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QoS: Standards and Protocols in the Network

Created: May 15, 2018 08:51:35Latest reply: Mar 13, 2022 08:58:02 1367 53 30 0 0

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Hello,

Today I would like to share with you the QoS standards and protocols in the network.

Layer3
DiffServ (RFC2474): is the protocol that defines the prioritization of traffic at layer 3 of the OSI model (routing). Routers use DSCP (Diffserv Code Point) tagging at the IP header. The DSCP field (6bits) replaces the TOS field of the IPv4 header and the Traffic Class Field in IPv6.
Layer2,5
The first 3 bits of the DSCP (or IP Precedence) are copied into the Exp field of the MPLS header.
Layer2
IEEE802.1p: is the standard that defines the prioritization of the layer2 traffic of the OSI model where it is added following the MAC header.
IEE802.1q defines VLAN tagging and specifies 3 bit for prioritization (where 802.1p is applied).
The IEEE802.3 Ethernet protocol contains in its header the TCI field (Tag Control Info).

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wissal

MVE Created Jun 4, 2018 11:04:46

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Wassim

Created Jul 31, 2021 06:37:15

Thanks for sharing

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wissal Created Aug 5, 2021 16:08:53 (0) (0)

wissal Created Aug 6, 2021 16:34:31 (0) (0)

Saqibaz Created Mar 13, 2022 08:57:39 (0) (0)

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be_lo

Created Jul 31, 2021 07:06:14

Well done

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wissal Created Aug 5, 2021 16:09:02 (0) (0)

wissal Created Aug 17, 2021 16:32:46 (0) (0)

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Winter_ba

Created Aug 5, 2021 10:56:52

Excellent

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wissal Created Aug 6, 2021 16:12:12 (0) (0)

wissal Created Aug 17, 2021 16:32:34 (0) (0)

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nagui

Created Sep 9, 2021 19:50:41

Thank you, expert

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wissal Created Sep 10, 2021 17:08:27 (0) (0)

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thiwk

Created Mar 13, 2022 06:06:24

Thank you, expert

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thiwk Created Mar 13, 2022 06:06:34 (0) (0)

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awtaerg

Created Mar 13, 2022 06:09:13

Very useful

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awtaerg Created Mar 13, 2022 06:09:23 (0) (0)

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baril

Created Mar 13, 2022 06:11:01

Informative post

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baril Created Mar 13, 2022 06:11:12 (0) (0)

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mourou

Created Mar 13, 2022 06:12:36

Good post

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mourou Created Mar 13, 2022 06:12:47 (0) (0)

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