Subject: Re: am335x: no multicast reception over VLAN

From: Mugunthan V N <[email-masked]>
Date: Thu, 31 Mar 2016 15:32:35 +0530

On Thursday 31 March 2016 01:22 PM, Yegor Yefremov wrote:
> On Thu, Mar 31, 2016 at 8:37 AM, Mugunthan V N <[email-masked]> wrote:
>> On Thursday 31 March 2016 01:17 AM, Peter Korsgaard wrote:
>>>>>>>> "Mugunthan" == Mugunthan V N <[email-masked]> writes:
>>>
>>> Hi,
>>>
>>>  > You had received these packets as tcpdump will enable promiscuous mode
>>>  > so that you receive all the packets from the wire.
>>>
>>> FYI, you can use the -p option to tcpdump to not put the interface into
>>> promiscuous mode.
>>>
>>
>> Thanks for the information Peter Korsgaard.
>>
>> Yegor, can you provide tcpdump using -p as well in Grygorii commands.
> 
> Before VLAN configuration:
> 
> # switch-config -d
> cpsw hw version 1.12 (0)
> 0   : type: vlan , vid = 1, untag_force = 0x3, reg_mcast = 0x3,
> unreg_mcast = 0x0, member_list = 0x3
> 1   : type: mcast, vid = 1, addr = ff:ff:ff:ff:ff:ff, mcast_state = f,
> no super, port_mask = 0x3
> 2   : type: ucast, vid = 1, addr = 74:6a:8f:00:16:12, ucast_type =
> persistant, port_num = 0x0, Secure
> 3   : type: vlan , vid = 0, untag_force = 0x7, reg_mcast = 0x0,
> unreg_mcast = 0x0, member_list = 0x7
> 4   : type: mcast, vid = 1, addr = 01:00:5e:00:00:01, mcast_state = f,
> no super, port_mask = 0x3
> 5   : type: vlan , vid = 2, untag_force = 0x5, reg_mcast = 0x5,
> unreg_mcast = 0x0, member_list = 0x5
> 6   : type: mcast, vid = 2, addr = ff:ff:ff:ff:ff:ff, mcast_state = f,
> no super, port_mask = 0x5
> 7   : type: ucast, vid = 2, addr = 74:6a:8f:00:16:13, ucast_type =
> persistant, port_num = 0x0, Secure
> 8   : type: mcast, vid = 2, addr = 01:00:5e:00:00:01, mcast_state = f,
> no super, port_mask = 0x5
> 
> After VLAN configuration:
> 
> # switch-config -d
> cpsw hw version 1.12 (0)
> 0   : type: vlan , vid = 1, untag_force = 0x3, reg_mcast = 0x3,
> unreg_mcast = 0x0, member_list = 0x3
> 1   : type: mcast, vid = 1, addr = ff:ff:ff:ff:ff:ff, mcast_state = f,
> no super, port_mask = 0x3
> 2   : type: ucast, vid = 1, addr = 74:6a:8f:00:16:12, ucast_type =
> persistant, port_num = 0x0, Secure
> 3   : type: vlan , vid = 0, untag_force = 0x7, reg_mcast = 0x0,
> unreg_mcast = 0x0, member_list = 0x7
> 4   : type: mcast, vid = 1, addr = 01:00:5e:00:00:01, mcast_state = f,
> no super, port_mask = 0x3
> 5   : type: vlan , vid = 2, untag_force = 0x5, reg_mcast = 0x5,
> unreg_mcast = 0x0, member_list = 0x5
> 6   : type: mcast, vid = 2, addr = ff:ff:ff:ff:ff:ff, mcast_state = f,
> no super, port_mask = 0x5
> 7   : type: ucast, vid = 2, addr = 74:6a:8f:00:16:13, ucast_type =
> persistant, port_num = 0x0, Secure
> 8   : type: mcast, vid = 2, addr = 01:00:5e:00:00:01, mcast_state = f,
> no super, port_mask = 0x5
> 9   : type: vlan , vid = 100, untag_force = 0x0, reg_mcast = 0x5,
> unreg_mcast = 0x0, member_list = 0x5
> 10  : type: ucast, vid = 100, addr = 74:6a:8f:00:16:13, ucast_type =
> persistant, port_num = 0x0
> 11  : type: mcast, vid = 100, addr = ff:ff:ff:ff:ff:ff, mcast_state =
> f, no super, port_mask = 0x5
> 12  : type: mcast, vid = 2, addr = 01:80:c2:00:00:21, mcast_state = f,
> no super, port_mask = 0x5
> 
> During mulitcast receive:
> 
> # switch-config -d
> cpsw hw version 1.12 (0)
> 0   : type: vlan , vid = 1, untag_force = 0x3, reg_mcast = 0x3,
> unreg_mcast = 0x0, member_list = 0x3
> 1   : type: mcast, vid = 1, addr = ff:ff:ff:ff:ff:ff, mcast_state = f,
> no super, port_mask = 0x3
> 2   : type: ucast, vid = 1, addr = 74:6a:8f:00:16:12, ucast_type =
> persistant, port_num = 0x0, Secure
> 3   : type: vlan , vid = 0, untag_force = 0x7, reg_mcast = 0x0,
> unreg_mcast = 0x0, member_list = 0x7
> 4   : type: mcast, vid = 1, addr = 01:00:5e:00:00:01, mcast_state = f,
> no super, port_mask = 0x3
> 5   : type: vlan , vid = 2, untag_force = 0x5, reg_mcast = 0x5,
> unreg_mcast = 0x0, member_list = 0x5
> 6   : type: mcast, vid = 2, addr = ff:ff:ff:ff:ff:ff, mcast_state = f,
> no super, port_mask = 0x5
> 7   : type: ucast, vid = 2, addr = 74:6a:8f:00:16:13, ucast_type =
> persistant, port_num = 0x0, Secure
> 8   : type: mcast, vid = 2, addr = 01:00:5e:00:00:01, mcast_state = f,
> no super, port_mask = 0x5
> 9   : type: vlan , vid = 100, untag_force = 0x0, reg_mcast = 0x5,
> unreg_mcast = 0x0, member_list = 0x5
> 10  : type: ucast, vid = 100, addr = 74:6a:8f:00:16:13, ucast_type =
> persistant, port_num = 0x0
> 11  : type: mcast, vid = 100, addr = ff:ff:ff:ff:ff:ff, mcast_state =
> f, no super, port_mask = 0x5
> 12  : type: mcast, vid = 2, addr = 01:80:c2:00:00:21, mcast_state = f,
> no super, port_mask = 0x5
> 13  : type: mcast, vid = 2, addr = 01:00:5e:03:1d:47, mcast_state = f,
> no super, port_mask = 0x5
> 14  : type: ucast, vid = 100, addr = 66:22:04:bc:90:26, ucast_type =
> untouched , port_num = 0x2

I could see multicast address 01:00:5e:03:1d:47 is added to ALE table at
index 13, but it is added for VLAN id 2 ie eth1, did you ran the test
for eth1 or eth1.100?

Regards
Mugunthan V N