#Nexus f3 line card mac address learning software
#Nexus f3 line card mac address learning series
#Nexus f3 line card mac address learning mac

At that point Ethernet frames are forwarded across the campus switching infrastructure with traditional data plane CAM and ARP table lookups. The IP header is stripped off by the remote OTV edge device and forwarded to the core switch. The IP header contains the next hop IP address of the remote OTV edge device.

#Nexus f3 line card mac address learning mac

The OTV edge device uses MAC routing transport to encapsulate or add an IP header to the Ethernet layer 2 frame. The remote MAC addresses have a next hop IP address of the remote OTV edge device. Remote host MAC reachability is done with a control plane protocol to advertise local MAC addresses to remote OTV edge devices. The layer 3 OTV edge devices at each data center maintain a table with local and remote mac addresses. It creates a single logical layer 2 network with VLANs extended across multiple data centers. Overlay Transport Virtualization (OTV), available with all F3-Series line cards, extends the data center layer 2 topology and connectivity to multiple data centers. That provides layer 2 adjacency without having to move servers. An advantage of FabricPath is that VLANs can be extended across the data center. The destination switch then strips off the FabricPath header and forwards the Ethernet packet after doing CAM and ARP table lookups. The Nexus switch attaches a unique FabricPath MAC address header used for forwarding packets to the neighbor switch. Each FabricPath enabled switch is assigned a MAC address for forwarding Ethernet packets across the FabricPath for all connected switches.

#Nexus f3 line card mac address learning software

Those enhancements available with NX-OS software allows for significant scalability at the data center and cloud service providers. The bandwidth is optimized with multiple ECMP path load balancing while availability is improved with faster convergence using IS-IS SFP routing protocol. Some of the Nexus platforms have additional slots for fabric modules that increase the line card data throughput.įabricPath is a Nexus layer 2 feature available with all F-Series line cards that is designed to replace spanning tree protocol and optimize local and remote data center interconnect. It is similar to the Cisco 6500 switch dCEF architecture. That means each line card does all the layer 2 and layer 3 forwarding of packets without using the supervisor engine. The Nexus switches use a distributed architecture for all layer 2 and layer 3 forwarding. In addition the line cards specify chassis type and platform support. All Nexus line cards are wire rate non-blocking (no oversubscription) except those noted.

The F1 32-port GE and 10 GE line card module is a layer 2 module and used for access switch connectivity. Most of the line cards support layer 2 and layer 3 forwarding.

In addition the Supervisor Engine 1, 2 and 2E are specific to Nexus switches. The Nexus switches are high performance distribution and core switches that have features unique to the Nexus platform such as FabricPath, OTV and multiple fabric modules for increasing capacity.

#Nexus f3 line card mac address learning series

The 7700 series switches are comprised of the 7706 (6 slot), 7710 (10 slot) and 7718 (18 slot) switches.

The Cisco Nexus core switch platform includes the 7000 series switches and the newer 7700 series switches.