Contents

Cluster Status - Field Help

Edit any of the following configuration settings on the Cluster Status panel and click Update Configuration.

Default port sticky time

The default sticky time for all future ports on this cluster. Sticky time is used to create an affinity relationship between a client and a specific server. After the sticky time has been exceeded, the client may be sent to a server different from the previous. Sticky time may be overridden on a per-port basis. The default value is 0, meaning that the port is not sticky. This can also be set at the executor level.

Default port stale timeout

The default number of seconds during which there can be no activity on a connection before that connection is removed. It may be overridden on a per-port basis. The default for port 21 is 900; the default for port 23 is 32,000,000. The default value for all other ports is 300 and can also be set at the executor level.

Default port weight bound

The default weight bound for all future ports on this cluster. It may be overridden on a per-port basis. The default value is 20 and can also be set at the executor level.

Maximum number of ports

The maximum number of ports on this cluster. The default value is 8 and can also be set at the executor level.

Default maximum servers per port

The default maximum number of servers per port on this cluster. It may be overridden on a per-port basis. The default value is 32 and can also be set at the executor level.

Default port protocol

The default port type for all future ports on this cluster. It may be overridden on a per-port basis. Possible values are TCP, UDP, or both protocols (TCP/UDP) and can also be set at the executor level. The default value is TCP/UDP.

Bandwidth to be shared

The level of bandwidth (kilobytes per second) to be shared at the cluster or executor level. Sharing bandwidth at the cluster level allows a port (or ports) to share a maximum amount of bandwidth across several ports (applications/protocols) within the same cluster. Sharing bandwidth at the executor level allows a cluster (or clusters) within the entire Dispatcher configuration to share a maximum amount of bandwidth. The default value is 0. If the value is zero, then bandwidth cannot be shared.

Note: You should specify a maximum shared bandwidth value that does not exceed the total bandwidth (total server capacity) available.

Primary host for the cluster

The nonforwarding address of the primary host for the cluster in dotted decimal format.



The following current statistics are also displayed on the Cluster Status panel:

Cluster address

The dotted decimal IP address of this cluster.

Cluster alias on NIC

Specifies whether or not the cluster has been aliased. Possible results are: configured, unconfigured, or unavailable.

SYNs on active connections

The number of redundant connection requests. A high rate of growth in this statistic could indicate slow or no response from servers in this cluster.

SYNs on finished connections

The number of requests for new connections, where those new connections are the same as current connections in FIN state.

FINs received before SYNs

FINs dropped due to no connection. Rapid increase in this statistic could indicate that the stale timeout is too low. Any percentage greater than 1% of total packets forwarded could indicate a problem.

ACKs received before SYNs

ACKs dropped due to no connection. Rapid increase in this variable could indicate that the stale timeout is too low. Any percentage greater than 1% of total packets forwarded could indicate a problem.

RSTs received before SYNs

RSTs dropped due to no connection. Rapid increase in this variable could indicate that the stale timeout for this cluster is too low. Any percentage greater than 1% of total packets forwarded could indicate a problem.

Total packets dropped

Packets dropped due to no connection. Rapid increase in this variable could indicate that the stale timeout for the ports on this cluster is too low. Any percentage greater than 1% of total packets forwarded could indicate a problem.

SYN on SYN for quiesced server

The number of requests for new connections, where those new connections are the same as connections already received for a server that has been quiesced.

KBytes transferred per second

The number of kilobytes transferred in a one second interval.

Connections per second

The current number of connections per second for this cluster.



List of Ports

A list of currently active ports and the number of servers that are currently active.