Multicast between end devices in two consists HowTo

This document describes how to configure two CN’s managed by two ETBN’s in two consists.

See Figure 1 below

          cst1         cst2
        .-------.    .-------.
       /  UUID1  \  /  UUID2  \
       '---------'  '---------'
        .-------.    .-------.
      --+       +----+       +--     dir1 = (ethX5, ethX6)
  <-dir1| etbn1 |    | etbn2 |dir2-> dir2 = (ethX7, ethX8)
      --+       +----+       +--
        '-+--+--'    '-------'
          |                |
        --+-+            --+-+ CN1 vlan10 (ethX3)
            |                |
        end-device       end-device
        sender           receciver

Figure 1: Two consists with one ETBN managing one consist net each.

NOTE:The IEC 61375 standard defines both static multicast groups (train wide) and dynamic multicast groups (configurable). Static multicast groups are predefined in WeOS while dynamic groups are added via the CLI.

Configuration

To test both of these multicast types a dynamic group 239.193.0.1 is configured.

etbn1:#> configure
etbn1:/config/#> vlan 10
Creating new VLAN vid:10 with name: vlan10
etbn1:/config/vlan-10/#> untagged ethX3
etbn1:/config/vlan-10/#> end
etbn1:/config/#> iface vlan10
etbn1:/config/iface-vlan10/#> no inet
etbn1:/config/iface-vlan10/#> inet static 10.10.0.1/18
etbn1:/config/iface-vlan10/inet-static-10.10.0.1/#> end
etbn1:/config/iface-vlan10/#> end
etbn1:/config/#> ttdp
Activating TTDP with default settings.
DNS Server activated
etbn1:/config/ttdp/#> uuid 11111111-1111-1111-1111-111111111111
etbn1:/config/ttdp/#> node 1 ecn 1
etbn1:/config/ttdp/#> ecn 1 vlan10
etbn1:/config/ttdp/#> dir1 ethX5,ethX6
Remember to manually set mdi/mdi-x mode
 in port settings for all agg ports.
etbn1:/config/ttdp/#> dir2 ethX7,ethX8
Remember to manually set mdi/mdi-x mode
 in port settings for all agg ports.
etbn1:/config/ttdp/#> local-id 1
etbn1:/config/ttdp/#> mroute group 239.193.0.1 out 1,etb
Adding multicast route for 239.193.0.1
etbn1:/config/ttdp/#> end
TTDP: Created VLAN 492. Note that this VLAN will not be deleted automatically
  if TTDP is deactivated.
etbn1:/config/#> vlan 2
Creating new VLAN vid:2 with name: vlan2
etbn1:/config/vlan-2/#> no multicast-snooping
etbn1:/config/vlan-2/#> untagged lag-dir1,lag-dir2
etbn1:/config/vlan-2/#> end
etbn1:/config/#> end
Applying configuration.
Configuration activated.  Remember "copy run start" to save to flash (NVRAM**.
etbn1:/#>

Now, repeat the exact steps above in the second ETB node. For brevity, only the steps that differs will be shown below.

...
etbn2:/config/ttdp/#> uuid 22222222-2222-2222-2222-222222222222
...