Exceeding the Limitations of Area and Time with Next Generation StackWise ® Virtual


First, there was Cisco StackWise ® Virtual, offering the capability to virtualize two linked switches into a single virtual switch. Now there’s the next generation of technology, established by Cisco IOS XE engineers, with a selection of brand-new benefits. The most significant benefit is that this virtualization technology can now run over optical fiber, so switches can be physically located approximately countless miles away from each other.

What are Cisco StackWise Virtual and Cisco Next Generation StackWise Virtual? What other benefits does it supply? And why is physically stacking switches and hassling with complicated cabling so passé?

Keep reading.

Increasing Operational Performance

Physical switch stacking services utilize proprietary cables that are laid out in complex configurations and are limited by the length of the cables. Virtualization got rid of the requirement to physically stack turn on top of each other. Now, using fiber, switches can be located far from each other.

Cisco StackWise Virtual is a network system virtualization innovation that pairs 2 directly connected switches into one virtual switch. To users, the switches appear like two separate physical ones. To administrators, they appear like one virtual switch with the same setup and forwarding state.

Switches in a Cisco StackWise Virtual solution increase functional efficiency by using a single control and management airplane. Merging for multicast and failover is much faster. System bandwidth can be scaled with a distributed forwarding plane. And with StackWise Virtual, originated by Cisco, administrators can decrease the variety of software variations they have to manage by half.

How StackWise Virtual Functions

The StackWise service is an enhancement of Cisco Virtual Changing System (VSS), offered on Cisco Catalyst 6500 Series switches. Cisco StackWise Virtual is an inter-chassis system link between 2 switches that actively forwards traffic (Figure 1) in the StackWise Virtual domain. It allows stack material communication over network ports to virtualize the system. The StackWise Virtual connections do not run any network protocol and stay transparent in Layer 2 and Layer 3 network topologies. The active and standby switches support local forwarding that separately performs wanted lookups and forwards traffic on local links to uplink neighbors.

Cisco StackWise Virtual Link domain Figure 1. Cisco StackWise Virtual Link domain The capability to cluster 2 switch chassis together into a single, rational entity supplies advantages such as higher availability and scalability and simpler management and upkeep. Cisco StackWise Virtual Link enables a loop-free Layer 2 network topology of Stackwise virtual member changes for both access and core. The Cisco solution streamlines the Layer 3 network geography by presenting itself as one sensible switch, minimizing the variety of routing peers in the network. The Cisco NSF function also handles the failure circumstances optimally with the StackWise Virtual SSO so that forwarding is continuously, even if control airplane failover takes place.

With services at both Layer 2 and Layer 3, Cisco StackWise Virtual supplies much faster redundancy and failover than other solutions available to enterprises.

Advancement from Data Center Solutions

In the information center, networking vendors have utilized options like multi-chassis link aggregation groups (MC-LAG) to virtualize and aggregate several network connections. MC-LAG permits ports to terminate on separate chassis to provide redundancy in the event of a link failover. Nevertheless, applications of MC-LAG could be related to other exclusive executions and therefore execution can vary from supplier to supplier. And at Layer 3, recomputing occurs, so merging in case of a failure is slowed.

Our rivals are pushing the use of the MC-LAG procedure for switch virtualization and stacking in enterprises. But on enterprise campuses, multicast and merging requirements are much faster and more mission-critical. If a link or switch goes down, it needs to failover effortlessly and quickly to a various node.

By virtualizing at just Layer 2 to integrate the stacked switch brains, Cisco StackWise Virtual offers far exceptional convergence efficiency than services like MC-LAG or Virtual Router Redundancy Protocol (VRRP), which need failure handling and recomputing at Layer 3.

Likewise, with the data aircraft of one node active and the other on standby, VRRP offers lower capacity (fewer data processed) compared to Cisco StackWise Virtual, which preserves an active/active data airplane to offer high capacity. With both information aircrafts always active, Cisco StackWise Virtual doubles capability in the stacking service, allowing more enterprise access-layer gadgets (e.g., access points, laptops, phones, sensors) to be supported.

StackWise Virtual Link’s single control plane also helps in failure handling since to the network the stacked switches present as a single entity. If one node fails, another node takes over. The remainder of the network is undisturbed.

The Next Generation of StackWise

Recommended for aggregation layers, collapsed aggregation, and core layers for finest outcomes, Cisco StackWise Virtual Link can be used over 40G or 100G links to guarantee that the distribution of the aggregation switches can be deployed over a far away. The next generation of the feature in Cisco IOS XE software can work on generic optical fiber, so changes can be found in nearby structures or on opposite ends of a continent. This gives services that are ending up being overwhelmed with several physical switches in office buildings plugging into the same port much higher versatility in switch implementation.

Now switches serving an office building with numerous users accessing Wi-Fi, for instance, can be put outside of the structure, freeing up area and adding versatility as requirements and workplace setups alter. The new variation of StackWise Virtual also uses standards-based node discovery technology, making it possible for the automated discovery of all nodes on the network. The future release of the Next-Generation StackWise Virtual could get rid of the constraint of a straight linked network and might link its member nodes over Layer 2 and Layer 3.

The Next Generation StackWise Virtual best-in-class sensible switch service functions:

  • The high accessibility and flexibility needed in school networks
  • A unified management and control aircraft
  • Faster merging and higher throughput through an active-active information plane
  • Greater release versatility with the intro of a fiber port
  • Standard-based discovery
  • Future support of StackWise Virtual links in the cloud

So, with Cisco Next Generation StackWise Virtual option, virtual stacking is set to end up being a best practice within enterprises. It streamlines network operations with a single control and management aircraft. It provides much faster merging for multicast and failover. It adds to a more durable network where system bandwidth can be scaled throughout a distributed forwarding aircraft. And now, system admins are without the restrictions of space and cable televisions to release switches anywhere on optical fiber.

Enjoy more current Cisco IOS XE Blogs:

High Availability– Features in Cisco IOS XE Software Application Makes It Appear Smooth
Cisco Champions the Powerful, Evolving Networking Software Stack
Allowing Scalable Group Policy with TrustSec Across Networks to Supply More Dependability and Determinism



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