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1. General description Ethernet/Gigabit Ethernet loopback device ETS-1000L (referred to as de- vice, analyser) is intended for performing loopback at the physical, data link, network and transport layers of the OSI model. The device allows to carry out loopback control via OAM protocol and remote control via TELNET protocol.
3. Overview Front panel Front panel of ETS-1000L device is shown on the figure 3.1. Figure 3.1. Front panel LEDs Green color of LEDs corresponds to a loopback layer: • 1 — physical layer (1); • 2 — data link layer (2);...
• green — full-duplex connection; • off — half-duplex connection. Power LED lights up when the power supply unit is plugged in. External connectors Location of external connectors on the top panel is shown on the figure 3.2. ETS-1000L. Operating manual...
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Tester connectors and equipment to be connected are described in the table 3.2. Table 3.2. Connectors description Description Connected equipment RJ-45 connector to connect to the tested Ethernet cable network or equipment SFP-module connectors SFP-module External power unit connector Power supply unit ETS-1000L. Operating manual...
2.1. 2. Plug in the power supply unit to the electric network (if you use mains voltage 110–240 V with the 50–60 Hz frequency) and to the ETS-1000L. 3. The device is ready in 15 second.
– TCP/UDP Dst — destination TCP/UDP port number; – TCP/UDP Src — source TCP/UDP port number. • At the Data link layer (L2), the incoming traffic (without error frames) is being retransmitted backward with swapping destination and source MAC addresses. ETS-1000L. Operating manual...
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Figure 5.2. Loopback at the data link layer Note: if a frames destination MAC address is not equal to the MAC address of ETS-1000L, the frame will not be retransmitted. Note: frames with equal destination and source MAC address are not retransmitted at the data link, network and transport layers.
Figure 5.4. Loopback at the transport layer Loopback adjustment Connect ETS-1000L to the Ethernet network and select Loopback layer by pressing L button. Additional parameters (IP address, MAC address, etc.) are being adjusted in the remote management mode (see section 6).
6.1 and 6.2, it is possible to configure device and view current settings. To manage device over Telnet protocol connect ETS-1000L to personal com- puter through the Ethernet interface. Loopback must be switched off.
Both devices should support the IEEE 802.3ah standard. ETS-1000L and remote device should be connected directly. Possible OAM states are described below. • Passive — passive mode. In passive mode, the port can only response to Ethernet OAM commands from the remote device, but cannot initiate the Loopback mode.
Figure 6.1. Connection diagram In accordance with connection diagram it is possible to switch loopback mode on for several devices ETS-1000L in series. The devices may be in the same or in the different subnets. Note: the loopback mode on the ETS-1000L devices may be switched off...
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1. Install tftp client on yor PC (WinAgents TFTP Client for example). 2. Enter in console terminal: tftp.exe -i 192.168.1.1 put C:\work\image_X.X.X.fs When the software package file is uploaded ETS-1000L will automatically reboot. Notes • If current and new versions of the software are very much differ- ent, settings are restored to default.
No connection Incorrect connection set- Check autonegotiation tings mode state and interface settings No telnet connection Loopback mode is on, in- Switch off Loopback mode correct cable connection and check cable connec- tion state ETS-1000L. Operating manual...
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