Alert Metrics Reference
The following tables (arranged by alert tab, then by alert type) define the metrics available to those alert types as well as the metrics' operator functions and units.
Cloud and Enterprise Agent Alerts
Alert Type: DNS Test Layer
DNS Server
Error
What, if any, errors occurred when the test was running.
is present, matches, does not match
DNS Server
Resolution Time
The time it takes to query a specific named server for the given domain.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
DNS Server
Mapping
The IP address a specified domain maps to. List can reflect IP addresses, CIDR blocks, or strings. Wildcards are supported for domains.
in, not in
DNS Trace
Error
What, if any, errors occurred when the test was running.
is present, matches, does not match
DNS Trace
Mapping
The IP address a specified domain maps to.
in, not in
DNSSEC
Error
What, if any, errors occurred when the test was running.
is present, matches, doesn't match
Alert Type: Network Test Layer
Agent to Agent
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.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Agent to Agent
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.
≤, ≥
%
Agent to Agent
Jitter
The mean deviation of latency. The mean deviation represents how far, on average, all measurements are from the mean of the data.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Agent to Agent
Throughput
This is the Wire Size divided by the Receive Time.
≥
kbps
Agent to Agent
Error
What, if any, errors occurred when the test was running.
is present, matches, doesn't match
Agent to Agent
DSCP
is, is not
Best Effort (DSCP 0), CS 1 (DSCP 8), AF 11 (DSCP 10), AF 12 (DSCP 12), AF 13 (DSCP 14), CS 2 (DSCP 16), AF 21 (DSCP 18), AF 22 (DSCP 20), AF 23 (DSCP 22), CS 3 (DSCP 24), AF 31 (DSCP 26), AF 32 (DSCP 28), AF 33 (DSCP 30), CS 4 (DSCP 32), AF 41 (DSCP 34), AF 42 (DSCP 36), AF 43 (DSCP 38), CS 5 (DSCP 40), Voice Admit (DSCP 44), EF (DSCP 46), CS 6 (DSCP 48), CS 7 (DSCP 56)
Agent to Server
Error
What, if any, errors occurred when the test was running.
is present, matches, does not match
Agent to Server
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.
≤, ≥
%
Agent to Server
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.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Agent to Server
Jitter
The mean deviation of latency. The mean deviation represents how far, on average, all measurements are from the mean of the data.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Agent to Server
Available Bandwidth
Total available bandwidth between source and destination measured in Mbps.
≤, ≥
Mbps
Agent to Server
Capacity
This represents an estimation of the link capacity in Mbps, also used to measure the available bandwidth as a subsequent step.
≤, ≥
Mbps
Agent to Server
Proxy Loss
The percentage of packets lost to the proxy.
≤, ≥
%
Agent to Server
Proxy Latency
The average of the round-trip time to the proxy. Round-trip packet time is the time from which a packet is sent by the agent to the time the agent receives a reply.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Agent to Server
Proxy Jitter
The mean deviation of proxy latency. The mean deviation represents how far, on average, all measurements are from the mean of the data.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Path Trace
Any Hop > Delay
Estimated minimum transmission delay across a given link. The value is calculated by finding the agent that reported the lowest response time for the node on the right-hand side of the link (the node further from the agent), then subtracting the same agent's lowest detected response time for the node on the left-hand side of the link (the node closer to the agent). When a single path trace from a single agent traverses the link, this metric is called Delay.
≤, ≥
ms
Path Trace
Any Hop > IP Address
An IP address is a unique address that identifies a device on the internet or a local network.
in, not in
Path Trace
Any Hop > ASN
Autonomous System Number assigned to a network prefix.
in, not in
Path Trace
Any Hop > rDNS
Reverse DNS (rDNS or RDNS) is a Domain Name Service (DNS) lookup of a domain name from an IP address.
in, not in
Path Trace
Any Hop > MPLS Label
Label associated with a given MultiProtocol Label Switching network.
in, not in
empty
Path Trace
Any Hop > DSCP
is, is not
Best Effort (DSCP 0), CS 1 (DSCP 8), AF 11 (DSCP 10), AF 12 (DSCP 12), AF 13 (DSCP 14), CS 2 (DSCP 16), AF 21 (DSCP 18), AF 22 (DSCP 20), AF 23 (DSCP 22), CS 3 (DSCP 24), AF 31 (DSCP 26), AF 32 (DSCP 28), AF 33 (DSCP 30), CS 4 (DSCP 32), AF 41 (DSCP 34), AF 42 (DSCP 36), AF 43 (DSCP 38), CS 5 (DSCP 40), Voice Admit (DSCP 44), EF (DSCP 46), CS 6 (DSCP 48), CS 7 (DSCP 56)
Path Trace
No Hop > Delay
Estimated minimum transmission delay across a given link. The value is calculated by finding the agent that reported the lowest response time for the node on the right-hand side of the link (the node further from the agent), then subtracting the same agent's lowest detected response time for the node on the left-hand side of the link (the node closer to the agent). When a single path trace from a single agent traverses the link, this metric is called Delay.
