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Feature #1720

extend/complete OsmoSGSN user manual

Added by laforge over 3 years ago. Updated 4 months ago.

Status:
In Progress
Priority:
High
Assignee:
Category:
-
Target version:
-
Start date:
05/17/2016
Due date:
% Done:

40%

Spec Reference:

Description

The OsmoSGSN user manual is less complete than some of the other user manuals we have in the osmo-gsm-manuals project. Let's try to change that.

History

#1 Updated by laforge over 3 years ago

  • Assignee changed from dlsitzer to laforge

#2 Updated by laforge about 3 years ago

  • Assignee changed from laforge to wirelesss

#3 Updated by laforge almost 3 years ago

  • Assignee changed from wirelesss to dexter

#4 Updated by dexter almost 3 years ago

The manual seems not to document how the ACL works. It only says that there is an ACL (chapter 9.2), but not how to use it.

#5 Updated by dexter over 2 years ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 20
  • Extended chapter 9.1 Authorization Policy
  • Added chapter about compression: 9.5 Traffic Compression
  • Minor fixups

There is a chapter 10.3 FIXME, that should be fixed next.

#6 Updated by dexter over 2 years ago

  • Status changed from In Progress to Stalled

#7 Updated by laforge over 1 year ago

  • Assignee changed from dexter to daniel

#8 Updated by laforge over 1 year ago

  • Priority changed from Low to High

#9 Updated by daniel 4 months ago

  • Status changed from Stalled to In Progress
  • % Done changed from 20 to 40

Reading through the manual now and came across a couple questions/remarks:

  • Ch. 4.2.4 LLC Implementation says there is no header/data compression. I think the compression dexter implemented (RFC1144 and V.42bis) is meant here even though it talks about IP header compression in the overview, but TCP/IP header compression in ch. 9.5.
  • LLC encryption is now supported since the SGSN can connect to the HLR. It seems only GEA3 and GEA4 are implemented in libosmocore.
  • In the limitations only paging coordination and SMS over PS remain?

So far I went through the overview and running chapters, going to look at configuring and Gb next.

https://gerrit.osmocom.org/q/topic:%22os%25231720%22

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