Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 772

www.dell.com | support.dell.com Configuration Notes When you configure remote port mirroring, the following conditions apply: • You can configure any switch in the network with source ports and destination ports, and allow it to function in an intermediate transport session for a reserved VLAN at the same time for multiple remote-port mirroring sessions. You can enable and disable individual mirroring sessions. • BPDU monitoring is not required to use remote port mirroring. • A remote port mirroring session mirrors monitored traffic by prefixing the reserved VLAN tag to monitored packets so that they are copied to the reserve VLAN. Mirrored traffic is transported across the network using 802.1Q-in-802.1Q tunneling. The source address, destination address and original VLAN ID of the mirrored packet are preserved with the tagged VLAN header. Untagged source packets are tagged with the reserve VLAN ID. • In the reserved L2 VLAN used for remote port mirroring: • MAC address learning in the reserved VLAN is automatically disabled. • The reserved VLAN for remote port mirroring can be automatically configured in intermediate switches by using GVRP. • There is no restriction on the VLAN IDs used for the reserved remote-mirroring VLAN. Valid VLAN IDs are from 1 to 4094. The default VLAN ID is not supported. • In mirrored traffic, packets that have the same destination MAC address as an intermediate or destination switch in the path used by the reserved VLAN to transport the mirrored traffic are dropped by the switch that receives the traffic if the switch has a L3 VLAN configured. • In a source session used for remote port mirroring: • Maximum number of source sessions supported on a switch: 4 Important: FTOS supports a maximum of four source sessions for remote port mirroring and a maximum of two source sessions per datapath. To use a third or fourth source session on a switch, you must configure the session on a different datapath. Datapaths on different line cards are defined as follows: On a 50-port 1G line card, the datapath size is 5 ports; for example, ports 1/0 to 1/4 are the first datapath; 1/5-1/9 are the second datapath, and so on. On a 90-port 1G line card, the datapath size is 10 ports; for example, ports 1/0 to 1/9 are the first datapath; 1/10-1/19 are the second datapath, and so on. On a 10-port 10G line card, no datapath size is implemented; four source sessions are supported on the line card. On a 40-port 10G line card, the datapath size is 4 ports; for example, ports 1/0-1/3 are the first datapath; 1/4-1/7 are the second datapath, and so on. • Maximum number of source ports supported in a source session: 128 You can configure physical ports and port-channels as sources in remote port mirroring and use them in the same source session. You can use both Layer 2 (configured with the switchport command) and Layer 3 ports as source ports. You can optionally configure one or more source VLANs to specify the VLAN traffic to be mirrored on source ports. When you configure a port channel in a source session, all ports in the port channel are used as source ports, up to a maximum of 128 source ports. You can configure trunk ports and access ports as source ports in a remote-port mirroring session. 772 | Port Monitoring