Port Filters
Flow Mapping provides the ability to apply filters to tool ports, passing or dropping traffic after it has been forwarded from a network port.
Tool port-filters provide a convenient way to narrow down the traffic seen by tools without having to change an entire map. However, they are less efficient and scalable than flow maps – focus on using flow maps as your first packet distribution technique.
How to Apply Port Filters
To apply a port filter, do the following:
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Select Ports > Ports > All Ports. |
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Select the egress port that to which you want to apply a filter. |
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Under Filters on the Ports page, click Add Rule. |
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Select and configure the rule. |
Add a new port-filter using the specified criteria as follows:
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Use a drop rule to deny packets matching the specified criteria. |
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Use a pass rule to allow packets matching the specified criteria. All other packets are denied. |
Port Filter Notes
Keep in mind the following notes when managing port-filters:
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The filter is only supported for egress ports – network ports use maps to direct traffic. |
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You can only configure egress port filters on a single port at a time. The filter argument is blocked when used the with multiple tool ports or port groups. |
Port-Filter Maximums
Each GigaVUE-HC2 or GigaVUE-HC3 module, or GigaVUE-HB1 node supports 100 combined tool port-filters. In the GigaVUE-HC2 equipped with Control Card Version 2 (HC2 CCv2) or the GigaVUE-HC1 or GigaVUE-HC3 node, the limit is 400 filters. The GigaVUE TA Series can only support 20 tool port-filters. When the GigaVUE-TA100 or GigaVUE-TA200 are in a cluster, they can support 400 filters.
A single filter applied to multiple tool ports counts multiple times against the 100-filter limit.
MORE INFORMATION 
