Description

GTP traffic will be dropped after applying the GTP profile.

 

GTP profile will start dropping the below packets which in turn will cause traffic outage.

 

1)Create Session response

2)Modify bearer requests/Response

3)Delete session requests/response.

 

Below errors will be seen,

 

[07:11:52] EXEC: cprod -A node1.fpc2.pic1 -c "show usp gtp counters error"

================ node1.fpc2.pic1 ================

 

gtp-error (total 91), lsys_id: 0.

       total dropped                     21986163

 .

       error response not match              2874            <<

 .

       error control tunnel not found     9306389            <<

 .

       error no request for match        12661405            <<

 

 

Symptoms

traffic outage

Solution

GTP profile needs to see the create session request/response messages to update the database and allow the corresponding traffic

Clear the current tunnels and flow sessions on SRX and on the SGW and PGW.

Modification History

2026-02-26 : Article Created