Configuring Virtual Port Channels

Compatibility Parameters for vPC Peer Links

Note You must ensure that all interfaces in the vPC have the identical operational and configuration parameters listed in this section.

Enter the show vpc consistency-parameterscommand to display the configured values on all interfaces in the vPC. The displayed configurations are only those configurations that would limit the vPC peer link and vPC from coming up.

The switch automatically check for compatibility of these parameters on the vPC interfaces. The per-interface parameters must be consistent per interface, and the global parameters must be consistent globally.

Port-channel mode: on, off, or active

Link speed per channel

Duplex mode per channel

Trunk mode per channel:

Native VLAN

VLANs allowed on trunk

Tagging of native VLAN traffic

Spanning Tree Protocol (STP) mode

STP region configuration for Multiple Spanning Tree (MST)

Enable or disable state per VLAN

STP global settings:

Bridge Assurance setting

Port type setting—We recommend that you set all vPC interfaces as normal ports

Loop Guard settings

STP interface settings:

Port type setting

Loop Guard

Root Guard

For the Fabric Extender vPC topology, all the interface level parameters mentioned above should be identically configured for host interface from both the switches.

Fabric Extender FEX number configured on an EtherChannel fabric interface; for the Fabric Extender vPC toplogy.

If any of these parameters are not enabled or defined on either switch, the vPC consistency check ignores those parameters.

 

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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.