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[skm-ma-ws1314.git] / sec-dns-extensions.tex

diff --git a/sec-dns-extensions.tex b/sec-dns-extensions.tex
index 65926db..d3ec16e 100644 (file)
--- a/sec-dns-extensions.tex
+++ b/sec-dns-extensions.tex
@@ -30,7 +30,8 @@ Another feature of Multicast DNS is the reduction of traffic through
 \term{Known-Answer Suppression}. It allows a querying host to specify already
 known resources in its query when querying resources that could exist on more
 than one host (e.~g., SRV records). The hosts matching those resources then do
-not generate a response.
+not generate a response, thus reducing the messages in the network and saving
+bandwidth, which is usually a scarce resource in wireless networks.
 
 Finally, hosts may also send unsolicited responses. This can be used to notify
 the network of new services available on a host.