Fluke Computer Accessories DiffServ, Traffic class, Source AS, Dest AS, Src/dest AS, Dest subnet

User’s Guide – version 3.5 NetFlow Tracker

DiffServ

This will select only traffic bearing one of the selected differentiated service code points. Since DiffServ and ToS use the same field in the IP header you should not use both filters at the same time. You can assign a name to a code point using the DiffServ Names settings page.

Traffic class

This filter selects traffic with the given traffic class. In order for traffic classes to be identified the NetFlow device must support the functionality and its traffic class mapping must be configured in Device Settings.

Source AS

You can select traffic bearing one of a set of source AS numbers. Whether this is the origin or peer AS depends on the configuration of the router (see Appendix 1). You can enter an AS number manually or select from the set of private-use ASes configured in the AS Names settings page; note that you cannot select public ASes by name to avoid the filter page being excessively large.

Dest AS

This restricts the source data to traffic bearing the given destination origin or peer ASes.

Src/dest AS

This filter considers traffic to or from the given origin or peer ASes.

Source subnet

This will select traffic with the given source subnet. You can enter the network address and mask length manually or select from the subnets configured in the Subnet Names settings page. Note that the subnet mask used by the router to route the traffic is ignored when applying this filter.

Dest subnet

This filter selects traffic with the given destination subnets. Note that a destination subnet filter of 224.0.0.0/4 will select multicast traffic.

Src/dest subnet

This filter selects traffic to or from the given subnets.

Source mask

This will select traffic routed using the given source network mask.

Dest mask

This filter selects traffic with the given destination network mask.

Src/dest mask

This filter selects traffic with the given source or destination network mask.

Next hop

This will filter traffic according to the next hop used by the router in routing the traffic.

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