Server load balancing statistics
This help contains the following topics:
Introduction
Virtual server statistics
You can display real-time statistics for virtual servers.
Table-1 shows the information displayed on the virtual sever statistics page.
Table-1 Virtual server statistics
Item | Description | |
Virtual server name | Virtual server for which the statistics information is displayed. | |
State | Virtual server state:
| |
Connection count | Active | Number of active connections for the virtual server. |
New | Average number of connections established with the virtual server per second. | |
Half-open | Number of half-open connections between the virtual server and client. This field is displayed for only TCP virtual servers. | |
Bandwidth (Kbps) | Outbound | Outbound bandwidth of the virtual server. |
Inbound | Inbound bandwidth of the virtual server. | |
Click SSL offloading capability statistics to display SSL offloading real-time statistics.
Table-2 SSL offloading statistics
Item | Description |
New connections | Number of new SSL offloading connections per second. |
Active connections | Number of active SSL offloading connections. |
Inbound bandwidth (bps) | Inbound bandwidth of SSL offloading. |
Outbound bandwidth (bps) | Outbound bandwidth of SSL offloading. |
Server farm statistics
Table-3 shows the information displayed on the sever farm statistics page.
Table-3 Server farm statistics
Item | Description | ||
Server farm name | Server farm for which the statistics information is displayed. | ||
State | Server farm state:
| ||
Total real servers | Total number of real servers in the server farm. | ||
Available real servers | Number of available real servers in the server farm. | ||
Connection count | Active | Number of active connections for the server farm. | |
New | Average number of connections established with the server farm per second. | ||
Total | Total number of connections for the server farm. | ||
Total bandwidth (Kbps) | Total bandwidth of the server farm. | ||
Packet count | Received | Number of packets received by the server farm. | |
Sent | Number of packets sent by the server farm. | ||
Dropped | Number of packets dropped by the server farm. | ||
HTTP packets | Received requests | Number of HTTP requests received by the server farm. | |
Dropped requests | Number of HTTP requests dropped by the server farm. | ||
Sent responses | Number of HTTP responses sent by the server farm. | ||
Dropped responses | Number of HTTP responses dropped by the server farm. | ||
Traffic (bits) | Received | Data traffic received by the server farm. | |
Sent | Data traffic sent by the server farm. | ||
Real server statistics
Table-4 shows the information displayed on the real sever statistics page.
Table-4 Real server statistics
Item | Description | |
Real server name | Real server for which the statistics information is displayed. | |
State | Virtual server state:
| |
IPv4 address | IPv4 address of the real server. | |
IPv6 address | IPv6 address of the real server. | |
Domain name | Domain name of the real server. | |
Connection count | Active | Number of active connections for the real server. |
New | Average number of connections established with the real server per second. | |
Bandwidth (Kbps) | Outbound | Outbound bandwidth of the real server. |
Inbound | Inbound bandwidth of the real server. | |
URL visit statistics
The URL visit statistics shows the statistics of URLs accessed by users in a bar chart, pie chart, or list.
The administrator can set statistics conditions to rank URLs by virtual server or statistics node. Table-5 shows the statistics conditions.
Table-5 URL visit statistics conditions
Item | Description |
Virtual server name | Counts the total number of URL accesses to a virtual server. |
Statistics node name | Counts the total number of URL accesses to an HTTP statistics node that belongs to the specified virtual server. |
Statistics period | Specifies the time period for collecting the total URL visit statistics. |
Click Start to enable the device to collect URL visit statistics and rank URL accesses based on the specified statistics conditions.
HTTP protection statistics
The HTTP protection statistics page shows attack record statistics and attack rankings in a bar chart or a list to help you understand the protection results of protection policies.
Attack records
The Attack Records tab displays information about attack traffic matching a protection policy, including attack duration, source IP address, URL, virtual server name, cookie name, protection action, attack times, and context.
You can click the 
icon for each column to specify criteria to filter attack records. You can also click Export to Excel to download the attack records on the current page.
Attack ranking
You can set statistics conditions to rank attack traffic. Table-6 shows the supported statistics conditions.
Table-6 Attack traffic statistics conditions
Item | Description |
Ranking | Specifies the top N ranking: Top 5 or Top 10. |
Count by | Specifies the counting type:
|
Duration | Specifies the duration for collecting the total attack traffic statistics. |
Click Start to enable the device to collect attack traffic statistics and rank attack traffic based on the specified statistics conditions.
vSystem support information
Support of non-default vSystems for this feature depends on the device model. This feature is available on the Web interface only if it is supported.