YES, FCoE between Data Centers is possible. VE Ports allow you to build multi-hop FCoE fabrics by interconnecting multiple FCF, VE PORT functions as a Fibre Channel E-port running on top of a lossless Ethernet FABRIC. The maximum distance between two Cisco Nexus 5000 Series switches is 3000m for FCoE (lossless Ethernet) traffic with NX-OS 5.0(2)N1.1. It can be enabled using the pause no-drop buffer-size buffer-size pause-thresholdxoff-size resume-threshold xon-size command in QOS configuration.

Here are the maximum distances:

• Nexus 55xx to Nexus 55xx - 3km
• Nexus 50x0 to Nexus 50x0 - 3km
• Nexus 50x0 to Nexus 55xx - 3km
• Nexus 55xx to Nexus 2232 - 300M
• Nexus 50x0 to Nexus 2232 - 300m

Yes, FCoE between Data Centers is possible. VE Ports allow you to build multi-hop FCoE fabrics by interconnecting multiple FCF, VE port functions as a Fibre Channel E-port running on top of a lossless Ethernet fabric. The maximum distance between two Cisco Nexus 5000 Series switches is 3000m for FCoE (lossless Ethernet) traffic with NX-OS 5.0(2)N1.1. It can be enabled using the pause no-drop buffer-size buffer-size pause-thresholdxoff-size resume-threshold xon-size command in QOS configuration.

Here are the maximum distances: