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laforge gerrit-no-reply at lists.osmocom.orglaforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bsc/+/23961 ) Change subject: manual: Include QoS chapter and add osmo-bsc specific example ...................................................................... manual: Include QoS chapter and add osmo-bsc specific example Change-Id: I35b0b67dfe40d37c3f2896472b8bf35bfcc89cda Depends: osmo-gsm-manuals.git Id344c29eda2a9b3e36376302b425e9db1f6c0f28 Depends: libosmo-abis.git I8991dd6eb406a5b9a70498974fc1ad339452f871 --- M TODO-RELEASE A doc/manuals/chapters/qos-example.adoc M doc/manuals/osmobsc-usermanual.adoc 3 files changed, 52 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/61/23961/1 diff --git a/TODO-RELEASE b/TODO-RELEASE index d0852fc..e8d67c3 100644 --- a/TODO-RELEASE +++ b/TODO-RELEASE @@ -7,3 +7,4 @@ # If any interfaces have been added since the last public release: c:r:a + 1. # If any interfaces have been removed or changed since the last public release: c:r:0. #library what description / commit summary line +update dependency to libosmo-abis > 1.1.1 for new e1_input vty commands for DSCP + priority diff --git a/doc/manuals/chapters/qos-example.adoc b/doc/manuals/chapters/qos-example.adoc new file mode 100644 index 0000000..2897377 --- /dev/null +++ b/doc/manuals/chapters/qos-example.adoc @@ -0,0 +1,49 @@ +==== Full example of QoS for osmo-bsc Abis downlink QoS + +In the below example we will show the full set of configuration required +for both DSCP and PCP differentiation of downlink Abis traffic by osmo-bsc. + +What we want to achieve in this example is the following configuration: + +.DSCP and PCP assignments for osmo-bsc Abis downlink traffic in this example +[options="header",width="30%",cols="2,1,1"] +|=== +|Traffic |DSCP|PCP +|A-bis RSL | 56| 7 +|A-bis RTP | 46| 6 +|A-bis OML | 34| 5 +|=== + +The RTP related configuration must be configured on the BSC-colocated `osmo-mgw`, +and is hence out of scope for this manual. + +. configure the osmocom 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-bsc.cfg` +---- +... +e1_input + ipa dscp oml 34 + ipa priority oml 5 + ipa dscp rsl 56 + ipa priority rsl 7 +... +---- + +.Example Step 2: 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 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 from the osmo-mgw example (see <<userman-osmomgw>>) 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/osmobsc-usermanual.adoc b/doc/manuals/osmobsc-usermanual.adoc index e66b2be..e00eba0 100644 --- a/doc/manuals/osmobsc-usermanual.adoc +++ b/doc/manuals/osmobsc-usermanual.adoc @@ -48,6 +48,8 @@ include::./common/chapters/vty_cpu_sched.adoc[] +include::./common/chapters/qos-dscp-pcp.adoc[] + include::{srcdir}/chapters/aoip-flows.adoc[] include::./common/chapters/port_numbers.adoc[] -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/23961 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-Change-Id: I35b0b67dfe40d37c3f2896472b8bf35bfcc89cda Gerrit-Change-Number: 23961 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/b32163c8/attachment.htm>