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GTP: What are the use of GTP-C messages ?

+4 votes
GTP: What are the use of GTP-C messages ?
posted Jan 8, 2014 by Harshita

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2 Answers

+2 votes

The GTP-C messages are used for the control plane path management, for the control plane tunnel management and for mobility management.

answer Jan 8, 2014 by Vimal Kumar Mishra
I have a very small doubt. Does the "Create session request/response" messages represent path management ? And bearer related messages represent tunnel management ?
+1 vote

GTP-C (v2) in LTE is used for tunnel management, some of the signalling messages are listed below which use GTP-Cv2 protocol

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SGW <--> MME (S11 Interface)
SGW <--> PGE (S5 Interface)

GTPv2-C – 3GPP TS 29.274

answer Jan 8, 2014 by Luv Kumar
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+5 votes

Sequence numbers are required in a handful of message types (handover, etc.), but I need to know if they are usually present even when they are optional in the message definitions. Can you point me to a publically available pcap trace of live traffic?

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