IT – Capacity increase in SAXESS for OMX Nordic Exchanges and Oslo Exchange November 6, 2008 (83/08)

We are continuously adjusting the data communication capacity to match with the data communication demands. We are experiencing an increase in the number of transactions within the activities on the NOREX platform (SAXESS). We have therefore decided to increase the capacity in steps. Our aim is to achieve this in the most efficient way.

We have split up our SAXESS system in three different partitions, one for equities, one for warrants, and one for fixed income. The aggregated data output rate from the three partitions is currently 34000 zB (compressed bytes per second). The decision is to increase partition 1 to with 5 000zB to a total of 25 000 zB from November 6 2008. Current capacity for Partition is 20 000zB, Partition 2 4 000zB and Partition 3 10 000zB.

Member actions to prepare for the capacity increase:

Members will need to take the following actions:
•	Verify that your own trading application(s) can cope with the increased capacity (a total of 39 000 zB). Your trading application is certified for 45 000zB, but we strongly recommend that you test your setups before the increases.

The test system (SAXTST3) is configured with regular load tests of 45 000zB. For detailed information please check separate information about the test systems on our member web pages.