≤, ≥
ms
Path Trace
No Hop > IP Address
An IP address is a unique address that identifies a device on the internet or a local network.
in, not in
Path Trace
No Hop > ASN
Autonomous System Number assigned to a network prefix.
in, not in
Path Trace
No Hop > rDNS
Reverse DNS (rDNS or RDNS) is a Domain Name Service (DNS) lookup of a domain name from an IP address.
in, not in
Path Trace
No Hop > MPLS Label
Label associated with a given MultiProtocol Label Switching network.
is, is not
empty
Path Trace
No Hop > DCSP
is, is not
Best Effort (DSCP 0), CS 1 (DSCP 8), AF 11 (DSCP 10), AF 12 (DSCP 12), AF 13 (DSCP 14), CS 2 (DSCP 16), AF 21 (DSCP 18), AF 22 (DSCP 20), AF 23 (DSCP 22), CS 3 (DSCP 24), AF 31 (DSCP 26), AF 32 (DSCP 28), AF 33 (DSCP 30), CS 4 (DSCP 32), AF 41 (DSCP 34), AF 42 (DSCP 36), AF 43 (DSCP 38), CS 5 (DSCP 40), Voice Admit (DSCP 44), EF (DSCP 46), CS 6 (DSCP 48), CS 7 (DSCP 56)
Path Trace
Hop # (source/destination) > Delay
Estimated minimum transmission delay across a given link. The value is calculated by finding the agent that reported the lowest response time for the node on the right-hand side of the link (the node further from the agent), then subtracting the same agent's lowest detected response time for the node on the left-hand side of the link (the node closer to the agent). When a single path trace from a single agent traverses the link, this metric is called Delay.
≤, ≥
ms
Path Trace
Hop # (source/destination) > IP Address
An IP address is a unique address that identifies a device on the internet or a local network.
in, not in
Path Trace
Hop # (source/destination) > ASN
Autonomous System Number assigned to a network prefix.
in, not in
Path Trace
Hop # (source/destination) > rDNS
Reverse DNS (rDNS or RDNS) is a Domain Name Service (DNS) lookup of a domain name from an IP address.
in, not in
Path Trace
Hop # (source/destination) > MPLS Label
Label associated with a given MultiProtocol Label Switching network.
is, is not
empty
Path Trace
Hop # (source/destination) > DSCP
is, is not
Best Effort (DSCP 0), CS 1 (DSCP 8), AF 11 (DSCP 10), AF 12 (DSCP 12), AF 13 (DSCP 14), CS 2 (DSCP 16), AF 21 (DSCP 18), AF 22 (DSCP 20), AF 23 (DSCP 22), CS 3 (DSCP 24), AF 31 (DSCP 26), AF 32 (DSCP 28), AF 33 (DSCP 30), CS 4 (DSCP 32), AF 41 (DSCP 34), AF 42 (DSCP 36), AF 43 (DSCP 38), CS 5 (DSCP 40), Voice Admit (DSCP 44), EF (DSCP 46), CS 6 (DSCP 48), CS 7 (DSCP 56)
Path Trace
Last Hop > Delay
Estimated minimum transmission delay across a given link. The value is calculated by finding the agent that reported the lowest response time for the node on the right-hand side of the link (the node further from the agent), then subtracting the same agent's lowest detected response time for the node on the left-hand side of the link (the node closer to the agent). When a single path trace from a single agent traverses the link, this metric is called Delay.
≤, ≥
ms
Path Trace
Last Hop > IP Address
An IP address is a unique address that identifies a device on the internet or a local network.
in, not in
Path Trace
Last Hop > ASN
Autonomous System Number assigned to a network prefix.
in, not in
Path Trace
Last Hop > rDNS
Reverse DNS (rDNS or RDNS) is a Domain Name Service (DNS) lookup of a domain name from an IP address.
in, not in
Path Trace
Last Hop > MPLS Label
Label associated with a given MultiProtocol Label Switching network.
is, is not
empty
Path Trace
Last Hop > DSCP
is, is not
Best Effort (DSCP 0), CS 1 (DSCP 8), AF 11 (DSCP 10), AF 12 (DSCP 12), AF 13 (DSCP 14), CS 2 (DSCP 16), AF 21 (DSCP 18), AF 22 (DSCP 20), AF 23 (DSCP 22), CS 3 (DSCP 24), AF 31 (DSCP 26), AF 32 (DSCP 28), AF 33 (DSCP 30), CS 4 (DSCP 32), AF 41 (DSCP 34), AF 42 (DSCP 36), AF 43 (DSCP 38), CS 5 (DSCP 40), Voice Admit (DSCP 44), EF (DSCP 46), CS 6 (DSCP 48), CS 7 (DSCP 56)
Path Trace
Target IP Address
The IP Address a given test is targeting as determined by the DNS lookup if the test does not specify a specific IP Address.
in, not in
Path Trace
Server MSS
Maximum Segment Size accepted by the server.
<, >
bytes
Path Trace
Path MTU
The maximum transmission unit (MTU) found on a given path.
<, >
bytes
Path Trace
Path Length
Total number of hops of the path from source to target.
<, >
hops
Path Trace
Trace is incomplete
Path does not reach its destination.
Alert Type: Voice Test Layer
RTP Stream
Error
What, if any, errors occurred when the test was running.
is present, matches, does not match
RTP Stream
MOS
A number indicative of the perceived voice call quality.
≤, ≥
RTP Stream
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.
