Kontron AT8940 Manual de usuario Pagina 31

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Board Features
16 AT8910/AT8940
www.kontron.com
2.4.1.2 40G Option (BCM56846 640 Gbps)
The Broadcom BCM56846 640 Gbps Ethernet Multilayer Switch with 18 integrated Warp Cores builds the core
of the 10G Fabric Interface. The Warp Cores are set in the required transfer mode; 40 GbE, 10 GbE, XFI, XAUI,
10GBASE-KR, 40GBASE-KR4 or XLAUI.
The 18 Warp Core cores are separated into four groups:
Group 0: Warpcore[4:0] with 164 Gbps bandwidth
Group 1: Warpcore[8:5] with 160 Gbps bandwidth
Group 2: Warpcore[13:9] with 160 Gbps bandwidth
Group 3: Warpcore[17:14] with 160 Gbps bandwidth
An additional 4 Gbps is allowed in Group 0 if WarpCore 0 is configured as 4x 1 GbE
The configuration of the Fabric Switch needs to limit the maximum bandwidth within the WarpCore Group.
The port mapping is defined in a way the maximum bandwidth could be reached in different chassis and
applications.
3
14
0 57
XAUI 10 GbE FC# 8
1 58
2 59
3 60
15
0 61
XAUI 10 GbE FC# 9
1 62
2 63
3 64
16
0 65
XAUI 10 GbE FC# 11
1 66
2 67
3 68
17
0 69
XAUI 10 GbE FC# 10
1 70
2 71
3 72
BCM56842 Warp-
Core Group
BCM56842
WarpCore
Lane SerDes Operation
Mode
Speed Connected to
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