Static ARP for Microsoft NLB Multicast on HPE Aruba ArubaOS-Switch

Mon, 01 Jan 2024 00:00:00 +0000

Microsoft NLB in multicast mode causes switches to flood traffic to all ports because the multicast MAC address is never seen as a source — the switch cannot learn which port the cluster is on and treats it as an unknown destination.

HPE Aruba ArubaOS-Switch does not have a direct static MAC/ARP entry feature like Cisco, but ip arp-mcast-replies combined with IGMP resolves the flooding.

HPE Aruba solution #

cli

ip arp-mcast-replies

Enable IGMP on the NLB client VLAN, and ensure NLB is set to multicast cluster operation mode:

Monitoring Hyper-V Hosts in HPE IMC with VRM (without SCVMM)

Wed, 01 Jun 2016 00:00:00 +0000

How to add a Hyper-V host to IMC and monitor it with VRM (Virtual Resource Manager), without System Center Virtual Machine Manager (VMM). Written against IMC 7.1.

Make sure the VRM component is deployed, using the Intelligent Deployment Monitoring Agent (IDM).
Install the LLDP agent on the Hyper-V server.
Install the VRM agent on the Hyper-V server.
Point the VRM agent at the IMC server address on port 8800. The agent’s settings label this field “IMG”.
Configure WMI credentials for the host in IMC.

You don’t need to add PowerShell parameters unless you’re using VMM.

Microsoft on vlan51

Static ARP for Microsoft NLB Multicast on HPE Aruba ArubaOS-Switch

HPE Aruba solution #

Monitoring Hyper-V Hosts in HPE IMC with VRM (without SCVMM)