≤, ≥
%
RTP Stream
Discards
UDP packets arriving too late and thus discarded.
≤, ≥
%
RTP Stream
DSCP
is, is not
Best Effort (DSCP 0), CS 1 (DSCP 8), AF 11 (DSCP 10), AF 12 (DSCP 12), AF 13 (DSCP 14), CS 2 (DSCP 16), AF 21 (DSCP 18), AF 22 (DSCP 20), AF 23 (DSCP 22), CS 3 (DSCP 24), AF 31 (DSCP 26), AF 32 (DSCP 28), AF 33 (DSCP 30), CS 4 (DSCP 32), AF 41 (DSCP 34), AF 42 (DSCP 36), AF 43 (DSCP 38), CS 5 (DSCP 40), Voice Admit (DSCP 44), EF (DSCP 46), CS 6 (DSCP 48), CS 7 (DSCP 56)
RTP Stream
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.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
RTP Stream
Packet Delay Variation
The average variation in unidirectional delay for packets reaching the destination.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
SIP Server
Error Type
A string from list of valid error types.
is, is not
Any, None, DNS, Connect, Register, Options, Invite, Server
SIP Server
Response Code
The HTTP status code returned by the agent when fetching the URL.
is, is not
any error (≥ 400 or no response), OK (2xx), redirect (3xx), client error (4xx), server error (5xx), global error (6xx), custom code
SIP Server
DNS Time
The time required for the agent to perform a DNS resolution of the hostname in the URL.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
SIP Server
Connect Time
The time required to establish a TCP connection with the web server.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
SIP Server
Register Time
The time it takes to register with the SIP target
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
SIP Server
Options Time
The time required to negotiate what options will be used in the new connection
Dynamic (sensitivity)
Static (≥)
sensitivity
ms
SIP Server
Invite Time
How long the SIP invite handshake took.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
SIP Server
Wait Time
The time elapsed between the completion of sending the HTTP request and the time the agent receives the first byte of the response from the web server.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
SIP Server
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.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
SIP Server
Total Time
Time to perform the test, including DNS, Connect (when using TCP protocol), Redirects (if any), Register and Options phases of the test.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Alert Type: Web Test Layer
API
API Transaction Time
The total time taken by all of the API calls that run sequentially in an API test, averaged across each agent.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
API
API Completion
A percentage value indicating the number of API calls that succeeded in the selected test round.
≤, ≥
%
API
Any Step > API Call Time
Total time the API Step took to complete.
≤, ≥
ms
API
Any Step > Step Completion
Has a given API Test step completed.
completed, not completed
API
Any Step > 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.
≤, ≥, auto
ms
API
Any Step > Receive Time
The time elapsed receiving the response from the server (time from first byte to last byte of payload).
≤, ≥
ms
API
Any Step > Assert Error
Text returned by a Transaction or API assert error.
is present
API
Specific Step (Name, Step #) > API Call Time
Total time the API Step took to complete
≤, ≥
ms
API
Specific Step (Name, Step #) > Step Completion
Has a given API Test step completed.
completed, not completed
API
Specific Step (Name, Step #) > 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.
Auto, ≤, ≥
ms
API
Specific Step (Name, Step #) > Receive Time
The time elapsed receiving the response from the server (time from first byte to last byte of payload).
≤, ≥
ms
API
Specific Step (Name, Step #) > Assert Error
Text returned by a Transaction or API assert error.
is present
FTP Server
Error Type
A string from list of valid error types.
is, is not
Any, None, DNS, Connect, SSL, Negotiation, Transfer, FTP, Content
FTP Server
Reply Code
HTTP response code returned by the target.
is, is not
any error (≥ 400 or no response), OK (2xx), temporary failure (4xx), permanent failure (5xx), custom code
FTP Server
DNS Time
The time required for the agent to perform a DNS resolution of the hostname in the URL.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
Connect Time
The time required to establish a TCP connection with the web server
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
SSL Negotiation Time
The time required to negotiate SSL/TLS.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
FTP Negotiation Time
Beginning after Connect, up to the time the FTP upload, download or list command is issued (includes login).
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
Wait Time
The time elapsed between the completion of sending the HTTP request and the time the agent receives the first byte of the response from the web server.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
Transfer Time
The time taken to transmit all bytes of the transfer.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
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.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
Total Time
Time to perform the test, including DNS, Connect (when using TCP protocol), Redirects (if any), Register and Options phases of the test.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
FTP Server
Throughput
This is the Wire Size divided by the Receive Time.
≤, ≥
kbps
HTTP Server
Error
What, if any, errors occurred when the test was running.
is present, matches, does not match
HTTP Server
Error Type
A string from list of valid error types.
is, is not
Any, None, DNS, Connect, SSL, Send, Receive, SSL, Content
HTTP Server
Response Code
The HTTP status code returned by the agent when fetching the URL.
is, is not
any error (≥ 400 or no response), OK (2xx), redirect (3xx), client error (4xx), server error (5xx), custom code
HTTP Server
Response Header
Text match for response headers.
matches, doesn't match
HTTP Server
Client SSL Alert Code
OpenSSL SSL error code.
