Regression

SGSN_Tests.TC_xid_empty_l3 (from Titan)

Failing for the past 1 build (Since #88 )

"VTY Timeout for prompt: enable"
      SGSN_Tests.ttcn:3963 SGSN_Tests control part
      SGSN_Tests.ttcn:3153 TC_xid_empty_l3 testcase