From de76b97c94ddb5cc457a533708ae89b922181d1d Mon Sep 17 00:00:00 2001 From: Jon-Olov Vatn Date: Wed, 16 Oct 2024 07:49:30 +0200 Subject: [PATCH] Doc fix on QoS. PCP takes priority over DSCP for tagged IP packets This is how it works and how we want it to be by default. No code change, just doc change. [skip ci] --- doc/ChangeLog.md | 3 +++ doc/qos.md | 4 ++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/doc/ChangeLog.md b/doc/ChangeLog.md index 52015513..9f691bb1 100644 --- a/doc/ChangeLog.md +++ b/doc/ChangeLog.md @@ -10,6 +10,9 @@ All notable changes to the project are documented in this file. addresses for interfaces! For details, see below issue #680. ### Changes +- Correcting documentation on QoS. For packets containing both a VLAN + tag and an IP header, PCP priority takes precedence over DSCP + priority (not vice versa). - Update CONTRIBUTING.md for scaling core team and helping external contributors understand the development process, issue #672 - OSPF: Add limitation to only allow one interface per area diff --git a/doc/qos.md b/doc/qos.md index 278810ca..1e52e4ae 100644 --- a/doc/qos.md +++ b/doc/qos.md @@ -54,8 +54,8 @@ significant bits of the DSCP is used to select the queue: | 6 | 48-55 | ⇒ | 6 | 25 | | 7 | 56-63 | ⇒ | 7 | 33 | -For packets containing both a VLAN tag and an IP header, DSCP priority -takes precedence over PCP priority. In cases where neither are +For packets containing both a VLAN tag and an IP header, PCP priority +takes precedence over DSCP priority. In cases where neither are available, packets are always assigned to queue 0. Each port's set of 8 egress queues operate on a Weighted Round Robin