How do I configure Low Latency Transport (LLT) for VCS?
| Article:TECH1376 | | | Created: 1999-01-11 | | | Updated: 2002-01-04 | | | Article URL http://www.symantec.com/docs/TECH1376 |
Problem
How do I configure Low Latency Transport (LLT) for VCS?
Solution
To configure LLT, set up an /etc/llttab configuration file on each system in the cluster.
Each /etc/llttab file must specify the system�s ID number, the network interfaces to use, and other directives. Refer to the sample llttab file in /opt/VRTSllt.
The following example shows a simple llttab with minimum directives.
- set-node 1
link qfe0 /dev/qfe:0 - ether - -link
qfe1 /dev/qfe:1 - ether - -start
| Directive | Description and Notes |
|---|---|
| set-node | Assigns the system ID. This number must be unique for each system in the cluster and be in the range of 0 - 31. |
| link | Attaches LLT to a network interface. At least one link is required and up to eight are supported. |
| start | The start directive must always appear last. |
| set-cluster | Assigns a unique cluster number. Use this directive when more than one cluster is configured on the same physical network connection. |
| link-lowpri | Use this directive in place of a link for public network interfaces. This directive prevents VCS comunications on the public network unitl the network is the last link, and reduces the rate of heartbeat broadcasts. |
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Related Articles
Legacy ID
181389
Article URL http://www.symantec.com/docs/TECH1376
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