is, is not
N/A, Unexpected Message (10), Bad Record MAC (20), Decryption Failed (21), Record Overflow (22), Decompression Failure (30), Handshake Failure (40), No Certificate (41), Bad Certificate (42), Unsupported Certificate (43), Certificate Revoked (44), Certificate Expired (45), Certificate Unknown (46), Illegal Parameter (47), Unknown CA (48), Access Denied (49), Decode Error (50), Decrypt Error (51), Export Restriction (60), Protocol Version (70), Insufficient Security (71), Internal Error (80), User Canceled (90), No Renegotiation (100), Unsupported Extension (110), Certificate Unobtainable (111), Unrecognized Name (112), Bad Certificate Status Response (113), Bad Certificate Hash Value (114), Unknown PSK Identity (115)
HTTP Server
Server SSL Alert Code
OpenSSL SSL error code.
is, is not
N/A, Unexpected Message (10), Bad Record MAC (20), Decryption Failed (21), Record Overflow (22), Decompression Failure (30), Handshake Failure (40), No Certificate (41), Bad Certificate (42), Unsupported Certificate (43), Certificate Revoked (44), Certificate Expired (45), Certificate Unknown (46), Illegal Parameter (47), Unknown CA (48), Access Denied (49), Decode Error (50), Decrypt Error (51), Export Restriction (60), Protocol Version (70), Insufficient Security (71), Internal Error (80), User Canceled (90), No Renegotiation (100), Unsupported Extension (110), Certificate Unobtainable (111), Unrecognized Name (112), Bad Certificate Status Response (113), Bad Certificate Hash Value (114), Unknown PSK Identity (115)
HTTP Server
Certificate
The number of days before certificate expiry the alert should trigger.
Expires within
days
HTTP Server
Connect Time
The time required to establish a TCP connection with the web server.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
HTTP Server
DNS Time
The time required for the agent to perform a DNS resolution of the hostname in the URL.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
HTTP Server
SSL Negotiation Time
The time required to negotiate SSL/TLS.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
HTTP Server
Wait Time
The time elapsed between the completion of sending the HTTP request and the time the agent receives the first byte of the response from the web server.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
HTTP Server
Receive Time
The time elapsed receiving the response from the server (time from first byte to last byte of payload).
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
HTTP Server
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.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
HTTP Server
Total Time
Time to perform the test, including DNS, Connect (when using TCP protocol), Redirects (if any), Register and Options phases of the test.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
HTTP Server
Throughput
This is the Wire Size divided by the Receive Time.
≤, ≥
kbps
HTTP Server
Redirect Count
Number of redirects from the target page.
≤, ≥
HTTP Server
Total Wire Size
The size of all the objects in the page while in transmission. Often, HTTP responses are compressed prior to transmission, so wire size may be less than actual size if any objects are compressed by the server.
<, >
kB
HTTP Server
SSL Version
Sends an alert if the SSL version used is in the defined list. Multiple versions can be selected at once.
in, not in
HTTP Server
Cipher Suite
The cipher suite used in SSL/TLS connections. ThousandEyes uses the OpenSSL naming convention for cipher suites, which is different from the IANA naming convention.
not in, is weak
Page Load
Page Load
Was the page successfully loaded.
has error, timed out, incomplete
Page Load
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.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Page Load
Total Wire Size
The size of all the objects in the page while in transmission. Often, HTTP responses are compressed prior to transmission, so wire size may be less than actual size if any objects are compressed by the server.
<, >
kB
Page Load
DOM Load Time
Also known as time-to-interaction, the time required for the browser to build the Document Object Model for the page, which is the skeleton of the page, not including images
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Page Load
Page Load Time
This maps to the load event triggered when the web page is fully loaded. Generally, the Page Load time is higher than the DOM Load time.
Dynamic (sensitivity)
Static (≥)
low, medium, high
ms
Page Load
Error Count
Number of component errors.
≤, ≥
Page Load
Any Component > Domain
A domain name.
in, not in
Page Load
Any Component > Total Time
Time to perform the test, including DNS, Connect (when using TCP protocol), Redirects (if any), Register and Options phases of the test.
≤, ≥
ms
Page Load
Any Component > Blocked Time
The time an HTTP request waits for system resources to become available that are needed to make a connection to a web server. The most common reason for significant blocking time is the per-domain concurrent connection limit.
≤, ≥
ms
Page Load
Any Component > DNS Time
The time required for the agent to perform a DNS resolution of the hostname in the URL.
≤, ≥
ms
Page Load
Any Component > Connect Time
The time required to establish a TCP connection with the web server.
≤, ≥
ms
Page Load
Any Component > Wait Time
The time elapsed between the completion of sending the HTTP request and the time the agent receives the first byte of the response from the web server.
≤, ≥
ms
Page Load
Any Component > Receive Time
The time elapsed receiving the response from the server (time from first byte to last byte of payload).
≤, ≥
ms
Page Load
Any Component > SSL Negotiation Time
The time required to negotiate SSL/TLS.
≤, ≥
ms
Page Load
Any Component > Component Load
Was the component load completed successfully.
is incomplete
Transaction
Any Page (all, any) > Page Load Time
This maps to the load event triggered when the web page is fully loaded. Generally, the Page Load time is higher than the DOM Load time.
≤, ≥
ms
Transaction
Any Page (all, any) > Page Load Error
When the page load has a component error.
is present, matches
Transaction
Any Page (all, any) > 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.
