Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual page 348

Cli software configuration guide

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CFS Distribution over IP

The switch attempts to distribute information over Fibre Channel first and then over the IP network if the

first attempt over Fibre Channel fails. CFS does not send duplicate messages if distribution over both IP

and Fibre Channel is enabled.

• Distribution over IP version 4 (IPv4) or IP version 6 (IPv6).

• Keepalive mechanism to detect network topology changes using a configurable multicast address.

• Compatibility with Cisco MDS 9000 Family switches running release 2.x or later.

The following figure (Network Example 1) shows a network with both Fibre Channel and IP connections.

Node A forwards an event to node B over Fibre Channel. Node B forwards the event node C and node D

using unicast IP. Node C forwards the event to node E using Fibre Channel.

Figure 36: Network Example 1 with Fibre Channel and IP Connections

The following figure (Network Example 2) is the same as the previous figure except that node C and node D

are connected using Fibre Channel. All processes is the same in this example because node B has node C and

node D the distribution list for IP. Node C does not forward to node D because node D is already in the

distribution list from node B.

Figure 37: Network Example 2 with Fibre Channel and IP Connections

Cisco Nexus 5000 Series Switch CLI Software Configuration Guide

CFS cannot distribute over both IPv4 and IPv6 from the same switch.

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