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ping fail with switch ports on LSDK20.04 v5.4 kernel image and rootfs on nxp-ls1028

Question asked by Tang zhantao on Jun 10, 2020
Latest reply on Jun 23, 2020 by Tang zhantao

Hi experts,


I am now working on testing the tsn functionality on felix switch of nxp-ls1028, and I find that

the ping fail with two boards(board A and board B) connected by swp0s with the switch configs as LSDK2004 user manual:


ifconfig eno2 up
ip link add name switch type bridge
ip link set switch up
ip link set swp0 master switch && ip link set swp0 up
ip link set swp1 master switch && ip link set swp1 up
ip link set swp2 master switch && ip link set swp2 up
ip link set swp3 master switch && ip link set swp3 up


Set switch ip on two board, and ping each other:

$ ifconfig switch /* On board A */
$ ifconfig switch /* On board B */
$ ping /* On board A */


ping shows:

root@localhost:~/tsntest/linuxptp-configs# ping
PING ( 56(84) bytes of data.
From icmp_seq=1 Destination Host Unreachable
From icmp_seq=2 Destination Host Unreachable
From icmp_seq=3 Destination Host Unreachable



and on board A, it did not get the mac of board B 

root@localhost:~/tsntest/linuxptp-configs# arp -a
? ( at <incomplete> on switch
? ( at <incomplete> on switch


on board B, it got the mac of board A successfully:

root@localhost:~/tsntest/linuxptp-configs# arp -a
? ( at 6a:1f:1e:02:cc:69 [ether] on switch


the kernel version on these two boards is the same:

Linux localhost 5.4.3 #3 SMP PREEMPT Tue Jun 9 17:17:31 CST 2020 aarch64 aarch64 aarch64 GNU/Linux



Is there any known issues on switch ports?