Nortel Networks NN43001-563 Internet Protocols and ports used by IP Trunk 3.01 (and later), IP Trunk 3.01 (and later) management protocols, IP Trunk 3.01 (and later) management LAN ports, IP Trunk 3.01 (and later) H.323 VoiceGateway Protocols, IP Trunk 3.01 (and later) VoiceGateway Protocols, IP Trunk 3.01 QoS NetworkProbing Proprietary Protocol

130 ITG engineering guidelines

Internet Protocols and ports used by IP Trunk 3.01 (and later)

The following IP applications and protocols are used by IP Trunk3.01 (and

later) and must be transmitted across the customer’s intranet by all IP

routers and other network equipment. This information should be validated

and included in the IP Trunk3.01 (and later) network engineering guidelines.

Customers using ﬁrewalls must be awareof all UDP and TCP por ts being

used by IP Trunk3.01 (and later) and provision their equipment accordingly.

IP Trunk 3.01 (and later) management protocols

IP Trunk 3.01 (and later) uses the UDP and TCP port numbers for

SNMP,Telnet, and FTP (the default port numbers for these common IP

applications).

IP Trunk 3.01 (and later) management LAN ports

In addition to the TCP and UDP ports used for standard IP applications,

there are IP trunk-speciﬁc ports used. Messages sent between the DCHIP

Leader card and other cards use TCP port 6001. When the Backup Leader

card and the Follower cards boot up,they obtain their IP address from the

Leader card over UDP ports 67 – 68.

IP Trunk 3.01 (and later) H.323 VoiceGateway Protocols

H.225 Call Setup Signaling uses TCP port 1720 for the destination port.

H.323 Register and Admission Signaling (RAS) uses UDP port 1719. RAS

is used when registering with a Signaling Server Gatekeeper.

Realtime TransportProtocol (RTP) uses UDP por t 2300-2363 by default. In

TM 3.1, RTP can also be provisioned to use UDP port 17301 – 17362.

The option is also availableto manually enter the star tingvalue for the RTP

port range in TM 3.1. This should only be done at the request of a ﬁeld

engineer.

IP Trunk 3.01 (and later) VoiceGateway Protocols

On the TLAN subnet, IP trunk cards within a node use UDP ports 2001 –

2002 for inter-card communication.

When using the dialing plan tables to resolve an address for non-call

associated signaling, Nortel MCDN messages use UDP port 15000 on the

TLAN subnet to communicate with cards on the far end of the network.

IP Trunk 3.01 QoS NetworkProbing Proprietary Protocol

QoS probing uses UDP port 5000.

Nortel Communication Server 1000

IP TrunkFundamentals

NN43001-563 02.01 Standard

Release 5.5 21 December 2007