Monday 10 October 2016

What is Link Capacity Adjustment Scheme ( LCAS ) technology?

With the diverse and complex development of the services transmitted in the Transmission network, the demands for various access bandwidths have increased. As a result, the earlier monotone bandwidths (such as a VC-4) do not meet the requirement. This has led to the emergence of the concatenation technology. Concatenation is classified into adjacent concatenation and virtual concatenation. As per information provided by HybridmediaWorks Web Development Company Rawalpindi The virtual concatenation is more flexible than the adjacent concatenation. The virtual concatenation also has a higher bandwidth utilization. The problems in both the adjacent concatenation and virtual concatenation are as follows:

·  When any physical channel fails, all the concatenated channels fail and all the services are interrupted.
·  After services are set up, if you adjust the bandwidth of the services, the services are affected to a great extent.
The link capacity adjustment scheme (LCAS) technology provides a solution to the preceding problems. LCAS improves and complements the virtual concatenation technology. LCAS dynamically adjusts the number of virtual containers required for service mapping to meet the bandwidth requirements of various services. Through LCAS, the bandwidth utilization increases and the robustness of virtual concatenation is enhanced.



NOTE:

LCAS is applicable to only the virtually concatenated channels.
The advantages of adopting the LCAS function on the network are as follows:

·  LCAS dynamically adjusts (adds or deletes) the service bandwidth without affecting the availability of the existing services.
·  When some of the physical channels in a virtual concatenation group fail, LCAS helps to shield the failed channels and the other physical channels continue to transmit the services normally. This prevents the services from being interrupted when some of the physical channels fail. After the failed physical channels are restored, they can transmit services again.Thanks to the information provided by HybridMediaWorks Website Designer in Islamabad

LCAS complies with the following standards:
·  ITU-T G.806
·  ITU-T G.7042/Y.1305 (2005)

No comments:

Post a Comment