Alcatel-Lucent 7302 Information Manual page 720

15 — I-010G-B, I-020G-M, or I-040G-B unit data sheet
Table 15-10 I-010G-B, I-020G-M, and I-040G-B indoor ONT considerations and limitations
Considerations and limitations
When using multicast on multiple Ethernet ports, all Ethernet ports must have the same VLAN ID. If
the user-side VLAN IDs are all given the same VLAN ID, a common VLAN ID should result. If not, VLAN
4094 will be used
ONTs are not able to sufficiently buffer enough traffic between grants to support an EIR rate of
1Gb/s over multiple GEM ports. There are only 1.256 Gb/s buffers available in the SoC chip. The
buffers are divided among the number of configured GEM ports. Reducing the number of GEM ports
configured results in increased upstream buffering and higher upstream traffic rates.
Packets with less than 72 bytes are increased to exactly 72 bytes in size with padding
ONTs that use pre R04.00.10 software may not range if the distance from the LT card is less than 1km
The default optical thresholds for this ONT are as follows:
•
Low optical threshold: -27.00 dBm
•
High optical threshold: -8.00 dBm
15-10 November 2013 Alcatel-Lucent 7302 ISAM | 7330 ISAM FTTN | 7360 ISAM FX ONT R04.06.02
Edition 01 3FE 55873 AAAA TCZZA
ONT Product Information Guide