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Re: Last Call: <draft-ietf-mpls-in-udp-04.txt> (Encapsulating MPLS in UDP) to Proposed Standard

2014-01-21 19:14:06
+1

I don't even care if the safety breaker is a little late, e.g., a few
hundreds of packets (as might be needed for efficient implementation).

Joe

On 1/13/2014 1:42 AM, Eggert, Lars wrote:
Hi,

On 2014-1-13, at 10:16, Xuxiaohu <xuxiaohu(_at_)huawei(_dot_)com> wrote:
No conflict at all. What I meant is: for those clients of MPLS which are not 
TCP-friendly (case 2&3 as described in Section 3.1.3 of RFC5405), they 
should never be transported over the unprovisioned path (e.g., the 
Internet). Insteads, they should only be transported over a provisioned path 
in a restricted networking environment. As a result, there is no need for 
the congestion control mechanism for them.

I agree, but I think we need a safety mechanism when such traffic does end up 
on the general Internet (because operators may not read the RFC, or there may 
be configuration errors, etc.)

Even when running inside a provisioned domain, you probably want some sort of 
safety net, like a circuit breaker that detects if your tunnel is 
experiencing/causing severe congestion, and shut it down.

Lars


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