
Configuring Multiline Services
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Address-based selection ensures that all outbound traffic to a particular endstation
travels on the same data path, and that packets arrive in the correct sequence. Use
this method for protocols that cannot receive packets out of sequence. Note,
however, that this option may not result in even traffic distribution across all data
paths.
Random Selection
If you choose random selection, the router determines the data path for outbound
traffic by using random number generation. With this method, the router:
1. Assigns a set of numbers to each data path
2. Generates a random number for each outbound packet
3. Sends the packet across the data path with the matching number
See the Data Path Chooser parameter on page A-91 for information.
Grouping Logical Lines into a Multiline Circuit
You can group as many as 31 MCE1 logical lines and 24 MCT1 logical lines into
one multiline circuit. All logical lines in a multiline group have the same circuit
name.
This section describes how to group unused MCE1 or MCT1 logical lines into one
multiline circuit. An unused logical line is a line without a defined circuit.
Note:
Address-based selection cannot be used with frame relay in group or
hybrid access mode. Traffic distribution is automatically changed to random
selection.
Note:
Random selection provides even distribution across all active data paths
in the topology; however, packets traveling on different paths can arrive at their
destination out of sequence. Some protocols cannot tolerate packets arriving
out of sequence, and as a result, you can experience poor performance or
failures. Be sure that random selection is appropriate for your application.
Note:
If the MCE1 or MCT1 circuit is already configured, you must delete the
single-line circuit before creating a multiline circuit.
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