User's Manual

Advanced Configuration
If you have configured any user-defined protocols then click OK and then COMMIT.
For example, a device with the following configuration would discard frames received on its Ethernet interface with a UDP
destination port number of 137, effectively blocking NETBIOS Name Service packets. Please note that even the Filtering
Control should be enabled to apply the filter.
Protocol Name Port Number Port Type Filter Interface Entry Status (Enable/Disable)
NETBIOS Name Service 137 UDP Ethernet Enable
5.10.4.2 Adding User-defined TCP/UDP Port Filter Entries
To add user-defined TCP/UDP port filter entries to the table, click Add in the TCP / UDP Port Filter screen. The TCP/UDP Port
Filter Add Row screen appears:
Figure 5-68 Add User-defined TCP/UDP Protocols
Provide details for all the parameters and click Add.
To apply the configured parameters, click COMMIT.
:
• The TCP/UDP filtering operation is allowed only when the Global Flag and Filter Control options are enabled.
• A maximum of 64 TCP/UDP Port Filter entries can be added to the table, out of which 7 are default entries.
5.10.5 Storm Threshold Filter
The Storm Threshold Filter restricts the excessive inbound multicast or broadcast traffic on layer two interfaces. This protects
against broadcast storms resulting from spanning tree misconfiguration. A broadcast or multicast filtering mechanism needs to be
enabled so that a large percentage of the wireless link remains available to the connected mobile terminals.
To configure Storm Threshold Filter, navigate to ADVANCED CONFIGURATION > Filtering > Storm Threshold Filter. The
Storm Threshold Filter screen appears. This screen contains information about the threshold values per second of the
multicast and broadcast packets that can be processed for the interface(s) present in the device.
Tsunami® 8100 Series - Software Management Guide 120