Interlogix NS3550-8T-2S User Manual - Manual (Page 253)

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4.13.4 Dynamic IP Source Guard Table
Entries in the Dynamic IP Source Guard Table are shown on this page. The Dynamic IP Source Guard Table is sorted first by
port, then by VLAN ID, then by IP address, and then by MAC address. The Dynamic IP Source Guard Table screen in
Figure
4-13-4 appears.
Figure 4-13-4: Dynamic IP Source Guard Table Screenshot
Navigating the ARP Inspection Table
Each page shows up to 99 entries from the Dynamic IP Source Guard table, default being 20, selected through the "entries per
page
" input field. When first visited, the web page will show the first 20 entries from the beginning of the Dynamic IP Source
Guard Table. The "Start from port address", "VLAN", "IP address" and "IP mask" input fields allow the user to select the
starting point in the Dynamic IP Source Guard Table. Clicking the “Refresh” button will update the displayed table starting from
that or the closest next Dynamic IP Source Guard Table match. In addition, the two input fields will - upon a “Refresh” button
click - assume the value of the first displayed entry, allowing for continuous refresh with the same start address.
The “
>> ” will use the last entry of the currently displayed as a basis for the next lookup. When the end is reached the text "No
more entries" is shown in the displayed table. Use the “ |<< ” button to start over.
The page includes the following fields:
Object Description

Port
Switch Port Number for which the entries are displayed.

VLAN ID
VLAN-ID in which the IP traffic is permitted.

IP Address
User IP Address of the entry.

MAC Address
Source MAC Address.
Buttons
Auto-refresh : Check this box to refresh the page automatically. Automatic refresh occurs every 3 seconds.
: Refreshes the displayed table starting from the "Start from MAC address" and "VLAN" input fields.
: Updates the table starting from the first entry in the Dynamic IP Source Guard Table.
: Updates the table, starting with the entry after the last entry currently displayed.
4.14 LLDP
4.14.1 Link Layer Discovery Protocol
Link Layer Discovery Protocol (LLDP) is used to discover basic information about neighboring devices on the local broadcast
domain. LLDP is a Layer 2 protocol that uses periodic broadcasts to advertise information about the sending device. Advertised
information is represented in Type Length Value (TLV) format according to the IEEE 802.1ab standard, and can include details
such as device identification, capabilities and configuration settings. LLDP also defines how to store and maintain information
gathered about the neighboring network nodes it discovers.
Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED) is an extension of LLDP intended for managing
endpoint devices such as Voice over IP phones and network switches. The LLDP-MED TLVs advertise information such as
network policy, power, inventory, and device location details. LLDP and LLDP-MED information can be used by SNMP
applications to simplify troubleshooting, enhance network management, and maintain an accurate network topology.