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Router on a stick VS Layer 3 routing

So i have been thinking, which is preferable supposing all required hardware are available for both. Configuring router on a stick or configuring inter vlan routing on a layer 3 switch.

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Re: Router on a stick VS Layer 3 routing

L3 switch is generally a better approach for all but the smallest business. 

 

The reason is with router on a stick all vlans share the bandwidth of the physical interface whereas with a L3 switch you get the full switching capacity. 

 

Obviously L3 switches do not have the full feature support of routers. 

 

Jon

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Hall of Fame Guru

Re: Router on a stick VS Layer 3 routing

L3 switch is generally a better approach for all but the smallest business. 

 

The reason is with router on a stick all vlans share the bandwidth of the physical interface whereas with a L3 switch you get the full switching capacity. 

 

Obviously L3 switches do not have the full feature support of routers. 

 

Jon

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Beginner

Re: Router on a stick VS Layer 3 routing

Thanks for the quick reply Jon.
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Re: Router on a stick VS Layer 3 routing

Just to add to what Jon has noted, there's often a huge performance difference between a L3 switch and a software based router, especially for the price. For example, a high-performance 4451 can router up to 2 Gbps, while multi gig port L3 switches can do wire speed for all their gig ports.
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