eG Monitoring

Measures reported by GtmGlobalStatTest BIG-IP Global Traffic Manager (GTM) is a global server load balancing solution that directs traffic to the most optimal resources based on various factors such as availability, performance, and proximity. GTM distributes DNS and user application requests based on business policies, data center and cloud service conditions, user location, and application performance. BIG-IP GTM delivers high-performance DNS Services with visibility, reporting, and analysis; hyper-scales and secures DNS responses geographically to survive DDoS attacks; delivers a complete, real-time DNSSEC solution and ensures global application high availability in all hybrid environments. Wide IP (WIP) resolution in BIG-IP GTM involves determining the appropriate IP address to be returned in the DNS response for a given DNS query. The resolution process considers the requested domain name, record type, and optional attributes associated with the WIP. The GtmGlobalStatTest monitors the Wide IP requests and reports the number of requests that have been transmitted/received through the target BIG-IP GTM. This helps the administrator to find out if there had been requests that were dropped during transmission/reception. Outputs of the test: One set of results for the BIG-IP GTM that is being monitored. The measures made by this test are as follows:
Measurement | Description | Measurement Unit | Interpretation
--- | --- | --- | ---
Total_WIP_Request | Indicates the total number of requests for wide IPs in the target BIG-IP GTM during the last measurement period. | Number |
Total_WIP_Resolution | Indicates the total number of resolutions for wide IPs in the target BIG-IP GTM during the last measurement period. | Number |
Total_WIP_PersistReq | Indicates the number of persisted requests for wide IPs in the target BIG-IP GTM during the last measurement period. | Number |
Data_Rcvd | Indicates the total number of bytes received by the system in the target BIG-IP GTM during the last measurement period. | Number | Compare the value of this measure across the servers to know which server is receiving maximum data.
Data_Txmtd | Indicates the total number of bytes sent out by the target BIG-IP GTM during the last measurement period. | Number | Compare the value of this measure across the servers to know which server is transmitting maximum data.
Data_Dropped | Indicates the total number of bytes dropped due to backlog/connection disruption in the target BIG-IP GTM during the last measurement period. | Number | Ideally, the value of this measure should be zero.
Total_reslve_rtntd_dns | Indicates the number of times client requests had been directed to the appropriate resources without the intervention of the target BIG-IP GTM during the last measurement period. | Number |
TypeA_reqst_WIP | Indicates the number of ‘A’ requests for wide IPs in the target BIG-IP GTM during the last measurement period. | Number | ‘A’ records are used for DNS resolution of IPv4 addresses. When configuring a Wide IP, you can associate one or more ‘A’ records with it. Each ‘A’ record maps the domain name to an IPv4 address of a member. These members typically represent IPv4-enabled resources, such as servers or load balancers.
TypeAAAA_reqst_WIP | Indicates the number of ‘AAAA’ for wide IPs in the target BIG-IP GTM during the last measurement period. | Number | ‘AAAA’ records, also known as IPv6 records, are used for DNS resolution of IPv6 addresses. Similarly, you can associate one or more ‘AAAA’ records with a Wide IP in GTM. Each ‘AAAA’ record maps the domain name to an IPv6 address of a member. These members represent IPv6-enabled resources.