WeOS
5.20.1

# 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
    ...

Note

See Port configuration on how to set MDI/MDIX on the aggregate ports.

Note

Validate connection between ETBNs by using ping command.

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