PC5324 IGMP Snooping & Windows NLB Cluster

​ Hi, ​

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​ I'm installing Windows NLB Cluster, using Windows Server 2003 Standard Edition, in multicast mode with IGMP multicast support (PAY ATTENTION TO THIS). All cluster servers are connected to 2 PC5324 switches. Now everything has been done and it seems that the NLB cluster works well. The configuration details is attached below: ​

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​ ***Network topology*** ​

​ 1. 2 PC5324 Switches are connected with 2 cat5e cables, I configured the two connections in a LAG group. This LAG is configured working in Trunk mode. ​

​ 2. One server, which is a member of the NLB cluster, is connected to #2 port on one 5324 switch, another server, which is also a member of the NLB cluster, is connected to #2 port on another 5324 switch. ​

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​ ***Configurations (on both switches)*** ​

​ 1. Enable Bridge Multicast Filtering (Global). ​

​ 2. Enable IGMP Snooping (Global). ​

​ 3. Enable IGMP Snooping (VLAN 1) because all the NLB Cluster nodes are connect to the VLAN 1. ​

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​ Here are my questions: ​​ ​​ ​​ ​​ ​

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​ Vlan IP Address Querier Ports ​
​------ ------------------------ ------- ------ ​
​1 224-239.255|127.1.3 No g2 ​

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​ However, when I executed "show bridge address-table" commands, I couldn't see the multicast MAC address of the cluster in the list, why? Is it supposed to be right? ​

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​ 3. What's the relationship between Bridge Multicast Filter and IGMP Snooping? What if I only enable IGMP Snooping and disable Bridge Multicast Filter? ​

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​ 4. I have no multicast router in the topology, I heard PC5324 doesn't support IGMP querier, does that mean I need to add a querier into the topology to allow IGMP Snooping function? I don't know if the Windows 2003 NLB cluster node can be a querier or not. ​

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​ If you need to know more information, let me know and I will provide. ​

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​ Thanks very much in advance, ​

​ James ​

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