QoS
hey,
what's the difference between the following:
1-
ip access-list standard TEST
10 permit udp any any 16384 32767
class-map TEST
match access-group name TEST
policy-map TEST
classmap TEST
priority200
map-class frame-relay TEST
service-policy output TEST
2-
class-map TEST1
match protocol rtp
policy-map TEST1
classmap TEST1
priority 200
map-class frame-relay TEST1
service-policy output TEST1
3-
map-class frame-relay TEST3
frame-relay voice bandwidth 200000
thx,
hadi
Comments
I'm not sure about #3, but the difference between the first two is #1 is just looking at port and protocol, layer 4 information only. #2 is using nbar to look at payload type.
in the first method the port range's which ur matching are used for the voip traffic that means all the voice traffic which falls in the port ranges will get priority..
in the second case ur are prioritzing the RTP protocol traffic..
Peace
isn't the UDP range 16384 - 32767 reserved for RTP ???
thx,
hadi
RTP is simply a protocol type.
H.323 uses everything above 16k actually!
16384-32767 are for voice
32768-49151 are for whiteboard
49152-65535 are for video
HTH,
Scott
----- Original Message -----
From: "hadi" <[email protected]>
Sent: Sat, March 28, 2009 5:16
Subject: Re: [CCIE R&S] QoS
isn't the UDP range 16384 - 32767 reserved for RTP ???
thx,
hadi
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so as scott has made it more clear..
the 1 one is just matching the voice port numbers and this will result in the prioritization of voice traffic only..
the second policy match the protocol RTP which is used for voice traffic..
if in the lab they ask to prioritize voip traffic which one should we use... or which one will be the specific on cos as per brian dennis u should be as specific as possible ???
Either matching the udp port range of 16384 -32767 is better or simply we can match rtp using NBAR...
Peace