Provisioning LCAS

LCAS feature allows the adjustment of data capacity in real time without loss of data. It can be defined as an adjustment scheme that increases or decreases the capacity of a container that is transported SDH network using VC. LCAS offers the ability to automatically fine tune the bandwidth based on Quality of Service (QoS), Bandwidth on demand, Load Balancing and Fault recovery mechanism.

To provision LCAS,

Click Configuration > Facilities > VCG. The VCG Interface configuration page is displayed.
Click the desired VCG. The Provisioning VCG Interface page is displayed.
Click View VC Group. The View VC Group page is displayed.
Click the LCAS link under edit LCAS column for the VC you want to edit. The LCAS Provisioning Of VCG Association page is displayed.
Select Add for Transmit LCAS provision to enable the LCAS support. Select Remove for Transmit LCAS provision to disable LCAS support.
Click Submit. A confirmation page is displayed.
Click Accept Valid Modifications. A “Successfully Modified” message is displayed.

NOTE: LCAS support needs to be enabled or disabled at both the transmitter and receiver.

LCAS Parameters

Parameter	Description
VCG	The name of the Group to which the channel is associated.
Status	The status of the channel as either up or down.
Direction	The direction of VC on VCG.
Transmit LCAS Provision	Parameter to provision LCAS. Add: Allows sending the data on a particular channel which is already part of the VCG. Remove: Disables sending the data on a particular channel which is already part of the VCG.
Transmit Sequence number	Displays the transmit sequence number.
Receive sequence number	Displays the received sequence number.
Differential Delay (Milliseconds)	Displays the differential delay.
Tx CTRL (Tx Channel)	The Transmitted LCAS control value on the associated Tx channel.
Rx MST (Tx Channel)	Displays the receive MST value for the transmit channel.
Rx CTRL (Rx Channel)	The Received LCAS control value on the associated Rx channel.
Tx MST (Rx Channel)	Displays the transmit MST value for the receive channel.