Table 1-3 Package B Ont Considerations And Limitations; Table 1-4 Package C Ont Considerations And Limitations - Alcatel-Lucent 7330 Product Information Manual

1 — ONT and MDU overview
Considerations and limitations
When either tip or ring is grounded, DGNONTPOTS tip to ground and ring to ground restrictive
measurements are simultaneously reported as 0 ohms
(2 of 2)
Package B ONT considerations and limitations
Table
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
Package B 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 of less than 64 bytes are increased to 100 bytes in size with padding under the following
conditions:
•
•
Package B ONTs that use pre R04.00.10 software may not range if the distance from the LT card is
less than 1km
Package C ONT considerations and limitations
Table
Considerations and limitations
Support for up to 32 GEM ports per Ethernet UNI
Support for 7 T-CONTs including the OMCI T-CONT
Ethernet OAM (802.1 ag) is not supported
TPID overwrite is not supported
Anti-spoofing is not supported
802.1x is not supported
IGMPv3 snooping with SSM is not supported
VLAN translation is supported prior to replication for downstream IPTV multicast. The same VLAN
operation must be provisioned for all Ethernet UNIs participating in IPTV multicasting
The ONT will not support sending some untagged multicast frames through one Ethernet UNI while
sending other tagged multicast frames through another Ethernet UNI
(1 of 2)
1-10
1-3 lists the considerations and limitations for Package B ONTs.

Table 1-3 Package B ONT considerations and limitations

in a downstream direction
in an upstream direction only if the ONT has more than 2 Ethernet ports
1-4 lists the considerations and limitations for Package C ONTs.

Table 1-4 Package C ONT considerations and limitations

March 2011
ONT Product Information Guide Edition 01
Alcatel-Lucent 7330/7302 ISAM FTTN R04.02.42a
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