) signal strength of -100 dBm. A value of 100% implies an actual RSSI signal strength of -50 dBm.
Throughput
The sum of transmitted and received bytes, converted to bits and divided by the five-minute (300-second) Local Networks reporting interval. The displayed unit is bits per second (bps), scaled as needed (for example, kbps).
Retransmission Rate (%)
The wireless transmission rate for Endpoint Agent experiences.
Map
The Map tab combines the selected metric with Endpoint Agent locations. Use the zoom controls or scroll to change the map scale.
The map shows metrics for the interval currently selected on the timeline. Use the previous and next interval controls to move between intervals, or select the latest interval control to return to the most recent data.
Hover over a location to view the agents and basic metrics at that location.
Network Topology
The Network Topology tab displays how Endpoint Agents are connected to their gateways, proxies, DNS servers, and VPN terminators.
Overview
The Overview tab provides the average user experience score for the selected interval, along with error, alert, and page speed data.
For more information on how the user experience score is calculated, see User Experience Score below.
Pages
The Pages tab provides a table of all visited sites for the selected interval.
Select a visited site to open its details.
The Page Details panel provides a more in-depth view of the details provided in the Pages tab. This panel is further divided into two sections:
Primary section
Secondary section
The primary section provides a graphical view of the network path towards the target site. In addition, it also provides the following Page Load details:
Response Time: Also known as time-to-first-byte, this is the time from the beginning of the request (before DNS request) until the client receives the first byte of the response from the web server.
Content Time: The time it takes (once the main request has started) for the browser to fully load the HTML and build the DOM tree. External resources like pictures and stylesheets might not be fully loaded now. The Content Time is calculated using the following formula:
[Timestamp when the DOM finished building] - [Timestamp when the main request started]Page Load Time: This maps to the load event triggered when the web page is fully loaded and initialized. Generally, the page load time is higher than the content time. The Page Load Time is calculated using the following formula:
[Timestamp when the page, including the resources it refers to, is completely loaded and initialized] - [Timestamp when the main request started]
The secondary section provides additional agent and connection information broken into dynamic tabs based on the available data:
Agent Info: Provides information about the operating system, platform, OS version, browser details, network configuration (IP address, DNS servers), manufacturer, model, and memory information.
Wireless Info: Provides information on the Endpoint Agent's wireless connection, including signal quality, noise (only for macOS devices), and transmission rate.
Path Trace: A complete hop-by-hop path, with delay measured from the host machine running the Endpoint Agent to the targeted domain at each hop. The path trace is obtained using ICMP. Gateway and proxy nodes along the path are also shown.
Redirects: A list of all redirect URLs encountered along the path, and the time each took.
Waterfall: Provides detailed information about each object on the selected page, including object name, response code, domain, size, and the time taken to load the object.
Path Visualization
The Path Visualization tab provides a graphical view of the network path, hop-by-hop, towards the target site.
Grouping
The Grouping dropdown can be used to configure the grouping of agents in visualization:
For more information on the path visualization, see Path Visualization.
Sessions
The Sessions tab provides a table of all user sessions for the selected interval. The view groups all pages visited during each session.
To view detailed information about a user session, select the row in the table to open the panel.
The session details panel provides a more in-depth view of the details provided in the Sessions tab. This panel is further divided into two sections:
Primary section
Secondary section
The primary section provides a graphical view of the network path towards the target site. In addition, it also provides the following Page Load details:
Response Time: Also known as time-to-first-byte, this is the time from the beginning of the request (before DNS request) until the client receives the first byte of the response from the web server.
Content Time: The time it takes (once the main request has started) for the browser to fully load the HTML and build the DOM tree. External resources like pictures and stylesheets might not be fully loaded at this time. The Content Time is calculated using the following formula:
[Timestamp when the DOM finished building] - [Timestamp when the main request started]Page Load Time: This maps to the load event triggered when the web page is fully loaded and initialized. Generally, the page load time is higher than the content time. The Page Load Time is calculated using the following formula:
[Timestamp when the page, including the resources it refers to, is completely loaded and initialized] - [Timestamp when the main request started]
The secondary section provides additional agent and connection information broken into dynamic tabs based on the available data:
Agent Info: Provides information about the operating system, platform, OS version, browser details, network configuration (IP address, DNS servers), manufacturer, model, and memory information.
