Chapter 11 Quality of Service (QoS)
Table 28 Advanced Setup > QoS > QoS Settings Summary (continued)
LABEL | DESCRIPTION |
IPP/TOS (DSCP) | The ZyXEL Device |
Remarking | matched traffic. |
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802.1p Remarking | The ZyXEL Device |
| matched traffic. |
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Queue # | The ZyXEL Device assigns the queue level specified in this field to matched |
| traffic. |
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11.3 QoS Technical Reference
This section provides some technical background information about the topics covered in this chapter.
11.3.1 IEEE 802.1p
IEEE 802.1p specifies the user priority field and defines up to eight separate traffic types. The following table describes the traffic types defined in the IEEE 802.1d standard (which incorporates the 802.1p).
Table 29 IEEE 802.1p Priority Level and Traffic Type
PRIORITY | TRAFFIC TYPE | |
LEVEL | ||
| ||
Level 7 | Typically used for network control traffic such as router configuration messages. | |
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| |
Level 6 | Typically used for voice traffic that is especially sensitive to jitter (jitter is the variations in | |
| delay). | |
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| |
Level 5 | Typically used for video that consumes high bandwidth and is sensitive to jitter. | |
|
| |
Level 4 | Typically used for controlled load, | |
| Network Architecture) transactions. | |
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| |
Level 3 | Typically used for “excellent effort” or better than best effort and would include important | |
| business traffic that can tolerate some delay. | |
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| |
Level 2 | This is for “spare bandwidth”. | |
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| |
Level 1 | This is typically used for | |
| allowed but that should not affect other applications and users. | |
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| |
Level 0 | Typically used for | |
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11.3.2 IP Precedence
Similar to IEEE 802.1p prioritization at
96 |
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