GTP-U support

Subrata Nath

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Jul 13, 2021, 7:31:15 PM7/13/21

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Hi,

I would like to generate 5G GTP-U packets from Trex. I am able to do the same through GTP_U_Header(teid=740294658,gtp_type=255,S=0) in scapy.

I would like to check if there is support in scapy to encode Next extension header type= PDU Session Container also so that QFI (Qos flow identifier) field also can be encoded?

Regards,

Subrata

hanoh haim

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Jul 14, 2021, 2:06:51 AM7/14/21

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Hi Subrata,

You better ask this in scapy forum or look into the scapy code or add it yourself

Thanks

Hanoh

Srikanth.Garnepalli

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Jul 14, 2021, 6:35:15 AM7/14/21

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Hi can u send full pcap so that i can analyze ,& reply back

Thanks & Regards

Srikanth Garnepalli

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Subrata Nath

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Jul 16, 2021, 3:09:20 AM7/16/21

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Hi Srikanth,

You can find it in 3GPP spec 29.281 chapter 5.2.1 General format of the GTP-U Extension Header.

1000 0101

PDU Session Container. See NOTE 4.

Details of PDU Session Container can be found at 3GPP spec 38.415 chapter 5.5.2.1,5.5.2.2.

You can find the pcap in the link https://derekcheung.medium.com/5gc-part-3-user-plane-and-gtp-u-tunnels-53319463967

Thanks for your support.

Regards,

Subrata

Regards,

Subrata

Vamsi Krishna

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Jul 16, 2021, 3:29:51 AM7/16/21

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Hi All,

Can you please suggest me how to bring up trex as a pod in kubernetes

am trying to build an image and bring up a trex pod , please let me know if any related docs available

Thanks,

vamshi.

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