≤, ≥
ms
Transaction
Any Page (all, any) > DOM Load Time
Also known as time-to-interaction, the time required for the browser to build the Document Object Model for the page, which is the skeleton of the page, not including images.
≤, ≥
ms
Transaction
Page (URL, Host, Page #) > Page Load Time
This maps to the load event triggered when the web page is fully loaded. Generally, the Page Load time is higher than the DOM Load time.
≤, ≥
ms
Transaction
Page (URL, Host, Page #) > Page Load Error
When the page load has a component error.
is present, matches
Transaction
Page (URL, Host, Page #) > 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.
≤, ≥
ms
Transaction
Page (URL, Host, Page #) > DOM Load Time
Also known as time-to-interaction, the time required for the browser to build the Document Object Model for the page, which is the skeleton of the page, not including images.
≤, ≥
ms
Transaction
Marker (name)
Text name specified in a Transaction Test to document when test stages start and stop.
is present, is not present, duration (≤, ≥)
For duration: ms
Transaction
Assert Error
Text returned by a Transaction or API assert error.
is present, matches, does not match
Transaction
Transaction Time
The time taken to execute the transaction, counting from the initial step until the final step.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Transaction
Transaction Completion
Each web transaction has an initial and final step that can be configured by the user. Completion refers to the fraction of transaction steps that are executed between the initial and final steps
is finished, has error, has internal error, timed out
Transaction
Error
What, if any, errors occurred when the test was running
matches, is present, does not match
Transaction (Classic)
Error
What, if any, errors occurred when the test was running
matches, is present, does not match
Transaction (Classic)
Transaction Time
The time taken to execute the transaction, counting from the initial step until the final step.
≤, ≥
ms
Transaction (Classic)
Completion
≤, ≥
%
Transaction (Classic)
Steps Completed
Has a given API Test step complete
≤, ≥, is
Transaction (Classic)
Any Step (all, any) > Step Duration
≤, ≥
ms
Transaction (Classic)
Step # (all, any) > Step Duration
≤, ≥
ms
Transaction (Classic)
Any Page (all, any) > Page Duration
≤, ≥
ms
Transaction (Classic)
Page # (all, any) > Page Duration
≤, ≥
ms
Endpoint Agent Alerts
Alert Type: Real User Tests
Application
Connection Failures Count
The count of TCP connection failures across agents running the test.
≤, ≥
Application
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
≤, ≥
ms
Application
Error Count
Number of component errors
≤, ≥
Application
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 dataset of load times
≤, ≥
%
Application
Jitter
The mean deviation of latency. The mean deviation represents how far, on average, all measurements are from the mean of the data.
≤, ≥
ms
Application
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.
≤, ≥
ms
Application
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
≤, ≥
%
Application
Page Load Time
This maps to the load event triggered when the web page is fully loaded. Generally, the Page Load time is higher than the DOM Load time.
≤, ≥
ms
Application
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.
≤, ≥
ms
Application
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 (decibel-milliwatts). A value of 100% implies an actual RSSI signal strength of -50 dBm.
≤, ≥
%
Endpoint
Connection Failures Count
The count of TCP connection failures across Agents running the test
≤, ≥
Endpoint
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
≤, ≥
ms
Endpoint
CPU Utilization
Windows-based Endpoint Agents submit collected CPU usage metrics
≤, ≥
%
Endpoint
Error Count
Number of component errors
≤, ≥
Endpoint
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 dataset of load times
≤, ≥
%
Endpoint
Jitter
The mean deviation of latency. The mean deviation represents how far, on average, all measurements are from the mean of the data.
≤, ≥
ms
Endpoint
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
≤, ≥
ms
Endpoint
Memory Load
Windows-based Endpoint Agents submit collected memory usage metrics
≤, ≥
%
Endpoint
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
≤, ≥
%
Endpoint
Page Load Time
This maps to the load event triggered when the web page is fully loaded. Generally, the Page Load time is higher than the DOM Load time.
≤, ≥
ms
Endpoint
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.
≤, ≥
%
Alert Type: Scheduled Tests
Endpoint End-to-End (Server)
CPU Utilization
Windows-based Endpoint Agents submit collected CPU Usage metrics.
≤, ≥
%
Endpoint End-to-End (Server)
Error
What, if any, errors occurred when the test was running.
is present, matches, does not match
Endpoint End-to-End (Server)
Jitter
The mean deviation of latency. The mean deviation represents how far, on average, all measurements are from the mean of the data.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint End-to-End (Server)
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.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint End-to-End (Server)
Memory Load
Windows-based Endpoint Agents submit collected Memory usage metrics.
≤, ≥
%
Endpoint End-to-End (Server)
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.
≤, ≥
%
Endpoint Path Trace
Any Hop > ASN
Autonomous System Number assigned to a network prefix.
in, not in
Endpoint Path Trace
Any Hop > Delay
Estimated minimum transmission delay across a given link. The value is calculated by finding the agent that reported the lowest response time for the node on the right-hand side of the link (the node further from the agent), then subtracting the same agent's lowest detected response time for the node on the left-hand side of the link (the node closer to the agent). When a single path trace from a single agent traverses the link, this metric is called Delay.
