Configuring Virtual Port Channels

Verifying the vPC Configuration

 

Command or Action

Purpose

 

Step 3

switch(config-pseudo)# vlan vlan-id

Configures the designated bridge priority of the VLAN.

 

designated priority priority

Valid values are multiples of 4096 from 0 to 61440.

Step 4

switch(config-pseudo)# vlan vlan-id

Configures the root bridge priority of the VLAN. Valid

 

root priority priority

values are multiples of 4096 from 0 to 61440.

 

 

Note

This value must be identical on both vPC peers

 

 

 

to have an operational peer switch.

Step 5

switch(config-pseudo)# exit

Exists spanning tree pseudo information configuration

 

 

mode.

 

Step 6

switch(config)# vpc domain

Enters the vPC domain number that you want to configure.

 

domain-id

The system enters the vpc-domain configuration mode.

Step 7

switch(config-vpc-domain)#

Enables the vPC switch pair to appear as a single STP root

 

peer-switch

in the Layer 2 topology.

 

 

Use the no form of the command to disable the peer switch

 

 

vPC topology.

Step 8

switch(config-vpc-domain)# exit

Exits the vpc-domain configuration mode.

Step 9

switch(config)# show

(Optional)

 

spanning-tree summary

Displays a summary of the spanning tree port states

 

 

including the vPC peer switch.

 

 

Look for the following line in the command output:

 

 

vPC peer-switch is enabled (operational)

Step 10

switch(config)# copy

(Optional)

 

running-config startup-config

Saves the change persistently through reboots and restarts

 

 

by copying the running configuration to the startup

 

 

configuration.

This example shows how to configure a hybrid vPC peer switch topology:

switch# configure terminal

Enter configuration commands, one per line. End with CNTL/Z. switch(config)# spanning-treepseudo-informationswitch(config-pseudo)# vlan 1 designated priority 8192 switch(config-pseudo)# vlan 1 root priority 4096 switch(config-pseudo)# exit

switch(config)# vpc domain 5 switch(config-vpc-domain)# peer-switchswitch(config-vpc-domain)# exit switch(config)# copy running-configstartup-config

Verifying the vPC Configuration

Use the following commands to display vPC configuration information:

Cisco Nexus 5000 Series NX-OS Interfaces Configuration Guide, Release 5.2(1)N1(1)

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Cisco Systems N5KC5596TFA manual Verifying the vPC Configuration, Designated priority priority, Root priority priority

N5KC5596TFA specifications

The Cisco Systems N5KC5596TFA is a high-performance data center switch designed specifically for modern architectures requiring low-latency, high-bandwidth connectivity. As part of the Nexus 5000 series, the N5KC5596TFA addresses the needs of virtualized environments, cloud computing, and highly dynamic workloads, making it an essential choice for enterprises and service providers.

One of the standout features of the N5KC5596TFA is its impressive port density. The switch offers 48 10 Gigabit Ethernet (10GbE) ports and 4 40 Gigabit Ethernet (40GbE) uplinks, providing flexibility to connect a variety of devices and ensuring high throughput across the network. This port configuration is ideal for connecting multiple servers and storage devices, making it perfect for environments with significant data traffic.

The switch supports a range of advanced technologies such as Virtual Extensible LAN (VXLAN) for improving scalability and multi-tenancy in data center networks. VXLAN encapsulates Layer 2 Ethernet frames within Layer 4 UDP packets, allowing for a larger address space and effective overlay networking, which is crucial for cloud deployments.

Another notable aspect of the N5KC5596TFA is its support for Data Center Bridging (DCB), which enhances the reliability and performance of Ethernet networks. DCB features like Priority Flow Control (PFC) and Enhanced Transmission Selection (ETS) help to minimize data loss and ensure Quality of Service (QoS) for various types of traffic, including storage and regular data, which is critical in a converged infrastructure.

Security is also a priority with the N5KC5596TFA, as it comes equipped with features such as Access Control Lists (ACLs) and port security, helping to safeguard the network from unauthorized access and potential threats.

In terms of management, the switch offers integration with Cisco's Data Center Network Manager (DCNM), providing tools for monitoring, management, and automation, which simplifies operational tasks. Additionally, it supports Cisco's Application Centric Infrastructure (ACI), enabling a more comprehensive and application-focused approach to networking.

Overall, the Cisco Systems N5KC5596TFA is engineered for organizations looking to build robust, highly efficient, and secure data center environments. Its combination of high density, versatile connectivity options, and advanced networking technologies makes it a powerful solution for meeting the demands of today’s enterprise workloads.