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osmith gerrit-no-reply at lists.osmocom.orgosmith has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ggsn/+/23159 ) Change subject: doc/manuals: describe GTP-U kernel module ...................................................................... doc/manuals: describe GTP-U kernel module Related: OS#3209 Change-Id: Ib45cbfe03077960f216a83cf500ab3203d02cb3b --- M doc/manuals/chapters/running.adoc 1 file changed, 41 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ggsn refs/changes/59/23159/1 diff --git a/doc/manuals/chapters/running.adoc b/doc/manuals/chapters/running.adoc index 51b8ae2..3a4d832 100644 --- a/doc/manuals/chapters/running.adoc +++ b/doc/manuals/chapters/running.adoc @@ -80,3 +80,44 @@ ggsn ggsn0 gtp bind-ip 127.0.0.2 ---- + +=== GTP-U kernel module + +OsmoGGSN has support to use the Linux kernel GTP-U code to accelerate the +data/user plane while still implementing the control plane (GTP-C) in userspace +in OsmoGGSN. The kernel code is included in Linux 4.7.0 and higher. Notably the +Debian GNU/Linux distribution has it enabled by default (as module). + +In order to use this feature, make sure that your Linux kernel was configured +to support it (`CONFIG_GTP=m` or `=y`). Furthermore, `osmo-ggsn` must have been +built with `./configure` argument `--enable-gtp-linux`. + +Load the kernel module with: + +---- +$ sudo modprobe gtp +---- + +Then start OsmoGGSN with a configuration file that uses `gtpu-mode kernel-gtp`. + +A full example configuration is in `osmo-ggsn-kernel-gtp.cfg`. + +---- +$ sudo osmo-ggsn -c /usr/share/doc/osmo-ggsn/examples/osmo-ggsn-kernel-gtp.cfg +---- + +.Example: APN with kernel-gtp +---- +ggsn ggsn0 + gtp state-dir /tmp + gtp bind-ip 127.0.0.2 + apn internet + gtpu-mode kernel-gtp + tun-device tun4 + type-support v4 + ip prefix dynamic 172.16.222.0/24 + ip dns 0 8.8.8.8 + ip dns 1 8.8.4.4 + ip ifconfig 172.16.222.0/24 + no shutdown +---- -- To view, visit https://gerrit.osmocom.org/c/osmo-ggsn/+/23159 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ggsn Gerrit-Branch: master Gerrit-Change-Id: Ib45cbfe03077960f216a83cf500ab3203d02cb3b Gerrit-Change-Number: 23159 Gerrit-PatchSet: 1 Gerrit-Owner: osmith <osmith at sysmocom.de> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210301/e201cbf8/attachment.htm>