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  •     QAD Glossary

  • Network Recommendations
    Be aware of both sizing notes from this table and review Reference: Network Sizing Details before finalizing network recommendations for the customer.
     
    Network Bandwidth
    LAN
    WAN
    (Effect of Latency)
    Network Card
    Comment
    ERP database to BI database
    10+ MB/s
    (80 Mbps)
    4 MB/s 1
    (32 Mbps)
    Ensure at least 1-Gbps card
    The WAN figure is a guideline figure and depends on the actual latency involved (seeWAN Considerations for details).
    Backup of BI database
    1 Gbps
    N/A
    Ensure at least 1-Gbps card
     
    Remote Client to BI Portal
    80-140 kB/s
    (640 – 1120 kbps) per user
    50+ kB/s 2
    (400+ kbps) per user
     
    Ensure that these rates are minimum bandwidth per user for each remote client to BI Portal user
    1
    Increasing latency (on WANs) has a very significant effect on slowing down the transfer rate between the ERP database and the BI database. Make very careful measurement of the network quality (latency and packet loss, bandwidth) of any customer proposing a WAN-based separation between the ERP database and the BI database servers (see Reference: Network Sizing Details for details)
    2
    Testing has shown that client response times are expected to slow down by up to 100% across a WAN with a latency of 300-400 ms. Responsiveness slows down across Wide Area Networks.