[solved] PPP sessions restarting, and Phone audio cutting out, what to do?

[Thatoo]

Here is what I found (I give it a shot, I don't really understand what information I'm giving)

Protocol SIP/SDP

Differentiated Services Field: 0x68 (DSCP: AF31, ECN: Not-ECT)
    0110 10.. = Differentiated Services Codepoint: Assured Forwarding 31 (26)
    .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)

Protocol SIP

Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
    0000 00.. = Differentiated Services Codepoint: Default (0)
    .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)

Protocol RTP

Differentiated Services Field: 0xb8 (DSCP: EF PHB, ECN: Not-ECT)
    1011 10.. = Differentiated Services Codepoint: Expedited Forwarding (46)
    .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)

An other protocol RTP

Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
    0000 00.. = Differentiated Services Codepoint: Default (0)
    .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)

I couldn't relate any UDP to voip.

Does that make any sens to you? Can I help giving more information for your studies (helping FLOSS)?

[moeller0]

If the RTPs come from a SIP call, I would guess that the CS0 (this is equivalent with no dscp marking, or the default) one is probably from ingress, where cake's wash option makes sure that the (anyway not really trustworthy ingress DSCPs are all remapped to zero) same guess for the Protocol SIP packets with CS0.

@Thatoo

Can I help giving more information for your studies (helping FLOSS)?

Thanks a lot, but this was more for my curiosity to confirm my hypothesis why layer_cake helped in your case. I hope your parents are happy and that calling continues to simply work well.

[dlakelan]

@Thatoo

Differentiated Services Field: 0xb8 (DSCP: EF

This EF that the Cisco box automatically puts on the RTP packets is why layer cake works, it causes layer cake to send this packet through the voice tin preempting all the other traffic that was previously starving your call.