User guide

4-36 DL3800 DS1 Inverse Multiplexer User Guide—February 1999
4
However, it is important to note that the remote IMUXÕs ÒUnit IP AddressÓ
parameter must be set to some non-zero value in order to respond to the
bridged IP packets.
SNMP trap packets from the remote IMUX unit are modiÞed upon receipt.
The source IP address Þeld in the trap packet is modiÞed to the ÒRemote IP
AddressÓ parameter; then the packet is forwarded out the NMS/SLIP link.
In-Band SNMP to Remote
This feature allows the user to manage both local and remote units with a
single NMS station attached to only one of the two units.
If the unit receives an SNMP packet from its SLIP port with the IP address
of the remote unit, the local unit forwards the packet to the remote unit
over the Embedded Data Link.
If the unit receives an SNMP packet that does not match its IP address or
the IP address of the remote unit, the packet is discarded.
The unit responds to SNMP packets with its IP address from an NMS with
any IP address (no change from the current functionality).
The unit transmits SNMP responses from either its SLIP port or to the
remote unit depending on the direction from which the packet came.
The IP address of the remote unit must be set to a non-zero value for this
feature to work. This Þeld is shown in Figure 4-16 on page 4-33.
Save Configuration
This option allows the user to manually backup the database to EEPROM
at any time. To SAVE CONFIGURATION and backup the database to
EEPROM, highlight SAVE CONFIGURATION in the SYSTEM UTILITIES
MENU, and press the Enter key.
Tests
The TESTS MENU allows the user to initiate or stop four types of
loopbacks for each individual network port: DTE/NETWORK
LOOPBACK for the DTE, PAYLOAD LOOPBACK, LINE LOOPBACK, and
LOCAL LOOPBACK. For troubleshooting suggestions see
ÒTroubleshooting the DL3800Ó on page 6-3.
To access the TESTS MENU, move the highlight bar to TESTS in the DL3800
Main Menu, and press Enter.