≤, ≥
ms
Endpoint Path Trace
Any Hop > IP Address
An IP address is a unique address that identifies a device on the internet or a local network.
in, not in
Endpoint Path Trace
Any Hop > MPLS Label
Label associated with a given MultiProtocol Label Switching network.
is, is not
empty
Endpoint Path Trace
Any Hop > rDNS
Reverse DNS (rDNS or RDNS) is a Domain Name Service (DNS) lookup of a domain name from an IP address.
in, not in
Endpoint Path Trace
Hop # (source/destination) > ASN
Autonomous System Number assigned to a network prefix.
in, not in
Endpoint Path Trace
Hop # (source/destination) > Delay
Estimated minimum transmission delay across a given link. The value is calculated by finding the agent that reported the lowest response time for the node on the right-hand side of the link (the node further from the agent), then subtracting the same agent's lowest detected response time for the node on the left-hand side of the link (the node closer to the agent). When a single path trace from a single agent traverses the link, this metric is called Delay.
≤, ≥
ms
Endpoint Path Trace
Hop # (source/destination) > IP Address
An IP address is a unique address that identifies a device on the internet or a local network.
in, not in
Endpoint Path Trace
Hop # (source/destination) > MPLS Label
Label associated with a given MultiProtocol Label Switching network.
is, is not
empty
Endpoint Path Trace
Hop # (source/destination) > rDNS
Reverse DNS (rDNS or RDNS) is a Domain Name Service (DNS) lookup of a domain name from an IP address.
in, not in
Endpoint Path Trace
Path Length
Total number of hops of the path from source to target.
<, >
hops
Endpoint Path Trace
Target IP Address
The IP Address a given test is targeting as determined by the DNS lookup if the test does not specify a specific IP Address.
in, not in
Endpoint Path Trace
Trace is Incomplete
Path does not reach its destination.
Endpoint HTTP Server
Client SSL Alert Code
OpenSSL SSL error code.
is, is not
N/A, Unexpected Message (10), Bad Record MAC (20), Decryption Failed (21), Record Overflow (22), Decompression Failure (30), Handshake Failure (40), No Certificate (41), Bad Certificate (42), Unsupported Certificate (43), Certificate Revoked (44), Certificate Expired (45), Certificate Unknown (46), Illegal Parameter (47), Unknown CA (48), Access Denied (49), Decode Error (50), Decrypt Error (51), Export Restriction (60), Protocol Version (70), Insufficient Security (71), Internal Error (80), User Canceled (90), No Renegotiation (100), Unsupported Extension (110), Certificate Unobtainable (111), Unrecognized Name (112), Bad Certificate Status Response (113), Bad Certificate Hash Value (114), Unknown PSK Identity (115)
Endpoint HTTP Server
Connect Time
The time required to establish a TCP connection with the web server.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint HTTP Server
DNS Time
The time required for the agent to perform a DNS resolution of the hostname in the URL.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint HTTP Server
Error
What, if any, errors occurred when the test was running.
matches, does not match, is present
Endpoint HTTP Server
Error Type
A string from list of valid error types.
is, is not
Any, None, DNS, Connect, SSL, Send, Receive, HTTP, Content
Endpoint HTTP Server
Receive Time
The time elapsed receiving the response from the server (time from first byte to last byte of payload).
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint HTTP Server
Redirect Count
Number of redirects from the target page.
≤, ≥
Endpoint HTTP Server
Response Code
The HTTP status code returned by the agent when fetching the URL.
is, is not
any error (≥ 400 or no response), OK (2xx), redirect (3xx), client error (4xx), server error (5xx), custom code
Endpoint HTTP Server
Response Headers
Text match for response headers.
matches, does not match
Endpoint HTTP Server
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.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint HTTP Server
Server SSL Alert Code
OpenSSL SSL error code.
is, is not
N/A, Unexpected Message (10), Bad Record MAC (20), Decryption Failed (21), Record Overflow (22), Decompression Failure (30), Handshake Failure (40), No Certificate (41), Bad Certificate (42), Unsupported Certificate (43), Certificate Revoked (44), Certificate Expired (45), Certificate Unknown (46), Illegal Parameter (47), Unknown CA (48), Access Denied (49), Decode Error (50), Decrypt Error (51), Export Restriction (60), Protocol Version (70), Insufficient Security (71), Internal Error (80), User Canceled (90), No Renegotiation (100), Unsupported Extension (110), Certificate Unobtainable (111), Unrecognized Name (112), Bad Certificate Status Response (113), Bad Certificate Hash Value (114), Unknown PSK Identity (115)
Endpoint HTTP Server
SSL Negotiation Time
The time required to negotiate SSL/TLS.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint HTTP Server
Throughput
This is the Wire Size divided by the Receive Time.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint HTTP Server
Total Time
Time to perform the test, including DNS, Connect (when using TCP protocol), Redirects (if any), Register and Options phases of the test.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
Endpoint HTTP Server
Total Wire Size
The size of all the objects in the page while in transmission. Often, HTTP responses are compressed prior to transmission, so wire size may be less than actual size if any objects are compressed by the server.
<, >
kB
Endpoint HTTP Server
Wait Time
The time elapsed between the completion of sending the HTTP request and the time the agent receives the first byte of the response from the web server.
