Descripción del producto
28
256-639
Dynamic or Static
640-1023
Static
Table 2-3: Alloc-ID’s distribution by T-CONT type
Offered Load
Guaranteed
assignment
Additional
assignment
As
si
gn
ed
Ba
nd
w
id
th
Fi
xe
d
As
su
re
d
Su
bj
ec
t t
o
dy
na
m
ic
a
ss
ig
nm
en
t
M
ax
im
um
b
an
dw
id
th
R
L
(t)
R
L
(t)
R
L
(t)
R
L
(t)
R
L
(t)
Figure 2-12: Traffic distribution by service/client
2.9.2 MAC GPON DBA Algorithm
The MAC GPON DBA algorithm can use two different algorithms:
Status Reporting:
Based on the information that each ONU sends to the GPON MAC frames upstream. This information allows the GPON MAC
to know the use of queues of each of the ONUs and adjusting the bandwidth allocated to each application in terms of this
Traffic Monitoring:
Based on occupancy of bandwidth of each UN in recent broadcasts.
It is possible to configure the type of algorithm to use in allocating bandwidth for CBR non-profiles as Status Reporting or Traffic Monitoring at the
time of the creation of service corresponding traffic. The change of the type of DBA services already provisioned is in principle possible, except for
the hardware limitation.
2.9.3 Overbooking
The OLT system allows the overbooking of the GPON ports allowing the allocation of more than the overall aggregated port bandwidth in the
downstream (2,5Gb/s) and upstream (1,25Gb/s). The Downstream (DS) allocation is done by configuring the Bandwidth Profiles – BWP that are
responsible for assuring that the high priority packets (p.bit) are send to the OLT port in case of congestion. In the Upstream (US) the subscription
is assured via Dynamic Bandwidth Allocation (DBA) applied to the ONTs centrally controlled by the OLT.
Содержание OLT 769401
Страница 1: ...GPON OLT 8xPON 8xGbE 2x10GbE EN Ref 769401 User Manual w w w t e l e v e s c o m ...
Страница 2: ......
Страница 9: ...EN 9 ...
Страница 11: ...EN 11 ...
Страница 139: ...EN 139 Figure 6 9 SFP Module detailed information Figure 6 10 GPON Interfaces Status ...
Страница 149: ...EN 149 Figure 6 20 DHCP counters ...
Страница 473: ...EN 473 ...
Страница 474: ......
Страница 475: ......
Страница 476: ......
Страница 477: ...EN 477 ...
Страница 478: ...Descripción del producto 478 ...
Страница 479: ...EN 479 ...
Страница 480: ...Descripción del producto 480 ...
Страница 481: ...EN 481 ...
Страница 482: ...Descripción del producto 482 ...