Ports used by Observer Platform v17 and later

Open inbound and outbound TCP 80, 443, and 25901 on your firewalls for Observer Platform products version 17 and later.

Table 3. Supported Operating Systems
Port	Functionality
TCP 80 TCP 443 TCP 8008 TCP 25901	Requests from product to VIAVI to see if a new version or update exists. Secure web server traffic, including Understanding GigaStor trace extraction between Apex and GigaStor. Default port for transfer of software upgrades. All intra-Observer Platform communication.