MPLS performance over IP network

[Neelesh M]

Hi ALL,

We know that MPLS forwards packet faster compared to traditional IP network, But how can I prove that by practically (by using some stimulations). Can anyone please suggest or provide proof.

Thank You,

[Joseph W. Doherty]

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Posting

MPLS is faster than traditional routing because it's effectively fixed sized switching rather than variable size, best match, prefix matching.

However, today's hardware often has hardware that practically routes as quickly as fixed sized switching.  I.e. again, today, MPLS often has little raw performance advantage.

Today, MPLS is really more useful for its other capabilities.

[Neelesh M]

Hi Joseph,

Thanks for the reply,

As per your suggestions today some high-end device switch packets fast as MPLS does, Assume that if i have some old device. And how to prove that MPLS is best (fast) than traditional IP routing in practical.

Thanks you,

[Joseph W. Doherty]

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of   the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

How to prove?  Well, if you had an old router that did software forwarding, and which also supported MPLS, push traffic through it and see how traditional routing compares to MPLS forwarding.

Again, with today's high end "routers" (and/or L3 switches) is would be difficult to prove MPLS is faster than traditional routing

[Neelesh M]

Thanks Joseph I will test on lab and will post if i get positive result.

Thank you,