Cabletron Systems CSX200 User Manual

Also see for SPECTRUM: User guide User guide User guide User guide Guide

Contents

CSX Bridge View3-18The Special Database WindowClicking the All Filters button opens a window that displays the Special Filters IOTable. The bridge uses this table to decide what to do with a frame that matchesthe information in a filter. If the frame information matches the filter information,and the frame was received at the port specified in the table, the bridge forwardsthe frame to the bridge ports listed in the table. See Viewing the Filter List,page 3-19.The Apply button in the Filtering Database window lets you save changes toedited filter information. See the next section, Changing a Special DatabaseFilter, for filter editing procedures.Changing a Special Database FilterTo enable, disable, or edit the contents of a Special Database entry:1. In the Special Database window, use the slide bar to display the FilterNumber you want to edit.2. In the Filter State field, click in the appropriate check box to Enable orDisable the filter, as desired.3. In the Receive Port list box, click to select the Port at which a packet must bereceived in order for this filter to be applied. Selecting “All” will allow the filterto be applied to packets at any received port.4. In the Destination Port list box, click to select one or more ports to which anypackets matching filter parameters will be forwarded.5. In the Offset field, enter a value that determines where within the data portionof the packet the 64 byte window used for matching should begin.6. Highlight and type Source and Destination Addresses. An X in an addressposition serves as a wildcard, forcing a match to any value in that position inthe received packet’s address field.7. Highlight and type a 4-digit Type value in the Type field. The Type identifies thepacket type. For example, 8138 identifies a Novell packet. An X in a Type fieldserves as a wildcard, forcing a match to any value in that position in thereceived packet’s Type field.NOTEBy using different combinations of Receive Port/Destination Ports, you can definemultiple conditions for a single filter. For example, you can configure a filter so that apacket received at port 1 that matches the filter conditions is forwarded to port 2, and apacket received at port 2 that matches the filter conditions is forwarded to ports 3 and 4.To define multiple port conditions, just change the Receive and Destination Port valuesfor a defined filter and then click on the Apply button.