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laforge gerrit-no-reply at lists.osmocom.orglaforge has submitted this change. ( https://gerrit.osmocom.org/c/osmo-mgw/+/23967 ) Change subject: manual: Include QoS chapter and add osmo-mgw specific example ...................................................................... manual: Include QoS chapter and add osmo-mgw specific example Change-Id: I46f632f52a86a50242689a0132a7a7cb2a8feb12 Depends: osmo-gsm-manuals.git Id344c29eda2a9b3e36376302b425e9db1f6c0f28 --- A doc/manuals/chapters/qos-example.adoc M doc/manuals/osmomgw-usermanual.adoc 2 files changed, 44 insertions(+), 0 deletions(-) Approvals: laforge: Looks good to me, approved Jenkins Builder: Verified diff --git a/doc/manuals/chapters/qos-example.adoc b/doc/manuals/chapters/qos-example.adoc new file mode 100644 index 0000000..deb3d86 --- /dev/null +++ b/doc/manuals/chapters/qos-example.adoc @@ -0,0 +1,42 @@ +==== Full example of QoS for osmo-mgw + +In the below example we will show the full set of configuration required +for both DSCP and PCP differentiation of RTP traffic by osmo-mgw. + +What we want to achieve in this example is the following configuration: + +.DSCP and PCP assignments for osmo-mgw Abis downlink traffic in this example +[options="header",width="30%",cols="2,1,1"] +|=== +|Traffic |DSCP|PCP +|RTP | 46| 6 +|=== + +. configure the osmo-mgw program to set the DSCP value +. configure an egrees QoS map to map from priority to PCP + +.Example Step 1: add related VTY configuration to `osmo-mgw.cfg` +---- +... +mgcp + rtp ip-dscp 46 + rtp socket-priority 6 +... +---- + +.Example Step 2: egress QoS map to map from socket priority to PCP values +---- +$ sudo ip link set dev eth0.9<1> type vlan egress-qos-map 0:0 5:5 6:6 7:7 <2> +---- +<1> make sure to specify your specific VLAN interface name here instead of `eth0.9`. +<2> create a egress QoS map that maps the priority value 1:1 to the PCP. We also include the + mapping 5:5 and 7:7 from the osmo-bsc example (see <<userman-osmobsc>>) here. + +NOTE:: The settings of the `ip` command are volatile and only active until +the next reboot (or the network device or VLAN is removed). Please refer to +the documentation of your specific Linux distribution in order to find out how +to make such settings persistent by means of an `ifup` hook whenever the interface +comes up. For CentOS/RHEL 8 this can e.g. be achieved by means of an `/sbin/ifup-local +script` (when using `network-scripts` and not NetworkManager). For Debian or Ubuntu, +this typically involves adding `up` lines to `/etc/network/interfaces` or a `/etc/network/if-up.d` +script. diff --git a/doc/manuals/osmomgw-usermanual.adoc b/doc/manuals/osmomgw-usermanual.adoc index c4660f5..7ebc2db 100644 --- a/doc/manuals/osmomgw-usermanual.adoc +++ b/doc/manuals/osmomgw-usermanual.adoc @@ -24,6 +24,8 @@ include::./common/chapters/osmux/osmux.adoc[] +include::./common/chapters/qos-dscp-pcp.adoc[] + //include::{srcdir}/chapters/counters.adoc[] include::./common/chapters/vty_cpu_sched.adoc[] -- To view, visit https://gerrit.osmocom.org/c/osmo-mgw/+/23967 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-mgw Gerrit-Branch: master Gerrit-Change-Id: I46f632f52a86a50242689a0132a7a7cb2a8feb12 Gerrit-Change-Number: 23967 Gerrit-PatchSet: 3 Gerrit-Owner: laforge <laforge at osmocom.org> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: dexter <pmaier at sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de> Gerrit-Reviewer: laforge <laforge at osmocom.org> Gerrit-Reviewer: pespin <pespin at sysmocom.de> Gerrit-MessageType: merged -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210429/61aef3e8/attachment.htm>