I've set up QoS on a 2911 (15.0.1) router to match RTP audio with the command "match protocol rtp audio." My understanding is this uses NBAR. I'd like to understand what this is matching. Running the "sh ip nbar port-map" command shows no port mapping for RTP.
Is that normal, how do I know what it's actually doing?
nBAR RTP payload classification not only allows the router to statefully identify real time audio and video traffic, but it can also differentiate RTP streams on the basis of specific audio and video CODECs used. nBAR RTP Payload Classification looks deeper into the RTP header to classify RTP traffic for voice and video based on the payload type used (ie: G.711, G.729, and MPEG). The packet is classified as RTP based on multiple attributes in the RTP header, rather than even UDP port numbers alone.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...