small tweak

diff --git a/doc/txt/tep123.txt b/doc/txt/tep123.txt
index 55c85930354c6f6bf797194c97ab3d8b0ea22d48..2324bb1d59bb0c9b038a93f0fd3b79e999789709 100644 (file)
--- a/doc/txt/tep123.txt
+++ b/doc/txt/tep123.txt
@@ -41,7 +41,8 @@ TinyOS 2.x. The users use Collection interfaces described in TEP 119
 In this TEP, after a brief discussion of Collection and CTP, we
 specify the CTP routing and data frames. CTP uses routing frames to
 update and build collection tree in the network. CTP uses data frames
-to deliver application payload to the sink.
+to deliver application payload to the sink and to probe topology
+inconsistencies.
 
 2. Assumptions and Limitations
 ==============================================================================