This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/gerrit-log@lists.osmocom.org/.
laforge gerrit-no-reply at lists.osmocom.orglaforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-pcu/+/23929 ) Change subject: manual: Include QoS chapter and add osmo-pcu specific example ...................................................................... manual: Include QoS chapter and add osmo-pcu specific example Change-Id: I4d409b55861f05ba229dc5cb97f99370356e3dbd Requires: osmo-gsm-manuals.git Id344c29eda2a9b3e36376302b425e9db1f6c0f28 --- A doc/manuals/chapters/qos-example.adoc M doc/manuals/osmopcu-usermanual.adoc 2 files changed, 49 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-pcu refs/changes/29/23929/1 diff --git a/doc/manuals/chapters/qos-example.adoc b/doc/manuals/chapters/qos-example.adoc new file mode 100644 index 0000000..dcbba2a --- /dev/null +++ b/doc/manuals/chapters/qos-example.adoc @@ -0,0 +1,47 @@ +==== Full example of QoS for osmo-pcu uplink QoS + +In the below example we will show the full set of configuration required +for both DSCP and PCP differentiation of uplink Gb traffic by osmo-pcu. + +What we want to achieve in this example is the following configuration: + +.DSCP and PCP assignments for osmo-bts uplink traffic in this example +[options="header",width="30%",cols="2,1,1"] +|=== +|Traffic |DSCP|PCP +|Gb (NS) | 10| 1 +|=== + +. configure the osmocom program to set the DSCP value + * osmo-pcu.cfg: `dscp 10` in `udp bind` vty node +. use a packet filter rule to set the priority based on DSCP +. configure an egrees QoS map to map from priority to PCP + +.Example Step 2: iptables rules to map from DSCP values to priority values +---- +$ sudo iptables -t mangle -I OUTPUT -m dscp --dscp 10 -j CLASSIFY --set-class 1 +---- + +NOTE:: The above-mentioned `iptables` commands only insert the rules +into the Linux kernel. They are volatile and will be gone on next boot. +It is up to you to ensure they are re-installed at every boot, e.g. by +some kind of init script, systemd unit file, or packet filter rule +management software like firewalld, ufw, ... + +.Example Step 3: egress QoS map to map from DSCP values to priority values +---- +$ sudo ip link set dev eth0.9<1> type vlan egress-qos-map 0:0 1:1 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 mappings for 5, 6, and 7 from the osmo-bts example here (see + <<userman-osmobts>>). + +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/osmopcu-usermanual.adoc b/doc/manuals/osmopcu-usermanual.adoc index e202e33..0fae72a 100644 --- a/doc/manuals/osmopcu-usermanual.adoc +++ b/doc/manuals/osmopcu-usermanual.adoc @@ -21,6 +21,8 @@ include::./common/chapters/gb.adoc[] +include::./common/chapters/qos-dscp-pcp.adoc[] + include::./common/chapters/vty_cpu_sched.adoc[] include::./common/chapters/port_numbers.adoc[] -- To view, visit https://gerrit.osmocom.org/c/osmo-pcu/+/23929 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-pcu Gerrit-Branch: master Gerrit-Change-Id: I4d409b55861f05ba229dc5cb97f99370356e3dbd Gerrit-Change-Number: 23929 Gerrit-PatchSet: 1 Gerrit-Owner: laforge <laforge at osmocom.org> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210428/16c3cb73/attachment.htm>