Appendix A:Troubleshooting a WSS 687Nortel WLAN—Security Switch 2300 Series Configuration GuideThe snap-length num option specifies the maximum number of bytes to capture. If you do not specify a length, theentire packet is copied and sent to the observer. Nortel recommends specifying a snap length of 100 bytes or less.The following command configures a snoop filter named snoop1 that matches on all traffic, and copies the traffic to thedevice that has IP address 10.10.30.2:WSS# set snoop snoop1 observer 10.10.30.2 snap-length 100The following command configures a snoop filter named snoop2 that matches on all data traffic between the device withMAC address aa:bb:cc:dd:ee:ff and the device with MAC address 11:22:33:44:55:66, and copies the traffic to the devicethat has IP address 10.10.30.3:WSS# set snoop snoop2 frame-type eq data mac-pair aa:bb:cc:dd:ee:ff 11:22:33:44:55:66observer 10.10.30.3 snap-length 100Displaying configured snoop filtersTo display the snoop filters configured on the WSS, use the following command:show snoop info [filter-name]The following command shows the snoop filters configured in the examples above:WSS# show snoop infosnoop1:observer 10.10.30.2 snap-length 100all packetssnoop2:observer 10.10.30.3 snap-length 100frame-type eq datamac-pair (aa:bb:cc:dd:ee:ff, 11:22:33:44:55:66)Editing a snoop filterTo edit a snoop filter, you can use the show configuration area snoop command to display the filter’s configurationcommand, then use cut-and-paste to reconstruct the command.Deleting a snoop filterTo delete a snoop filter, use the following command:clear snoop filter-name
