Re: [v6ops] Extension Headers / Impact on Security Devices

"Howard, Lee" <lee.howard@twcable.com> Fri, 29 May 2015 18:54 UTC

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From: "Howard, Lee" <lee.howard@twcable.com>
To: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, Joe Touch <touch@isi.edu>
Date: Fri, 29 May 2015 14:54:53 -0400
Thread-Topic: [v6ops] Extension Headers / Impact on Security Devices
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Cc: "Mark Townsley \(townsley\)" <townsley@cisco.com>, "v6ops@ietf.org" <v6ops@ietf.org>
Subject: Re: [v6ops] Extension Headers / Impact on Security Devices
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On 5/28/15, 3:01 PM, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>
wrote:

>>
>>> Of course, this causes MTU issues (pretty much like MPLS but at a
>>> different layer) within one domain which is solvable
>>
>> Which is slightly more problematic because the Frag Header comes *after*
>> the Routing Headers, but - as you note - solvable using context.
>
>
>the networking industry already faced the mtu "issue" more than 15 years
>ago with the introduction of the label stack. The reality of network
>operators infrastructure is such that the mtu is not really an issue.


This statement surprised me so much I thought I should ask:
³MTU is not really an issue² in general?

Lee


>
>s.


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