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Quantitative Finance · Glossaire

Qu'est-ce que « Unicast dissemination » ?

Definition 12.1 Networks, Hardware and Trading Infrastructure · Chapitre 12 — The Asia-Pacific Map

Unicast dissemination is the distribution of market data by sending a separate copy of each message to each recipient, over a connection per recipient (typically TCP), so that one sender transmits the copies one after another.

The two-level unicast design of NSE’s TCP tick-by-tick feed as SEBI’s 2019 order describes it, schematically: the centre sends to its distribution servers in their login order, each server’s ports send to their members in the members’ login order. Multicast replaces both queues with one copy that the network replicates.
Figure 12.2. The two-level unicast design of NSE’s TCP tick-by-tick feed as SEBI’s 2019 order describes it, schematically: the centre sends to its distribution servers in their login order, each server’s ports send to their members in the members’ login order. Multicast replaces both queues with one copy that the network replicates.
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