A diameter node maintains two tables to know its near about.
1. Peer Table
2. Realm routing table.
Peer table is basically maintained to know "to which node a considered node has peer connection".
A peer table has following entries:
Host Identity -> Diameter URI of the node.
StatusT-> State of peer such as open, busy, idle etc.
Static or Dynamic -> Specifies whether entry is configured statically or dynamically.
Expiration Time -> This entry specifies the time at which dynamically discovered peer table entries are to either refreshed or deleted.
TLS Enabled -> This entry specifies whether TLS is to be used when communicating with peer.