This read-only Unsigned32 reports the T2 timer value learned from the DHCP server for this interface's lease, marking when the client should begin rebinding if renewal with the original server fails. An admin checks this to understand the rebinding timing behavior of a specific DHCP-leased interface. For example, seeing a T2 value higher than T1 confirms normal DHCP timer ordering where rebinding is attempted later than the initial renewal window.