neels has submitted this change. (
https://gerrit.osmocom.org/c/osmo-upf/+/30835 )
Change subject: manual: add charts explaining tunend and tunmap
......................................................................
manual: add charts explaining tunend and tunmap
Change-Id: Ia0674c97eb0d8b5caeae988aefe523c5eee7318b
---
M doc/manuals/chapters/overview.adoc
1 file changed, 26 insertions(+), 0 deletions(-)
Approvals:
Jenkins Builder: Verified
pespin: Looks good to me, but someone else must approve
laforge: Looks good to me, approved
diff --git a/doc/manuals/chapters/overview.adoc
b/doc/manuals/chapters/overview.adoc
index a6dc345..32c3060 100644
--- a/doc/manuals/chapters/overview.adoc
+++ b/doc/manuals/chapters/overview.adoc
@@ -79,6 +79,19 @@
OsmoUPF does not support the complete PFCP feature set. It detects exactly two
use cases that will provide service of actual GTP tunnels:
+.tunend use case
+----
+Access osmo-upf Core
+ PGW | PDN/internet
+ | PDR1: > FAR1: |
+ | IP/GTP | IP |
+ | ------> F-TEID | -----> |
+ | | |
+ | FAR2: < PDR2: |
+ | IP/GTP | IP |
+ | F-TEID <------ | UE IP addr <----- |
+----
+
* `tunend`: GTP tunnel encapsulation/decapsulation:
- One Packet Detection Rule (PDR) accepts a GTP tunnel from the Access side
with an Outer Header Removal.
@@ -86,6 +99,19 @@
- Another PDR accepts plain IP on a specific IP address from Core.
- The second PDR uses a FAR towards Access with Outer Header Creation for
GTP.
+.tunmap use case
+----
+Access osmo-upf Core
+ PGW | PGW
+ | PDR1: > FAR1: |
+ | IP/GTP | IP/GTP |
+ | ------> F-TEID | -----> F-TEID |
+ | | |
+ | FAR2: < PDR2: |
+ | IP/GTP | IP/GTP |
+ | F-TEID <------ | F-TEID <----- |
+----
+
* `tunmap`: GTP tunnel forwarding:
- One Packet Detection Rule (PDR) accepts a GTP tunnel from the Access side
with an Outer Header Removal.
--
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Gerrit-Project: osmo-upf
Gerrit-Branch: master
Gerrit-Change-Id: Ia0674c97eb0d8b5caeae988aefe523c5eee7318b
Gerrit-Change-Number: 30835
Gerrit-PatchSet: 3
Gerrit-Owner: neels <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <[email protected]>
Gerrit-Reviewer: neels <[email protected]>
Gerrit-Reviewer: pespin <[email protected]>
Gerrit-MessageType: merged
