Saturday , November 18 2017
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Multicast

PIM SM on Huawei S5700

I wanted to use AR routers to prepare PIM SM lab but it turned out that there is a problem with cooperation between multicast source and AR router. Of course I am talking about network simulator eNSP. Finally I decided to use eNSP with S5700. So we have topology like in the last two posts:

  1. Configure VLANs, VLAN interfaces and IP addresses based on the topology (omitted).
  2. Configure OSPF to ensure connectivity between switches (omitted).
  3. Enable multicast on both switches.
  4. Enable PIM SM on all interfaces.
  5. Enable IGMP on receivers’ interfaces.
  6. Set static RP for both switches (Loopback0 of SwitchB).
  7. Address of multicast group G: 225.1.1.1.
  8. Address of multicast group S: 10.10.10.100.

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PIM DM control messages

To understand how PIM DM works, just look at control messages generated.

Let’s take topology from the last lab:

PIM DM topology on Huawei S5700

After PIM DM is configured on interfaces between neighbors, both devices periodically send HELLO messages to each other, to discover neighbors and maintain the neighbor relationship:

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PIM DM on Huawei S5700

PIM DM topology on Huawei S5700

  1. Configure IP addresses based on the above topology (omitted).
  2. Use OSPF to assure connectivity between switches.
  3. Enable multicast on both switches.
  4. Enable PIM DM on all interfaces.
  5. Address of multicast group G: 225.1.1.1.
  6. Address of multicast group S: 10.10.10.100.

OSPF configuration:

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