Automatic Configuration; Handling Process For Automatically Enabling Vlan; Figure 5-14 System Composition - Tadiran Telecom TGW4 SERIES User Configuration Manual

TGW4/8 Gateway Series for Aeonix

5.2 Automatic Configuration

5.2.1 Handling Process for Automatically Enabling VLAN

System Composition
Figure 5-14
The process consists of the following steps:
The TGW periodically sends an LLDP message to notify the switch of TGW information. The sending
interval is modifiable on the GUI interface. See Table 2-4.
At the same time, the TGW receives an LLDP message from the switch, and parses the VLAN ID,
Priority, and DSCP fields.

If the message carries a VLAN ID, the TGW enables the VLAN, adds VLAN information to
the next messages to be sent, and obtains network information such as IP address via DHCP.
If the VLAN is also manually enabled on the GUI interface, its VLAN information will be
replaced by the information that the TGW has obtained from the LLDP message.

If the message does not carry a VLAN ID, the TGW checks whether the VLAN is manually
enabled. If the VLAN is manually enabled, the TGW uses the VLAN information configured
manually; otherwise, the TGW enters the non-VLAN communication status.

Handling Procedure When the LLDP Message Carries a VLAN ID
The TGW detects whether the LLDP message carries a VLAN ID upon startup only. Once a VLAN ID is
detected, the TGW enables the VLAN, adds VLAN information to the next messages to be sent, and
obtains network information such as an IP address via DHCP. The TGW ignores any subsequent LLDP
message with different VLAN ID. Figure 5-15 shows the handling procedure.
Tadiran Telecom (TTL) L.P.
High Availability Configuration Guide
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