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pmtu and interface mtu,mpls mtu

Hi,

If pmtu work , do i need config interface mtu and mpls mtu on interface facing core,or p-p along the path.

thank you!

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Re: pmtu and interface mtu,mpls mtu

Not necessarily. However, Path MTU is not guaranteed to work all the time because of things like firewalls and access-list. From a performance perspective, you will want the maximum possible MTU, which is what makes it adviseable to change the MTU (IP/MPLS).

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