Tivoli Header

Resource Model Reference

Segment Affecting Redirector

This indication is sent when the current commands are high, but bytes per second on both the redirector and server services are not high. It is then assumed that the current commands are high due to a high percentage utilization of the network segment.

The indication has the following attributes:

CurrentBandWidth
The bandwidth of the network interface card

CurrentCommands
The current commands that are queued for service on the redirector

PercentNetworkUtil
The percentage of network utilization on the segment

NetworkSegment
The network segment being analyzed (Key attribute)

ServerBPS
The bytes per second being transferred through the server

The indication is generated when the following thresholds are exceeded:

Threshold Description Default
High Current Commands Modifier (HighCurrCmdsMod) This threshold counts the requests to the redirector that are currently queued for service. If this number is much larger than the number of network adapter cards installed in the computer, the networks, servers, or both being accessed have a serious bottleneck. This value is used in conjunction with the number of network cards installed on the system. The final threshold value is calculated by multiplying the number of network cards in the system by this threshold.
10
High Percent Broadcast (HighPercentBroadcast) This threshold must not be exceeded.
90
High Percent Bytes Per Second (HighPercentBytesSec) To test for a high amount of bytes per second, a dynamic threshold value needs to be created based on the current bandwidth of the network interface card. Because there will be an internal dynamic calculation, the threshold value is a percentile that indicates what percentage of the bandwidth is considered too high. For example: 830 KBPS is considered high for 10 MB ethernet networks. This value is about 8 percent.
9
High Percent Utilization (HighPercentUtilization) This threshold determines at what point the network utilization of the internal segment is too high.
40

The following table shows the default settings for this indication:


Setting Default
Send indications to Tivoli Enterprise Console Yes
Send indications to Tivoli Business Systems Manager No
Occurrences 6
Holes 1


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