Nortel Networks NN43001-563 Port numbers used by IP Trunk 3.01 (and later), QoS fallback thresholds and IP Trunk 3.01 (and later)

Implement QoS in IP networks 131
Port numbers used by IP Trunk 3.01 (and later)
Table25 "Pre-defined TCP por ts" (page 131) and Table26 "Pre-defined
UDP ports" (page 131) list the pre-defined ports used by IP Trunk 3.01
(and later).
Tabl e 25
Pre-defined TCP ports
Network interface Port use Port number
ELAN DCHIP inter-card messaging 6001
TLAN H.225 TCP port 1720
(destination port only)
Tabl e 26
Pre-defined UDP ports
Interface Port use Port number
ELAN BOOTP Server 67 (on Leader card)
ELAN SNMP 161
TLAN RTP Ports 2300 – 2362
(TCID*2 + 2300)
or
17300 – 17362
(TCID*2 + 17300)
TLAN RTCP Ports 2301 – 2363
(TCID*2 + 2300 + 1)
or
17301 – 17363
(TCID*2 + 17300 + 1)
QoS fallback thresholds and IP Trunk 3.01 (and later)
In IP Trunk3.01 (and later), QoS remains in effect when communicating
between non-Gatekeeper-routed endpoints (IP Trunk3.01 (and later)
endpoints). For more information, see Fallback threshold and "Setting the
QoS threshold for fallback routing" (page 164).
However, QoS fallback forGatekeeper-routed calls (calls to
Gatekeeper-routed endpoints) is not possible. This is because the calls
routed by the Gatekeeper can bedirected to a variety of endpoints, some of
which might not have direct PSTN connectivity.
A well engineered network greatly reduces the need for QoS fallback to
PSTN. A well engineered network includes the following features:
•implementing network QoS features such as DiffServ and 802.1Q/p to
give priority to real-time voice traffic
Nortel Communication Server 1000
IP TrunkFundamentals
NN43001-563 02.01 Standard
Release 5.5 21December 2007
Copyright© 2007, Nor tel Networks
.