diff options
| author | Holger Hans Peter Freyther <zecke@selfish.org> | 2011-06-23 17:53:27 -0400 |
|---|---|---|
| committer | Holger Hans Peter Freyther <zecke@selfish.org> | 2012-01-06 18:52:05 +0100 |
| commit | faf1f64a2d0a54d37616a8bec8691346ab792cde (patch) | |
| tree | cf9f5052348eae7207bceeb9803967686ca3e692 /openbsc/tests/gprs/gprs_test.ok | |
| parent | 26d0fe3c89042ed4008903dbe12c5110d8f9fc48 (diff) | |
gprs: Honor GSM 04.64 8.4.2 Receipt of unacknowledged information
GSM 04.64 8.4.2 asks to ignore UI frames if the DLCI is not known,
or if the "(V(UR)- 32) <= N(U) < V(UR)". E.g. if we want to have
V(UR) == 511 and this frame is dropped, we would ignore N(U)'s
0 to 510. Calculate the delta.
The code is based on Jonathan Santos's "LLC UI window" fix but the
issue was discovered independly.
Diffstat (limited to 'openbsc/tests/gprs/gprs_test.ok')
| -rw-r--r-- | openbsc/tests/gprs/gprs_test.ok | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/openbsc/tests/gprs/gprs_test.ok b/openbsc/tests/gprs/gprs_test.ok new file mode 100644 index 000000000..39d37c120 --- /dev/null +++ b/openbsc/tests/gprs/gprs_test.ok @@ -0,0 +1,16 @@ +Testing gprs_llc_is_retransmit. +N(U) = 0, V(UR) = 0 => new +N(U) = 0, V(UR) = 1 => retransmit +N(U) = 0, V(UR) = 1 => retransmit +N(U) = 511, V(UR) = 1 => retransmit +N(U) = 483, V(UR) = 1 => retransmit +N(U) = 482, V(UR) = 1 => retransmit +N(U) = 481, V(UR) = 1 => new +N(U) = 0, V(UR) = 240 => new +N(U) = 0, V(UR) = 511 => new +N(U) = 1, V(UR) = 511 => new +N(U) = 511, V(UR) = 511 => new +N(U) = 510, V(UR) = 511 => retransmit +N(U) = 481, V(UR) = 511 => retransmit +N(U) = 479, V(UR) = 511 => new +Done. |