Televes 769501 - Refs. 769501-769502 WI-FI Antennas; Multiple Qos Per VLAN; Policing;Rate Limiting; Downstream Qos

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2.12.3 Refs. 769501-769502 WI-FI Antennas
The ONT provides a MIMO 2x2 topology Wireless antenna capability.
The ONT has internal, Omni-directional antennas with a gain of 1.6dBi.
2.13 Multiple QoS per VLAN
The Refs. 769501-769502 supports 802.1p QoS per VLAN services in which several ows (one per allowed pbit) are embedded in the same VLAN.
According to the applied conguration, the Refs. 769501-769502 performs a per-ow QoS policy: dropping trac marked with not allowed pbits
and limiting to the congured value the data rate of the allowed ows.
The Refs. 769501-769502 performs transparent VLAN translation. It is transparent to upper layer protocols, such as ARP, RIP, DHCP, IGMP, PPP, etc.
2.14 Policing/Rate Limiting
2.14.1 Downstream QoS
The OLT system provides several QoS mechanisms, that can be targeted to the ow characterized by one or two VLAN according with the type of
service, or can be targeted to the packets priority, where each p-bit is mapped in one of eight queues of each port.
For each OLT ports are associated eight queues, for each of these queues is possible to congure the p-bit mapping in one of the queues, the
scheduler type (Strict Priority or Weighted Fair Queuing) and the minimum and maximum bandwidth of each queue.
In the downstream direction the ingress trac rst passes by a policer congured to each ONT service, which is dened by one or two tags. After
this the trac is put in a queue according with the p-bit/queue mapping. Each of these queues is associated with a scheduler and a policer. Then
the trac ows to the GPON interface and when it arrives to the ONT it will pass by a mapping block which will map the trac in one of the eight
queues according with the p-bits, these queues have a Strict Priority scheduler in order to guarantee that the most prioritized trac passes rst.
Figure 2-10: Downstream QoS Diagram
2.14.2 Upstream QoS
In the upstream direction, for each T-CONT the ingress trac in the ONT passes by a mapping block that maps the trac in one of the eight queues
according with the p-bit, these queues have a Strict Priority Scheduler. The ONT “waits” until the OLT assigns a transmission timeslot for that T-
CONT, so that the most prioritized queues are the ones that transmit rst. In the OLT ingress, the trac is put into a queue according with what
is dened in the queue/p-bit mapping. Each of these queues has an associated scheduler and policer that control the trac sent to the uplink.