Configuring Virtual Port Channels

vPC Interactions with Other Features

 

Command or Action

Purpose

Step 8

switch(config-track)# end

Exits track configuration mode.

Step 9

switch(config)# vpc domain domain-id

Enters vPC domain configuration.

Step 10

switch(config-vpc-domain)# track number

Adds the track object to the vPC domain.

Step 11

switch(config)# show vpc brief

(Optional)

 

 

Displays the track object.

Step 12

switch(config)# copy running-config

(Optional)

 

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 track list to trigger when all the objects fail using Boolean OR:

switch# configure terminal switch(config)# interface ethernet 8/35

switch(config-if)#track 35 interface ethernet 8/35 line-protocol switch(config-track)#track 23 interface ethernet 8/33 line-protocol switch(config)# track 55 interface port-channel 100 line-protocol switch(config)# track 44 list boolean OR

switch(config-track)# object 23 switch(config-track)# object 35 switch(config-track)# object 55 switch(config-track)# end switch(config)# vpc domain 1 switch(config-vpc-domain)# track 44 switch(config)# copy running-configstartup-config

vPC and LACP

The Link Aggregation Control Protocol (LACP) uses the system MAC address of the vPC domain to form the LACP Aggregation Group (LAG) ID for the vPC.

You can use LACP on all the vPC EtherChannels, including those channels from the downstream switch. We recommend that you configure LACP with active mode on the interfaces on each EtherChannel on the vPC peer switches. This configuration allows you to more easily detect compatibility between switches, unidirectional links, and multihop connections, and provides dynamic reaction to run-time changes and link failures.

The vPC peer link supports 16 EtherChannel interfaces.

Note When manually configuring the system priority, you must ensure that you assign the same priority value on both vPC peer switches. If the vPC peer switches have different system priority values, vPC will not come up.

vPC Peer Links and STP

When you first bring up the vPC functionality, STP reconverges. STP treats the vPC peer link as a special link and always includes the vPC peer link in the STP active topology.

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Cisco Systems N5KC5596TFA VPC and Lacp, VPC Peer Links and STP, Switchconfig-track# end Exits track configuration mode
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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.
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