Wireless Info: Provides information on the Endpoint Agent's wireless connection, including signal quality, noise, and transmission rate.
Path Trace: A complete hop-by-hop path, with delay measured at each hop from the host machine running the Endpoint Agent to the targeted domain. The path trace is obtained using ICMP. Gateway and proxy nodes along the path are also shown.
VPN: VPN details (if present), including hardware type, server/interface IP addresses, and DNS servers.
Redirects: A list of all redirect URLs encountered along the path, and the time each took.
Waterfall: Provides detailed information about each object on the selected page, including object name, response code, domain, size, and the time taken to load the object.
Table
The Table tab provides a breakdown of the metrics collected for the selected time interval.
Agent
Endpoint Agent performing measurements.
Date
The time and date when the agent performed the last measurement.
Connection
The type of connection (for example, wireless, ethernet, and so on) on which the agent is deployed.
SSID
The service set identifier (SSID) of the wireless access point serving the Endpoint Agent.
Channel
The channel used for the wireless connection with the access point serving the Endpoint Agent.
Phy Mode
Describes which IEEE 802.11 specification standard is being used for the wireless connection, related to coverage range and speed optimization.
Packet Loss (%)
End-to-end packet loss. The percentage of packets lost is calculated by subtracting the number of reply packets the agent receives from the target (responses) from the number of packets sent by the agent, then dividing by the number of packets sent, then multiplying by 100.
Latency
The average of the round-trip packet time. Round-trip packet time is the time from which a packet is sent by the agent to the time the agent receives a reply.
Jitter
The mean deviation of latency. The mean deviation represents how far, on average, all measurements are from the mean of the data.
Error Details
The detailed explanation for the error in connection.
TCP Connect
Indicates if the agent was able to successfully establish the TCP connection.
Grouping within the Table
As a single Dynamic Test can target multiple different destinations (IP addresses) within the same test (for example, Webex), you can group the data in the table tab by Agent or by Agent and IP addresses to make it easier to identify the specific destinations affected by an incident.
Additional Information
User Experience Score
The experience score rates a user's experience when loading a particular page. The score is calculated based on the time to load the DOM of a page, which is then mapped to a score based on our data set of load times. A score of 100 is the top score, 0 is the lowest score. An average experience is in the range of 44 to 89. Average (mean) experience scores can be displayed by Endpoint Agent, or by domain of pages visited.
The ThousandEyes experience score is based on formulas and values that are not all visible in the product. Generally speaking, the score depends on a correlation function of page availability and content speed. While direct validation from the platform view is not fully realizable from the endpoint display, some quantities are shown in the platform view. A detailed break down is shown below.
Experience Score
The experience score (ES) is determined by the following formula:
ES = max( 0, PAS - (100 - SS) )
The max function is to ensure that the experience score (ES) is always limited between 0 and 100.
The above formula allows future adding (or subtracting to be more accurate) impedances to the metric based on other factors (other than speed).
The experience score is defined per page.
PAS = Page availability score.
SS = Speed score.
Page Availability Score
The page availability score (PAS) is a binary score indicating the presence of one of the following errors during page load:
The server did not respond in time.
A browser error prevented the page from loading.
The server responded with an error (HTTP response code
4xxor5xx).The server responded successfully (HTTP response code
200) but there was a browser error (e.g., loading an error page instead of the expected one).Page load is successful otherwise.
If an error occurs, PAS = 0. Otherwise, PAS = 100.
Speed Score
The speed score is determined by the formula below:
SS = min( 0, 1 - ( ( Content Time + Redirect Time - X ) / Y ) ) )
Content Time: Displayed in ms on the left side of the endpoint view.
Redirect Time: Displayed in ms on the left side of the endpoint view. If it is 0 it is not shown.
X and Y are based on the OnContentLoad time thresholds which are not visible in the display based on a linear correlation coefficient:
Very Fast
: OnContentLoad <= 1s
→ SS = 100
→ SS = 100
Fast
: 1s < OnContentLoad <= 2s
→ 89 <= SS < 100
Average
: 2s < OnContentLoad <= 6s
→ SS = 100-100*(CT-1)/(10-1)
→ 44 <= SS < 89
Slow
: 6s < OnContentLoad <= 10s
→ 0 < SS < 44
Very Slow
: 10s < OnContentLoad
→ SS = 0
→ SS = 0
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