Configuring VLAN-Based Filtering for RSPAN
Complete the following steps to configure VLAN-based mirror filtering for RSPAN.
- Enter global configuration mode.
- Configure the required normal VLANs.
- Configure the RSPAN VLAN.
- Configure the VLAN for which mirrored traffic is to be filtered out.
- (Optional) Check the mirroring configuration.
The following example creates VLANs 3000 and 100, both with tagged ports 1/1/1 and 2/1/1. It configures the RSPAN VLAN 191 to monitor inbound traffic on ports 1/1/1 and 2/1/1 and to send mirrored traffic on port 1/2/1. It configures mirrored traffic received from VLAN 100 to be filtered out so that it is not sent to the analyzer port.
device# configure terminal device(config)# vlan 3000 by port device(config-vlan-3000)# tagged ethernet 2/1/1 ethernet 1/1/1 device(config-vlan-3000)# exit device(config)# vlan 100 device(config-vlan-100)# tagged ethernet 2/1/1 ethernet 1/1/1 device(config-vlan-100)# exit device(config)# rspan-vlan 191 device(config-rspan-vlan-191)# tagged ethernet 1/2/1 device(config-rspan-vlan-191)# rspan destination ethernet 1/2/1 device(config-rspan-vlan-191)# rspan source monitor-in ethernet 1/1/1 ethernet 2/1/1 device(config-rspan-vlan-191)# exit device(config)# mirror-filter source vlan 100 device(config)# exit device# show running-config | include mirror mirror-filter source vlan 100