-be exchanged among the neighbors. LQEP maintains a sequence number
-that is incremented by one for each outgoing LQEP frame. LQEP frame
-transmits this sequence number and Link Information entries describing
-the in-bound link qualities for a subset of its neighbors. When a node
-receives the LQEP frame and finds its node id in one of the Link
-Information entries, the node MUST use the second element of that
-tuple as its out-bound link quality to the neighbor identified by the
-data link source address. The LQEP sequence number SHOULD be used to
-estimate the in-bound link quality.
-
-2.3 LQEP Frame
+be exchanged among the neighbors. LEEP maintains a sequence number
+that is incremented by one for each outgoing LEEP frame. The sequence
+number in the LEEP frame MUST be incremented by one even if the data
+link layer retransmits the LEEP frame. The LEEP sequence number MAY be
+used to count the number of missing packets to estimate the in-bound
+link quality from the transmitter. LEEP MUST transmit Link Information
+entries describing the in-bound link qualities for a subset of its
+neighbors. The Link Information entry on the LEEP frame allows the
+receiver node to find the out-bound link quality to the transmitter
+node identified by the data link source address. Thus, LEEP is also a
+way for nodes to discover new nodes and links in the network.
+
+Link quality estimation is inherently imperfect - data transmission
+and link quality estimation might be done at different timescales. The
+PRR for LEEP frames (broadcast) and data frames (unicast) might be
+different. So LEEP is better used as a link quality bootstrapping
+mechanism. The link quality estimate can be made more accurate later
+using data transmission statistics.
+
+
+
+3.3 LEEP Frame