Finisar Surveyor Creating and Applying a Port Number, Selecting Filter Templates, Nation box

Template Combi-

Capture and Display Filters 7

Creating Filters with Filter Templates

Creating and Applying a Port Number

Surveyor provides a convenient way to add a port number to a filter. You specify port numbers for the filter by filling out the Add Port to Template area of the Filter Design window. This area consists of a protocol selection, frame type selection, a port number, a direction indicator, and an Apply Port to Template check box. Refer to the table below for field definitions that comprise a port number selection.

	Table 7-2. Defining Port Numbers
Conversation Element	Description
Protocol	IP/UDP, IP/TCP
Frame Type	EV2 (Ethernet II), SNAP, ISL, VLAN
	Frame type applies to network layer addresses only. Use VLAN in
	conjunction with Q+EV2 as the Conversation Frame Type to filter for
	802.1Q packets.
Port Number	Decimal UDP or TCP port number.
Traffic Direction Indicator	<-> Capture/Display all traffic where the specified port
	is the source or the destination
	-> Capture/Display only the traffic where the
	specified port is the source
	<- Capture/Display only the traffic where the
	specified port is the destination
Apply Port to Template	Include or exclude the port specification as part of the filter template.
check box

Selecting Filter Templates

A filter template contains the data patterns for creating the logical conditions that will be used as a test against incoming frames. To select a filter template, click on the template in the Available Filter Templates area and press the Add button, or dou- ble-click on the filter template. The filter template is added to the

nation box.

Filter templates are always assigned a name and that name is referenced in the tem- plate combination. Pre-defined filter templates are provided that can be used as is, or you can define your own filter templates. See “Standard Filter Templates” in Appendix B for the filter templates supplied with Surveyor. You cannot alter the pre-defined filter templates.

Most filter templates have a defined offset and pattern within a frame. However, one template has no specific offset and length (MatchAll). Some filter templates have predefined values, such as MAC_DA_Broadcast (FFFFFFFFFFFF).

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