mac address-table notification change interval 0.
This means that the RSPAN VLAN should not be associated with ports that are not trunk ports between the source port and destination port. snmp-server hostTraffic is flooded out of all ports associated with a RSPAN VLAN. Switches use the following logic to find out MAC address table entries: for every received frame, examine the source MAC address and note the interface from which the frame was received. Secondly we will configure the link between the two switches as a trunk: Learn any CCNA, CCNP and CCIE R&S Topic. This is something that is easily forgotten. First we need to create the VLAN and tell the switches that it’s a RSPAN vlan. This ensures that the port associated with the VLAN does not try to use the port associated with the RSPAN VLAN to transmit data to a host. SW2 (config)vlan 100 SW2 (config-vlan)remote-span. The RSPAN VLAN acts differently from a regular VLAN.Īny ports that are associated with the RSPAN VLAN to not learn any MAC addresses. including NetFlow, sFlow, CLI, IPFIX, RSPAN, LACP, 802.
In a larger environment, there may be a need to forward mirrored traffic across multiple switches to reach the traffic analyser.įrom the source port, the mirrored traffic placed on a special VLAN called a RSPAN VLAN. In order to simplify management, the same IP and MAC addresses are reused on all the compute.