11.3.3 TCP/IP Version 6 on the HMC and SE 11.3.4 OSA Support Facility changes The HMC and SE can communicate by using IPv4, IPv6, or both. Assigning a static IP  address to an SE is unnecessary if the SE communicates only with HMCs on the same  subnet. The HMC and SE can use IPv6 link-local addresses to communicate with each other. IPv6 link-local addresses feature the following characteristics: Since OSA/SF was moved from z/OS to HMC/SE environment, it was noted that it is no  longer easy to obtain a global view of all OSA PCHIDs and the monitoring and diagnostic  information that was previously available in the Query Host command. To address this issue, the following changes were made: GLYPH<SM590000> Every IPv6 network interface is assigned a link-local IP address. GLYPH<SM590000> A link-local address is used on a single link (subnet) only and is never routed. GLYPH<SM590000> Two IPv6-capable hosts on a subnet can communicate by using link-local addresses,  without having any other IP addresses assigned. GLYPH<SM590000> If a CPC is targeted, the initial panel provides a global view of all OSA PCHIDs. GLYPH<SM590000> The user can browse to various OSA Advanced Facilities subtasks from the initial panel,  which makes the process of getting to them less cumbersome. GLYPH<SM590000> Today’s View Port Parameters and Display OAT entries support exporting data of one OSA  PCHID. A new action is added to the initial panel that exports the data for all OSA PCHIDs. GLYPH<SM590000> The initial panel was changed to display status information of all OSA PCHID (see  Figure 11-12). Figure 11-12 OSA Advanced Facilities panel 372  IBM 14 Model ZR1 Technical Guide