Which ports are used by RTP/Signaling traffic on the TLAN? 1

[cypher0]

I'm looking in our CS 1000 Element Manager, under Node Details > LAN it shows the RTP/RTCP Starting Port is 5200...

I'm trying to apply DiffSrv (QoS) across our network devices in the call paths, and when I do a capture on the TLAN switch, the packets are all over the place: 5000, 5100, 5200, 5202, 5203, 5206, 5210, etc., up to 5258. My guess is that the 52XX packets are the actual voice stream (RTP)...

My question is, how can I tell which ports I need to apply DiffSrv on? I want to mark our voice streams EF-46 and the Signaling traffic AF-40.

Does anyone know how this works? I would like to be able to plan ahead, and understanding how these packets are getting sent over which port ranges will be essential in deciding which packets to mark with which DSCP marking.

I'm also trying to figure out where to find the Signaling traffic ports so I can mark them AF-40... I'm not sure where to look for these ports and the documentation I have isn't very obvious. Our vendor is also quite useless - hence my involvement.

Thanks,

-C

 

[cypher0]

I forgot to add the hardware we are using:

Avaya 1140E IP Deskphones
MC32S Media Cards (7 of them)
Option 61C - r6.0

 

[bigindian65]

Nortel VOIP Ports
Component Port Type (signaling , voice, probe, etc) IP protocol (TCP/UDP) Port number or range
CS1000
Registration signaling RUDP 4100 / 7300
Signaling (Unistim) signaling RUDP 5100
UFTP (firmware download) signaling RUDP 5105
Line side - 32 port media card voice / RTP UDP/RTP 5200-5262 (even)
Line side - 32 port media card voice / RTCP UDP/RTCP 5201-5263 (odd)
Line side (when using 96 port DSP) voice / RTP UDP/RTP 5200-5390 (even)
Line side (when using 96 port DSP) voice / RTCP UDP/RTCP 5201-5391 (odd)
Line side (when using 96 & 32 port DSP) voice / RTP UDP/RTP 5200-5454 (even)
Line side (when using 96 & 32 port DSP) voice / RTCP UDP/RTCP 5201-5455 (odd)
PRI Gateway (with 2 96 port DSP) voice / RTP UDP/RTP 5200-5582 (even)
PRI Gateway (with 2 96 port DSP) voice / RTCP UDP/RTCP 5201-5583 (odd)
Trunk signaling UDP 1718-1719
Trunk signaling TCP 1720
Trunk voice / RTP UDP/RTP 2300-2363 or 17300-17363 (even)
Trunk voice / RTCP UDP/RTCP 2301-2364 or 17301-17364 (odd)
Trunk QOS monitoring QOS probe UDP/RTP 5000
SIP signaling TCP & UDP 5060
tds
IP Phones -> CS1000
Registration signaling RUDP 4100 / 7300
IP Phones - CS1000 signaling RUDP 5000
Signaling (Unistim) signaling RUDP 5100
UFTP (firmware download) signaling RUDP 5105
RTP (media) voice / RTP UDP/RTP 5200
RTCP (signaling) voice / RTCP UDP/RTCP 5201
Signaling (Echo server) signaling RUDP 10000
TFTP (firmware download) signaling TFTP 69
IP Phones - WLAN voice UDP/RTCP IP Protocol 119

Mato' Was'aka

 

[cypher0]

Our media cards are setup to hunt round-robin, so as calls come in, they simply get routed through the next open port in the sequence:

4 0 0 0
4 0 0 1
4 0 0 2

etc.

Does this mean that each port on the media card uses its own unique udp port to communicate on the TLAN as well? My packet captures seem to indicate as such, but wanted to verify with someone with a bit more experience...

If that's the case, we have 7 media cards with 32 ports each... that's a range from udp ports 5200 - 5648? Is that right?

 

[cypher0]

Or is it just ports 5200-5262 per card? (is there an edit post button somewhere?)

Thanks,

-C