Alcatel-Lucent 1643 AMS Applications And Planning Manual page 239

Ethernet Overview
Example
The following table shows an example of a scheduler table:
Queue
1
2
3
4
The strict priority queues are served before the weighted bandwidth queues. The strict
priority queue with the highest weight is served first, queue 4 in this example.
In this example, after serving the strict priority queues 4 and 2, the remaining
bandwidth is evenly divided over queues 1 and 3.
Depending on the mode of operation, queue 3 or queue 4 is used for network
management traffic, for instance for the spanning tree protocol (see
queue assignment" (p.
stability.
Default settings
These are the default settings of the queue scheduling method and weight:
Queue
1
2
3
4
Note: To ensure network stability (internal (r)STP BPDUs must arrive), queue 4 is
served with strict priority scheduling with a fixed priority of 239.
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365-312-801R7.2
Issue 3, May 2007
Queue scheduling method
Weighted bandwidth
Strict priority
Weighted bandwidth
Strict priority
11-61)). Hindering this traffic can influence Ethernet network
Queue scheduling method
Strict priority
Strict priority
Strict priority
Strict priority
Alcatel-Lucent - Proprietary
See notice on first page
Classification, queueing and scheduling
Weight Normalized weight
5 50%
9 1
5 50%
15 2
"Traffic class to
Weight
1
2
3
239
11-63