Remotely Connected Cna Topology - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

FCoE Topologies
between the CNA and the FCF. Make sure that you configure the FCoE VLAN on the directly connected
links only.

Remotely Connected CNA Topology

The Cisco Nexus 5000 Series switch can be deployed as a Fibre Channel Forwarder (FCF) for remotely
connected CNAs, but not as a FIP Snooping Bridge, as shown in the following figure.
Figure 40: Remotely Connected Fibre Channel Forwarder
The following rules are used to process FIP frames to avoid the FCF being used as a transit between an ENode
and another FCF. These rules also prevent login sessions between ENodes and FCFs in different fabrics.
• FIP solicitation and login frames received from the CNAs are processed by the FCF and are not forwarded.
• If an FCF receives solicitations and advertisements from other FCFs over an interface, the following
Because the Cisco Nexus 5000 Series FCF cannot perform the transit FCoE function, you must design your
network topology so that the active STP path of FCoE VLANs is always over the directly connected links
between the CNA and the FCF. Make sure that you configure the FCoE VLAN on the directly connected
links only.
OL-16597-01
occurs:
◦ The frames are ignored and discarded if the FC-MAP value in the frame matches the value of the
FCF (the FCF is in the same fabric)
◦ The interface is placed in the "FCoE Isolated" state if the FC-MAP value in the FIP frame does
not match that of the FCF (the FCF is in a different fabric)
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Remotely Connected CNA Topology
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