Epl-2000 Operation; Address Table; Learning; Forwarding & Filtering - Planet EPL-2000 User Manual

2-port gepon managed olt

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The OLT switch is implemented with an address table. This address table os composed of many entries. Each entry is used to

store the address information on some nodes on the network, including MAC address, port number, etc.

When one packet comes in from any port, the OLT Switch will record the source address, port number, and other related

information in the address table. This information will be used to decide either forwarding or filtering for future packets.

5.3 Forwarding & Filtering

When one packet comes from some port of the Ethernet Switching, it will also check the destination address besides the source

address learning. The OLT Switch will look up the address table for the destination address. If not found, this packet will be

forwarded to all the other ports except the port, which this packet comes in. And these ports will transmit this packet to the

network it connected. If found, and the destination address is located at a different port from this packet comes in, the OLT

Switch will forward this packet to the port where this destination address is located according to the information from the

address table. But, if the destination address is located at the same port with this packet that comes in, then this packet will be

filtered, thereby increasing the network throughput and availability

The STP ports on the Switch have built-in "Auto-negotiation". This technology automatically sets the best possible bandwidth

when a connection is established with another network device (usually at Power On or Reset). This is done by detecting the

modes and speeds at the second of both devices are connected and capable of. Both 10BASE-T and 100BASE-TX devices can

connect with the port in either Half- or Full-Duplex mode.

If attached device is:

10Mbps, no auto-negotiation

10Mbps, with auto-negotiation

100Mbps, no auto-negotiation

100Mbps, with auto-negotiation

5. EPL-2000 OPERATION

100Base-TX port will set to:

10Mbps.

10/20Mbps (10BASE-T/Full-Duplex)

100Mbps

100/200Mbps (100BASE-TX/Full-Duplex)

User's Manual of EPL-2000

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