Dynamic (sensitivity)
Static (≤, ≥)
low, medium, high
ms
BGP Routing Alerts
Alert Type: Routing Test Layer
Reachability
The percentage of time during a round (currently 1 minute) in which the BGP router had a route to reach the destination prefix.
<, >
%
Path Changes
The number of AS path changes during a round. If a route is withdrawn and re-announced, it counts as 2 changes.
<, >
changes
Prefix
A number that identifies the network portion of an IP address.
in, not in
comma-separated list of covered prefixes
Covered Prefix
Sub-prefixes contained in a specific prefix.
exists, in, not in
BGP Origin > ASN
The ASN in which the target IP resides.
not in, in
Any BGP Hop > ASN
Are any BGP ASNs found in a route.
not in, in
No BGP Hop > ASN
Are any BGP ASNs found in a route.
not in, in
BGP Hop # (origin, monitor) > ASN
Test the ASN of a specific BGP hop.
not in, in
RPKI Status
the validation result of a BGP route based on the Resource Public Key Infrastructure (RPKI) system, indicating whether the advertised route origin is authorized by the correct Autonomous System (AS) number
is
Valid, Invalid, NotFound
Only BGP routing tests provide covered prefix data. Do not assign a BGP alert rule with a covered prefix metric to a non-BGP test type that has BGP path visualization measurements enabled. For non-BGP test types, use an alert rule that does not include the covered prefix metric, and if needed create a separate BGP test and an a separate alert rule with the covered prefix metric.
Device Alerts
Device
Any interface
Throughput (either, in, out)
This is the Wire Size divided by the Receive Time.
≥, >, ≤, <
Mbps, bps, kbps, %
Device
Any interface
Discards (either, in, out)
UDP packets arriving too late and thus discarded.
≥, >, ≤, <)
pps, %
Device
Any Interface
Errors (either, in, out)
SNMP interface errors.
≥, >, ≤, <
pps, %
Device
Any Interface
Discards and Errors (either, in, out)
SNMP reported discards and errors.
≥, >, ≤, <
pps, %
Device
Any Interface
Operational Status
SNMP reported interface operational status.
Offline, Online
Device
Any Interface
Admin Status
SNMP reported interface admin status.
Disabled, Enabled
Device
Any Interface
State
SNMP reported interface state.
Unchanged, Changed
Device
Any Interface Matching
Interface Name (matches, doesn't match)
Throughput (either, in, out)
This is the Wire Size divided by the Receive Time.
≥, >, ≤, <
Mbps, bps, kbps, %
Device
Any Interface Matching
Interface Name (matches, doesn't match)
Discards (either, in, out)
UDP packets arriving too late and thus discarded.
≥, >, ≤, <)
pps, %
Device
Any Interface Matching
Interface Name (matches, doesn't match)
Errors (either, in, out)
SNMP interface errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Interface Name (matches, doesn't match)
Discards and Errors (either, in, out)
SNMP reported discards and errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Interface Name (matches, doesn't match)
Operational Status
SNMP reported interface operational status.
Online, Offline
Device
Any Interface Matching
Interface Name (matches, doesn't match)
Admin Status
SNMP reported interface admin status.
Disabled, Enabled
Device
Any Interface Matching
Interface Name (matches, doesn't match)
State
SNMP reported interface state.
Changed, Unchanged
Device
Any Interface Matching
Interface type
Throughput (either, in, out)
This is the Wire Size divided by the Receive Time.
≥, >, ≤, <
Mbps, bps, kbps, %
Device
Any Interface Matching
Interface type
Discards (either, in, out)
UDP packets arriving too late and thus discarded.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Interface type
Errors (either, in, out)
SNMP interface errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Interface type
Discards and Errors (either, in, out)
SNMP reported discards and errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Interface type
Operational status
SNMP reported interface operational status.
Offline, Online
Device
Any Interface Matching
Interface type
Admin status
SNMP reported interface admin status.
Disabled, Enabled
Device
Any Interface Matching
Interface type
State
SNMP reported interface state.
Changed, Unchanged
Device
Any Interface Matching
Excludes interfaces
Throughput (either, in, out)
This is the Wire Size divided by the Receive Time.
≥, >, ≤, <
Mbps, bps, kbps, %
Device
Any Interface Matching
Excludes interfaces
Discards (either, in, out)
UDP packets arriving too late and thus discarded.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Excludes interfaces
Errors (either, in, out)
SNMP interface errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Excludes interfaces
Discards and Errors (either, in, out)
SNMP reported discards and errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
Excludes interfaces
Operational status
SNMP reported interface operational status.
Offline, Online
Device
Any Interface Matching
Excludes interfaces
Admin Status
SNMP reported interface admin status.
Disabled, Enabled
Device
Any Interface Matching
Excludes interfaces
State
SNMP reported interface state.
Unchanged, Changed
Device
Any Interface Matching
IP address
Throughput (either, in, out)
This is the Wire Size divided by the Receive Time.
≥, >, ≤, <
Mbps, bps, kbps, %
Device
Any Interface Matching
IP address
Discards (either, in, out)
UDP packets arriving too late and thus discarded.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
IP address
Errors (either, in, out)
SNMP interface errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
IP address
Discards and Errors (either, in, out)
SNMP reported discards and errors.
≥, >, ≤, <
pps, %
Device
Any Interface Matching
IP address
Operational status
SNMP reported interface operational status.
