Enable And Disable Vlan Flooding - Dell Force10 S4810P Configuration Manual

High-density, 1ru 48-port 10gbe switch

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29-5, the server MAC address is given in the Ethernet frame header of the ARP reply,

while the virtual MAC address representing the cluster is given in the payload. The

directs the system to discover that there are different MAC addresses in an ARP reply and associate the

virtual MAC address with the VLAN connected to the cluster. Then, all traffic destined for the cluster is

flooded out of all member ports. Since all of the servers in the cluster receive traf fic, failover and balancing

are preserved.

Figure 29-5. Server Cluster: Failover and Balancing Preserved with the vlan-flooding Command

Microsoft Server Cluster: IP Cluster

Enable and Disable VLAN Flooding

ARP entries already resolved through the VLAN are deleted when the feature is enabled. This ensures

that ARP entries across the VLAN are consistent.

All ARP entries learned after the feature is enabled are deleted when the feature is disabled, and RP2

triggers ARP resolution. The feature is disabled with the command

When a port is added to the VLAN, the port automatically receives traffic if the feature is enabled. Old

ARP entries are not deleted or updated.

When a member port is deleted, its ARP entries are also deleted from the CAM.

Port channels in the VLAN also receive traffic.

There is no impact on the configuration from saving the configuration.

The feature is not reflected in the output of the

show ipf fib

The ARP entries exist in the secondary RPM CAM, so failover has no effect on the feature.

vlan-flooding configured

Source MAC: MAC S1

Source IP: IP S1

Destination MAC: MAC Client

Source MAC: MAC Cluster

Type: 0x0806

Ethernet Frame Header

no vlan-flooding

command but is reflected in the output of the

vlan-flooding

Layer 2 | 631