On 03/15/2019 06:49 AM, Janos Buttgereit via USRP-users wrote:
Hi Ettus Users,
I wanted to friendly bump up this topic again. It’s really blocking me
from working with the N310 if this error persists. I’m a bit lost with
finding out why the MAC address of the network interfaces cannot be
looked up, looked through the implementation of commit_xport, hover
having zero python knowledge and not much in-depth networking
knowledge I can’t really figure out what could be the source of the
error. So, any pointers are greatly appreciated!
Thanks again
Janos
What happens if you just:
uhd_usrp_probe
or
uhd_usrp_probe --args "addr=192.167.1.100"
or
uhd_usrp_probe --args "addr=192.168.10.2"
Am 01.03.2019 um 13:15 schrieb Janos Buttgereit via USRP-users
<usrp-users@lists.ettus.com <mailto:usrp-users@lists.ettus.com>>:
Hi,
I’m about to port an application that was working with a setup of two
X300 devices to a new N310 device.
For a first step the N310 should simply be used to stream four RF
channels to a host. However before using it for streaming I wanted to
perform some simple operations like getting the device tree through
the uhd_usrp_probe command, which fails at the moment. I installed a
current version of the SD card image a few days ago and my host is
running an UHD version compiled from the tip of the UHD repo a few
days ago. I suspect this is a network config error, however I’m not
sure and sadly I’m no networking expert.
A brief overview of my setup:
A host PC, running Ubuntu equipped with a 2x10Gbit Ethernet card and
two usual Gbit Ethernernet cards. One 1Gbit ethernet port is used for
internet connection, the other one is connected to a Wifi Router,
running a DHCP server in the address space 192.167.1.x. The N310 is
connected to this router, the DHCP server assigns the address
192.167.1.100 to the N310. Pinging the device works as well as
establishing an SSH connection to it. The two SFP ports are connected
to the 10Gbit card of the host, on the host side those ports have the
IP address 192.168.10.1 and 192.168.20.1. I loaded an XG FPGA image
to use both SFP ports at 10Gbit speed and they respond to pings. To
summarize, this is the current network config as reported by the system:
sdr@NTLabDSP:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state
UP group default qlen 1000
link/ether 00:0a:f7:81:d5:26 brd ff:ff:ff:ff:ff:ff
inet 192.167.1.102/24 brd 192.167.1.255 scope global dynamic enp4s0
valid_lft 4745sec preferred_lft 4745sec
inet6 fe80::2ddf:29cd:ab15:aa68/64 scope link
valid_lft forever preferred_lft forever
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP group default qlen 1000
link/ether 98:90:96:c6:92:3c brd ff:ff:ff:ff:ff:ff
inet 10.211.21.102/23 brd 10.211.21.255 scope global dynamic eno1
valid_lft 3812sec preferred_lft 3812sec
inet6 2a02:c6a0:3071:53fc:f1:1e14:9cf0:3521/128 scope global dynamic
valid_lft 904sec preferred_lft 604sec
inet6 fe80::58d:8415:1a20:604e/64 scope link
valid_lft forever preferred_lft forever
4: enp5s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8000 qdisc mq
state UP group default qlen 1000
link/ether 00:1b:21:bc:19:96 brd ff:ff:ff:ff:ff:ff
inet 192.168.10.1/24 scope global enp5s0f0
valid_lft forever preferred_lft forever
inet6 fe80::21b:21ff:febc:1996/64 scope link
valid_lft forever preferred_lft forever
5: enp5s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 8000 qdisc mq
state UP group default qlen 1000
link/ether 00:1b:21:bc:19:97 brd ff:ff:ff:ff:ff:ff
inet 192.168.20.1/24 scope global enp5s0f1
valid_lft forever preferred_lft forever
inet6 fe80::21b:21ff:febc:1997/64 scope link
valid_lft forever preferred_lft forever
This host setup used to work flawlessly with the two X300 units.
Now when trying to run uhd_usrp_probe I think I got that I need to
specify all three addresses, the primary and secondary address of the
SFP ports that handle streaming as well as the management port
address. So I pass those three parameters as args to uhd_usrp_probe.
However when doing so, I get the error "Could not find MAC address
for IP address 192.168.20.1“ which seems a bit weird to me, as to my
knowledge a MAC address is a hardware property of the network
interface and therefore cannot be misconfigured. So is this a network
configuration error or am I doing something different wrong? For the
sake of completeness, here is the complete output of uhd_usrp_probe:
sdr@NTLabDSP:~$ uhd_usrp_probe
--args="addr=192.168.10.2,second_addr=192.168.20.2,mgmt_addr=192.167.1.100"
[INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800;
UHD_3.15.0.git-13-g52138314
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.167.1.100,type=n3xx,product=n310,serial=316CD18,claimed=False,addr=192.168.10.2,second_addr=192.168.20.2
[INFO] [MPM.PeriphManager] init() called with device args
`product=n310,mgmt_addr=192.167.1.100,second_addr=192.168.20.2,clock_source=internal,time_source=internal'.
[ERROR] [RPC] Could not find MAC address for IP address 192.168.20.1
[ERROR] [MPMD] Failure during block enumeration: RuntimeError: Error
during RPC call to `commit_xport'. Error message: Could not find MAC
address for IP address 192.168.20.1
[ERROR] [MPM.RPCServer] Uncaught exception in method commit_xport
:Could not find MAC address for IP address 192.168.20.1
Traceback (most recent call last):
File "/usr/lib/python3.5/site-packages/usrp_mpm/rpc_server.py",
line 182, in new_claimed_function
return function(*args)
File
"/usr/lib/python3.5/site-packages/usrp_mpm/periph_manager/n3xx.py",
line 546, in commit_xport
return self._xport_mgrs['udp'].commit_xport(sid, xport_info)
File
"/usr/lib/python3.5/site-packages/usrp_mpm/xports/xportmgr_udp.py",
line 321, in commit_xport
sender_addr))
RuntimeError: Could not find MAC address for IP address 192.168.20.1
Error: RuntimeError: Failed to run enumerate_rfnoc_blocks()
Thank you in advance for your help!
Janos
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