Cisco Cisco Prime Network Services Controller Adaptor for DFA White Paper

 

 

© 2014 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. 

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The Enhanced Virtual PortChannel (VPC+) Domain Configuration section incorporates all required steps to build a 

VPC+ domain including the identifiers for the vPC domain, Cisco FabricPath switch identifier, the Peer-Link 

PortChannel with its physical interfaces as well as the vPC peer-keepalive configuration. 

Note:   The Enhanced Virtual PortChannel (VPC+) section is not specific to DFA. Some assumption have been 
made within the POAP Templates to configure the VPC+ Domain. 

Note:   During the process of entering the serial numbers for the POAP definition, you are able to group the serial 
numbers in pairs of two with surrounding brackets. By using this notation, you can enter multiple comma separated 
IP addresses in the “VPC Peer IP” field, to assign the vPC peer-keepalive neighbor IP for a multiple of two 

switches. It is required to respect the order of the entered serial number to assign the correct vPC peer-keepalive 

neighbor IP address. 

Additional configuration of the predefined Cisco DFA POAP templates is performed in the Interface, PortChannel, 

and Fabric Extender Configuration section (Figure 18). To reduce the number of POAP definitions that you need to 

create, you should use the same set of ports for fabric connectivity on the given spine and leaves. This approach 

helps ensure that a given POAP definition can be reused over multiple switches with the same purpose in the 

same or even multiple Cisco DFA fabrics. 

Figure 18.    Fabric Interface 

 

In the same section, you can configure PortChannels and various interfaces: 

● 

Host interface: An interface on the switch-port mode trunk with no VLAN range restriction 

● 

Access port: A pseudo-trunk through which the switch-port mode trunk is used but with a given VLAN ID for 

the native VLAN (untagged) 

● 

PortChannel host: A PortChannel (mode on) with multiple interfaces from a single leaf to a single host 

(server) 

● 

Breakout cable: A cable that uses a single 40-Gbps interface and changes its mode to 4 x 10 Gbps 

You can also create fabric extender (Cisco Nexus 2000 Series Fabric Extender) connectivity within the predefined 

Cisco DFA POAP templates for single- and dual-connected fabric extenders. 

Note:   Active-active fabric extender connectivity requires that the vPC+ domain be created first.