HP Network Direr Software Products manual NBX Phone Traffic Classifier Rules

654CHAPTER 15: PRIORITIZING NETWORK TRAFFIC

Determining Field In order to create a new application definition, it is necessary to know the Values for field values that can be used to identify that application. Many vendors

Applications now provide the information about the field values that their applications use either in the application manual or on the vendor’s website to aid firewall configuration. This information may also be used for creating the application definition within the Prioritize Network Traffic Wizard.

If you cannot find the information from either the application manual or the vendor’s website then there are various other websites that may provide the information that you require. In particular, the IEEE are responsible for allocating Ethernet type values. A list of the assigned Ethernet type values can be found on the IEEE website:

http://www.ieee.org/

Similarly, as IANA (Internet Assigned Number Authority) are responsible for allocating TCP and UDP port numbers, a list of known TCP and UDP port numbers can be found on the IANA website:

http://www.iana.org/

The IANA website also contains a list of the known IP protocol numbers.

3Com Network When 3Com Network Director configures devices that are capable of Director Classifier performing complex application classification to identify traffic as NBX

Rules for NBX Phone phone traffic it uses classifier rules shown in the following table:

Traffic

Table 103 NBX Phone Traffic Classifier Rules

Classifier Type	Classifier Value	Description
Ethernet Type	0x8868	Used by NBX phones to
		transmit voice data when
		operating in layer-2 mode.
DSCP	46	Used by NBX phones to
		transmit voice data when
		operating in layer-3 mode.
UDP Port	2093	Used for setting up conference
		calls.
Ethernet Type	0x0806	ARP: used to determine the
		addresses of phones when
		establishing a call.