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pre-emption decoding on S11 interface

0

Hello,

within the Create Session request message on the S11 inteface the wireshark within Bearer Context IE decodes Bearer Level Quality of Service (Bearer QoS) in ARP field the wireshark decoded preemption values

        .... ...1 = PVI (Pre-emption Vulnerability): Enabled
        ..00 01.. = PL (Priority Level): 1
        .1.. .... = PCI (Pre-emption Capability): Enabled

from within the 3GPP a different value seems to be given:

First 29.274 Section 8.15 Bearer Quality of Service (Bearer QoS) and further reference to Spec 29.212
5.3.46 Pre-emption-Capability AVP PRE-EMPTION_CAPABILITY_ENABLED (0) PRE-EMPTION_CAPABILITY_DISABLED (1)

5.3.47 Pre-emption-Vulnerability AVP PRE-EMPTION_VULNERABILITY_ENABLED (0) PRE-EMPTION_VULNERABILITY_DISABLED (1)

So in other words: the wireshark wants to make us believe that value 1 is enabled while the 3GPP states that value 1 is disabled.

How to explain this mismatch?

Best regards

Dieter

asked 23 Jul '12, 01:18

demx1874's gravatar image

demx1874
1112
accept rate: 0%


One Answer:

1

A bug in Wireshark.

answered 23 Jul '12, 08:07

Anders's gravatar image

Anders ♦
4.6k952
accept rate: 17%