Connection Change indication is not forwarded to host during CT19 Connection Manager test

During the Forward Close test (CT19 Connection Manager Object behavior test) a lot of class 1 connections get opened and closed in a very short time. This triggers a lot of indication packets towards the host application and GenAp.

This includes:

• Connection Change Ind (0x1A2E)
• Set COM LED Ind (0xAE06)
• Set Communication Status Ind (0xAE00)

The EIP-GCI component has limited resources for such indication which in the above outlined scenario with come to its limit. As a consequence multiple indication cannot be sent.

In case that a connection ind is not forwarded to the host application this additionally results in errors in the Ct19 test, since a class 3 Forward Open Request will not be answered.

This situation occurs in GCI based firmwares only. i.e. all EtherNet/IP LFW V3 firmwares are not affected.