EVS XS User Manual download pdf (Page 43)

Reference Bandwidth

The table below specifies the reference GbE bandwidth used for calculations in this

section. However, the effective bandwidth depends on network behavior, which only

partly relies on the EVS server.

Gigabit Connection Type

Real-Time Transfers Single Transfer Speed

Backup Restore Backup Restore

1GbE (Gigabit-H3X) 70 MB/s 65 MB/s 65 MB/s 40 MB/s

1GbE (10GbE board) 80 MB/s 70 MB/s 80 MB/s 70 MB/s

2 GbE (LACP teaming) 160 MB/s 140 MB/s 160 MB/s 140 MB/s

10GbE 220 MB/s 100 MB/s 200 MB/s 80 MB/s

Example

How many real-time transfers can be processed over a 1GbE network if I work with Avid

DNxHD® 120 Mbps in PAL, and if the maximum GbE bandwidth on my network is

70MB/s?

Calculation: Maximum GbE bandwidth / actual block-based bandwidth = real time

transfers

70MB/s / 14.9MB/s = 4.7 real time transfers.

Important Recommendations

• For 6-channel configuration, maximum bitrates for Avid DNxHD® or Apple ProRes

422 should be 220Mbps (NTSC) or 185Mbps (PAL).

• When using the Avid DNxHD® codec, we advise to work at 100Mbps if the picture

quality is satisfactory so that the XS can sustain 6 local channels + 5 network

transfers.

HARDWARE TECHNICAL REFERENCE MANUAL XS Server 12.05

4. Software Specifications 33

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EVS XS User Manual Page 43