Offline, Online
Device
Any Interface Matching
IP address
Admin status
SNMP reported interface admin status.
Disabled, Enabled
Device
Any Interface Matching
IP address
State
SNMP reported interface state.
Changed, Unchanged
Interface
Throughput
This is the Wire Size divided by the Receive Time.
either, in, out (≥, >, ≤, <)
Mbps, bps,kbps, %
Interface
Discards
UDP packets arriving too late and thus discarded.
either, in, out (≥, >, ≤,<)
pps, %
Interface
Errors
SNMP interface errors.
either, in, out (≥, >, ≤, <)
pps, %
Interface
Discards and Errors
SNMP reported discards and errors.
either, in, out (≥, >, ≤, <)
pps, %
Interface
State
SNMP reported interface state.
Changed, Ucnchanged
Internet Insights Alerts
Application Outage
Affected Tests Count
Number of tests detecting an outage.
≤, ≥
Application Outage
Affected Domains
The domains detected in an outage.
in, not in
Application Outage
Affected Servers Count
Number of servers detecting an outage.
≤, ≥
Application Outage
Affected Applications
The applications detected in an outage.
in, not in
Application Outage
ASN
Autonomous System Number assigned to a network prefix.
in, not in
Application Outage
Outage Error Type
Error type detected in an outage.
in, not in
Application Outage
Server Locations
Server locations detected in an outage.
in, not in
Application Outage
Server Locations Count
Total server locations detected in an outage.
≤, ≥
Network Outage
Affected Tests Count
Number of tests detecting an outage.
≤, ≥
Network Outage
Affected Interfaces Count
Count of network interfaces detected in an outage.
≤, ≥
Network Outage
Affected Locations Count
Count of locations detected in an outage.
≤, ≥
Network Outage
Affected Domains
The domains detected in an outage.
in, not in
Network Outage
Locations
Locations detected in an outage.
in, not in
Network Outage
ASN
Autonomous System Number assigned to a network prefix.
in, not in
WAN Insights Alerts
WAN Insights Quality
App Group
Application categories or classes are bundles of applications with similar traffic characteristics.
in, not in
WAN Insights Quality
Number of Users
Minimum/maximum number of active users on a site in order for it to be considered.
≤, ≥
WAN Insights Quality
Percentage
Site quality itself, expressed as a percentage.
≤, ≥
%
WAN Insights Quality
Site ID
Use to restrict alerting to a particular site or set of sites.
in, not in
WAN Insights Capacity
Hostname
Use to focus on capacity conditions involving a particular hostname.
in, not in
WAN Insights Capacity
Interfaces
Choose one or more interfaces from the drop-down list with check boxes.
in, not in
WAN Insights Capacity
Percentile
Use to exclude outliers from your capacity alerts. Outliers represent conditions that may occasionally cause saturation events, but are not indicative of the most frequent or prevailing patterns of capacity utilization.
≤, ≥, <, >
%
Cloud Insights Alerts
Traffic Flow
Connections Per Second
Sum of new TCP connections.
≤, ≥
cps
Traffic Flow
Inside Cloud Throughput
The traffic throughput to remote endpoints that are within (inside) of your integrated/monitored AWS accounts.
≤, ≥
Gbps, Mbps, Kbps
Traffic Flow
Outside Cloud Throughput
The traffic throughput to remote endpoints that are outside of your monitored AWS accounts (could be outside of AWS or in AWS but not monitored). Throughput filtered by the first node within the topology.
≤, ≥
Gbps, Mbps, Kbps
Traffic Flow
Rejected Throughput
Sum of VPC Reject Actions.
≤, ≥
Gbps, Mbps, Kbps
Traffic Flow
Total Throughput
Sum of VPC Accept Actions for traffic going to or coming from outside your provider. Limited to traffic going through the test ingress point in your provider.
≤, ≥
Gbps, Mbps, Kbps
Traffic Insights Alerts
Alert Type: Traffic Flow
Devices (for all interfaces and properties)
Connections Per Second
The total number of connections per second
≤, ≥
cps
Devices (for all interfaces and properties)
Egress Throughput
The volume of traffic leaving your device
≤, ≥
Gbps, Mbps, Kbps
Devices (for all interfaces and properties)
Ingress Throughput
The volume of traffic entering your device
≤, ≥
Gbps, Mbps, Kbps
Devices (for all interfaces and properties)
Total Throughput
The total volume of traffic running through your device
≤, ≥
Gbps, Mbps, Kbps
Applications, Subnet Tags, Geolocations
Connections Per Second
The total number of connections per second
≤, ≥
cps
Applications, Subnet Tags, Geolocations
Egress Throughput
The volume of traffic leaving your device
≤, ≥
Gbps, Mbps, Kbps
Applications, Subnet Tags, Geolocations
Ingress Throughput
The volume of traffic entering your device
≤, ≥
Gbps, Mbps, Kbps
Applications, Subnet Tags, Geolocations
Total Throughput
The total volume of traffic running through your device
≤, ≥
Gbps, Mbps, Kbps
Event Detection Alerts
Alert Type: Event Dectection
Event Impact
is, is not
High, Low, Medium
Event Type
is, is not
Local Network Issues, Network Issue, Network Outage, Proxy Issue, Server Issue
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