UMN:CLI User Manual
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12.4.4 T-CONT Mode
Transmission containers (T-CONTs) are used for the management of upstream bandwidth
in PON section of the TC layer. T-CONTs dynamically receive grants, identified by Alloc-
ID, from the OLT. A single T-CONT can carry GEM traffic with various service classes. It
also accommodates one or more physical queues and aggregates them into a single
logical buffer so that this feature can be used for enhanced QoS implementation in
upstream direction.
Fixed BW
Assured BW
Non-Assured
BW
Best-Effort
BW
Guaranteed
Additional
Highest Priority
Lowest Priority
Fig. 12.6 Priority of T-CONT types
The provides the easy and efficient management solution using T-CONT concept with
the Traffic profile.
A GPON port is connected with multiple ONUs/ONTs via splitter. The GPON
encapsulation mode (GEM) frames are transmitted between the OLT and the ONUs
(ONTs). A GEM frame is identified by a GEM port ID. In the upstream direction, the T-
CONTs carry the data stream.
The Traffic profile is a collection of configurations about dynamic bandwidth allocation and
GEM port according to the service priority levels. You can configure each T-CONT to
have a priority value using GEM port number.
You need to open Traffic Profile Configuration mode to configure a T-CONT. A T-CONT ID
can include multiple T-CONTs and supports up to 8 priority queues per T-CONT.
To create a T-CONT ID in Traffic Profile Configuration mode, use the following command.
Creates a T-CONT ID.
TCONT-ID: T-CONT ID (1 to 32)
After opening T-CONT Configuration mode, the prompt changes from SWITCH(config-
traffic-pf[NAME])# to SWITCH(config-traffic-pf[NAME]-tcont[TCONT-ID])#.
V-RT data
Best effort data traffic
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