Monitoring Real Servers

Purpose

Use the monitoring functionality to view the SLB Real Server Monitor page.

Action

To monitor real servers, select Monitor>SLB>Real Server.

Meaning

Table 157 summarizes key information output fields, and Table 158 summarizes the key statistic output fields in the SLB Real Server Monitor page.

You must select a real server in the top pane to display its statistics in the bottom pane.

Table 157: SLB Real Server Monitor Page (Information)

Field

Value

Additional Information

Real Server Information

Name

Displays the name of the real server.

Select a real server to display its statistics in the bottom pane.

IP

Displays the IP address of the real server.

Port

Displays the port number of the service that resides on the real server, or displays the name of a well-known application to represent the port number, such as http for port 80 or ftp for port 21.

 

Weight

Displays the weight assigned to the real server.

AState

Displays the user-configured real server state (Enabled or Disabled).

HState

Displays the health-monitor-reported real server state. Possible states:

  • Init-Down—No Up or Down state reported
  • Max-Down—Connection count reached the maximum connection threshold
  • Probe-Down—Real server state Down
  • Up—Real server state Up

Up Time

Displays the period of time that indicates how long it takes to reach the maximum connection threshold.

The period of time is in seconds.

Cur Limit

Displays the current maximum number of connections allowed.

When the maximum connection rate is 0, the current connection threshold equals the maximum connection threshold. When the maximum connection rate is a nonzero value, the current connection threshold increases over time toward the maximum connection threshold.

Max Limit

Displays the upper threshold for the number of connections allowed to the real server.

Min Limit

Displays the lower threshold for the number of connections allowed to the real server.

Routing

Displays the name of the routing instance assigned to the real server.

The routing instance is configured at the real-server-group level.

Rule

Displays the name of the health monitor used to probe the named real server.

HM SPU

Displays the location of the SPU, such as FPC8.PIC0, used to probe the named real server.

Table 158: SLB Real Server Monitor Page (Statistics)

Field

Value

Additional Information

Real Server Statistics

Total Connections

Displays the total number of connections for the real server reported from the virtual server.

Active Connections

Displays the number of active connections.

Connection Rate

Displays the number of connections created in one second.

Packets

Displays the total number of packets to and from the real server.

Packet Rate

Displays the number of packets to and from the real server in one second.

Bytes

Displays the data counted in bytes to and from the real server.

Byte Rate

Displays the number of bytes to and from the real server in one second.

Slot

Displays the location of the SPU used to probe the real server by listing its FPC slot number.

PIC

Displays the location of the SPU used to probe the real server by listing its PIC number.

Total Conn

Displays the number of all connections for the real server, as reported from the specific SPU.

Act Conn

Displays the number of active connections for the real server, as reported from the specific SPU.

HTTP Tran

Packets

Displays the number of packets for the real server, as reported from the specific SPU.

Bytes

Displays the number of bytes for the real server, as reported from the specific SPU.