The Xetra® Market Data Interface (MDI) is an UDP-based multicast interface which provides netted aggregated market data (instrument prices, order book depth or indices) with a market depth up to 10 in FIX 5.0 in FAST 1.2 format.
Because of the netting and aggregating of the market data, bandwidth consumption is much lower than for the Enhanced Broadcast Solution (EnBS).
It is a low footprint architecture in which customers have a free choice of platform and operating system.
The data disseminated over a multicast network in the form of broadcast streams is offered via two redundant interface services (A and B). Customers are able to receive the relevant data by subscribing the appropriate broadcast stream. As multicast reception is not reliable, it is recommended to subscribe to the appropriate broadcast streams via both interface services (A and B), so that in the case of loss of data of one interface service the data can be obtained from the second interface service.
In contrast to the Enhanced Broadcast Solution (EnBS), it is also possible to obtain index data via MDI.
Please note that MDI does provide any instrument reference data.
For further questions the Technical Helpdesk is at your disposal.