Sorry it took a few days but heres some logs.
Working beaglebone, Unit #1542:
dmesg output when plugging in a cable:
[ 74.039867] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full -
flow control off
[ 74.040069] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 74.162638] 8021q: 802.1Q VLAN Support v1.8
[ 74.162796] 8021q: adding VLAN 0 to HW filter on device eth0
maintenance@beaglebone:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 38:d2:69:52:69:10
inet addr:192.168.2.155 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: 2601:18d:8901:ec80:3ad2:69ff:fe52:6910/64
Scope:Global
inet6 addr: fe80::3ad2:69ff:fe52:6910/64 Scope:Link
UP BROADCAST RUNNING MULTICAST DYNAMIC MTU:1500 Metric:1
RX packets:34 errors:0 dropped:0 overruns:0 frame:0
TX packets:90 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4103 (4.0 KiB) TX bytes:15847 (15.4 KiB)
Interrupt:173
Iperf works as a server:
maintenance@beaglebone:~$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.155 port 5001 connected with 192.168.2.188 port 11268
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 114 MBytes 94.9 Mbits/sec
Iperf works as a client too:
maintenance@beaglebone:~$ iperf -c 192.168.2.188
------------------------------------------------------------
Client connecting to 192.168.2.188, TCP port 5001
TCP window size: 43.8 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.155 port 45668 connected with 192.168.2.188 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 113 MBytes 94.7 Mbits/sec
Unit #5788:
dmesg output when plugging in a cable:
[ 73.783078] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full -
flow control rx/tx
[ 73.783175] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 73.873892] 8021q: 802.1Q VLAN Support v1.8
[ 73.873966] 8021q: adding VLAN 0 to HW filter on device eth0
Despite what's shown in dmesg the beaglebone auto negotiates with the
switch to 100Mbps at half duplex (not full). The link lights on both
ends (beaglebone and switch) are on. The device cannot get an address:
maintenance@beaglebone:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 04:79:b7:ac:27:ba
inet6 addr: fe80::679:b7ff:feac:27ba/64 Scope:Link
UP BROADCAST RUNNING MULTICAST DYNAMIC MTU:1500 Metric:1
RX packets:1 errors:0 dropped:0 overruns:0 frame:0
TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:590 (590.0 B) TX bytes:6374 (6.2 KiB)
Interrupt:173
Unit #5104:
dmesg output when plugging in a cable:
[ 106.355039] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full -
flow control off
[ 106.355138] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 106.430626] 8021q: 802.1Q VLAN Support v1.8
[ 106.430698] 8021q: adding VLAN 0 to HW filter on device eth0
does get an address:
maintenance@beaglebone:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 04:79:b7:a3:6b:e8
inet addr:192.168.2.151 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::679:b7ff:fea3:6be8/64 Scope:Link
inet6 addr: 2601:18d:8901:ec80:679:b7ff:fea3:6be8/64 Scope:Global
UP BROADCAST RUNNING MULTICAST DYNAMIC MTU:1500 Metric:1
RX packets:36 errors:0 dropped:0 overruns:0 frame:0
TX packets:87 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4151 (4.0 KiB) TX bytes:17119 (16.7 KiB)
Interrupt:173
Iperf works as a server (using iperf -c 192.168.2.151 on the other end):
maintenance@beaglebone:~$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.151 port 5001 connected with 192.168.2.188 port 10788
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 113 MBytes 94.7 Mbits/sec
Iperf locks up completely when the roles are reversed. I had to
terminate the process on the other computer, and it gave crazy results
on the beagle:
maintenance@beaglebone:~$ iperf -c 192.168.2.188
------------------------------------------------------------
Client connecting to 192.168.2.188, TCP port 5001
TCP window size: 43.8 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.151 port 53494 connected with 192.168.2.188 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-139.2 sec 4.00 GBytes 247 Mbits/sec
Clearly it's having problems sending packets in one of the directions.
Unit #1900:
No dmesg change when plugging in cable.
No link lights (on either end).
No address:
maintenance@beaglebone:~$ ifconfig
eth0 Link encap:Ethernet HWaddr ec:24:b8:9a:7e:9c
UP BROADCAST MULTICAST DYNAMIC MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:173
On Tuesday, September 15, 2020 at 6:49:01 PM UTC-4 RobertCNelson wrote:
> On Mon, Sep 14, 2020 at 12:58 PM suprock tech <[email protected]> wrote:
> >
> > beagle bone black, rev c
>
> When you say "fail" can you provide any dmesg info or kernel log, or
> serial log or, or...
>
> Regards,
>
> --
> Robert Nelson
> https://rcn-ee.com/
>
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/beagleboard/64bbd315-34f5-49c1-b541-ea637a38bd15n%40googlegroups.com.
