Filters and QoS Configuration for ERS 5500 |
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Technical Configuration Guide | v2.0 |
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•If you are using (the AppleTalk Filing Protocol) AFP, use large or maximum resource sharing (AFP use a fix windows size set to 65,535K).You should use the large resource sharing setting:
•If you are using your 5520 for high bandwidth application such as video.
•If you are using large TCP windows for your traffic, use large resource sharing (you can also reduce the TCP windows size on windows operating system - see Microsoft TechNet article 224829).
•If you have 4 or fewer ports connected per group of 12 ports.
You should use the Regular resource sharing setting:
•If you are using your 5520 in a VOIP environment.
•If you have 5 or more ports connected per group of 12 ports.
Egress CoS Queuing
The following charts describe each possible egress CoS queuing setting. The mapping of 802.1p priority to egress CoS queue, dequeuing algorithm, and queue weight is given. Additionally, the memory and maximum number of packets which can be buffered per egress CoS queue and resource sharing settings is shown.
Table 5: Ethernet Routing Switch 5500 Egress CoS Queuing
Setting
8 CoS
Internal | Egress |
| Dequeuing | Weight | |
CoS |
| ||||
Priority |
| Algorithm | |||
Queue |
|
| |||
|
|
|
|
| |
7 | 1 |
| Strict | 100% | |
|
|
|
|
|
|
6 | 2 |
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| 41% |
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|
|
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5 | 3 |
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| 19% |
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|
|
|
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4 | 4 |
|
|
| 13% |
|
|
| Weighted |
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3 | 5 |
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| 11% | |
| Round Robin |
| |||
|
|
|
|
| |
2 | 6 |
|
|
| 8% |
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|
|
|
|
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1 | 7 |
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| 5% |
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|
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0 | 8 |
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| 3% |
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Regular
Memory/
#of 1518 Byte Packets 36864B 24 36864B 24 27648B 18 18432B 12 18432B 12 18432B 12 18432B 12 18432B 12
Large | Max |
Memory/ # | Memory/ # |
of 1518 | of 1518 |
Byte | Byte |
Packets | Packets |
49152B | 131072B |
3286
47104B 123392B
3181
45056B 115712B
2976
43008B 108032B
2871
39936B 97792B
2664
36864B 85504B
2456
33792B 70656B
2246
30720B 54272B
2035
7 CoS
7
6
5
4
1 |
| Strict | 100% | |
|
|
|
|
|
2 |
| Weighted |
| 45% |
| Round Robin |
| ||
|
|
|
| |
3 |
|
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| 21% |
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|
|
|
4 |
|
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| 15% |
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36864B
24
32768B
21
26624B
17
19968B
13
49152B | 144640B |
3295
46080B 131840B
3086
39936B 120064B
2679
33280B 109824B
2172
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