Control And Management; Table 6-14 Modular Ont Mac Fpga And Standards; Table 6-15 Ge Multilayer Switch Features - Alcatel-Lucent 7342 Product Information Manual

Functions
PON
QoS
Security
VLAN
Table
Features
VLAN cross-connect
IGMP mirror
IP multicast (IPMC)
Priority-level mapping
Differentiated service code
point (DSCP) QoS mode
(upstream)
Line rate switching
Double VLAN tagging
On-chip data packet
memory

Control and management

The OBC provides the communication control and processing functions, as well as
management functions to the multilayer switch and the service units.
The OBC provides the functions as described in Table 6-16.
Alcatel-Lucent 7342 ISAM FTTU ONT R04.05.06
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6 — LP MDU, MDU, and modular ONT hardware functional blocks

Table 6-14 Modular ONT MAC FPGA and standards

Standards supported
The GPON FPGA supports ITU-T G984.2, G984.3, and G984.4, which require a
GPON to support a maximum of 2.5 Gb/s symmetrical line rate.
The GPON FPGA supports mapping the eight priority levels of IEEE 802.1p/q to
equivalent eight priority queues. The mapping of upstream queues and port IDs
are configurable.
The GPON FPGA supports advanced encryption standard (AES), a standard
specified by the U.S. National Institute of Standards and Technology.
The GPON FPGA supports the IEEE 802.1q-based VLAN tag extraction and
insertion function for internal traffic grooming, frame check sequence (FCS)
checking and calculating functions.
6-15 describes the features of the GE multilayer switch.

Table 6-15 GE multilayer switch features

Descriptions
The cross-connection is between the VLAN and the Ethernet network.
The IGMP mirror function enables IGMP snooping. The IGMP mirror
function extracts a packet from the data stream that originates from
the service unit and sends the packet to the OBC.
The IPMC is used to enable video stream multicasting and replication
towards the respective service interfaces.
The eight priority levels of IEEE 802.1p/q are mapped to eight
priority queues for each Ethernet port. Priorities are configurable for
each Ethernet port.
The switch extracts the Ethernet packet, accesses the IP layer, reads
the DSCP value, and inserts a VLAN tag into the Ethernet packet with
the corresponding 802.1p value before forwarding the packet to the
GPON interface.
The line-rate switching is applicable to all packet sizes.
The switch supports two VLAN tagged Ethernet frames with a packet
size of 2000 bytes.
The switch supports 1 Mb of on-chip data packet memory.
July 2008
Edition 01 ONT Product Information Manual
6-15