00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor DRAM Controller (rev 09)
    Subsystem: Dell Device 0577
    Flags: bus master, fast devsel, latency 0
    Capabilities: <access denied>
    Kernel driver in use: ivb_uncore

00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd
Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA
controller])
    Subsystem: Dell Device 0577
    Flags: bus master, fast devsel, latency 0, IRQ 30
    Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
    Memory at e0000000 (64-bit, prefetchable) [size=256M]
    I/O ports at f000 [size=64]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: <access denied>
    Kernel driver in use: i915

00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI])
    Subsystem: Dell Device 0577
    Flags: bus master, medium devsel, latency 0, IRQ 26
    Memory at f7d20000 (64-bit, non-prefetchable) [size=64K]
    Capabilities: <access denied>
    Kernel driver in use: xhci_hcd

00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
Connection (rev 04)
    Subsystem: Dell Device 052c
    Flags: bus master, fast devsel, latency 0, IRQ 29
    Memory at f7d00000 (32-bit, non-prefetchable) [size=128K]
    Memory at f7d39000 (32-bit, non-prefetchable) [size=4K]
    I/O ports at f080 [size=32]
    Capabilities: <access denied>
    Kernel driver in use: e1000e

00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
    Subsystem: Dell Device 0577
    Flags: bus master, medium devsel, latency 0, IRQ 16
    Memory at f7d38000 (32-bit, non-prefetchable) [size=1K]
    Capabilities: <access denied>
    Kernel driver in use: ehci-pci

00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family
High Definition Audio Controller (rev 04)
    Subsystem: Dell Device 0577
    Flags: bus master, fast devsel, latency 0, IRQ 31
    Memory at f7d30000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family
PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
    Capabilities: <access denied>
    Kernel driver in use: pcieport

00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family
PCI Express Root Port 5 (rev c4) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
    I/O behind bridge: 0000e000-0000efff
    Memory behind bridge: f7c00000-f7cfffff
    Prefetchable memory behind bridge: 00000000f0000000-00000000f00fffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport

00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
    Subsystem: Dell Device 0577
    Flags: bus master, medium devsel, latency 0, IRQ 23
    Memory at f7d37000 (32-bit, non-prefetchable) [size=1K]
    Capabilities: <access denied>
    Kernel driver in use: ehci-pci

00:1f.0 ISA bridge: Intel Corporation Q77 Express Chipset LPC Controller
(rev 04)
    Subsystem: Dell Device 0577
    Flags: bus master, medium devsel, latency 0
    Capabilities: <access denied>
    Kernel driver in use: lpc_ich

00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset
Family 6-port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
    Subsystem: Dell Device 0577
    Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 27
    I/O ports at f0d0 [size=8]
    I/O ports at f0c0 [size=4]
    I/O ports at f0b0 [size=8]
    I/O ports at f0a0 [size=4]
    I/O ports at f060 [size=32]
    Memory at f7d36000 (32-bit, non-prefetchable) [size=2K]
    Capabilities: <access denied>
    Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus
Controller (rev 04)
    Subsystem: Dell Device 0577
    Flags: medium devsel, IRQ 10
    Memory at f7d35000 (64-bit, non-prefetchable) [size=256]
    I/O ports at f040 [size=32]

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
    Subsystem: TP-LINK Technologies Co., Ltd. TG-3468 Gigabit PCI Express
Network Adapter
    Flags: bus master, fast devsel, latency 0, IRQ 28
    I/O ports at e000 [size=256]
    Memory at f7c00000 (64-bit, non-prefetchable) [size=4K]
    Memory at f0000000 (64-bit, prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: r8169

Marcus,
when I unplug the RX dautherboread from the  USRP or  block the
photodetector  and run the flow graph i get the same BER mentioned above
i.e 0.007... how can this be possible even if there is nothing  at receiver
to compare with?  I totally agree with you there is no perfect results in
real world but I think the BER block should react at least when blocking
path. do you still agree with me that there is something wrong with the
flow graph and not the network?


Thank you for your time.
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