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Comments on LSP Ping 05

  • From: Kireeti Kompella <kireeti@juniper.net>
  • Date: Tue, 01 Jun 2004 19:08:59 -0700 (PDT)
  • Cc: "'mpls@UU.NET'" <mpls@UU.NET>

Hi Dave,

On Wed, 18 Feb 2004, David Allan wrote:

> LSP-PING can also be used for RTT measurements, which when performing the
> FEC stack check when processing a request message I would consider to be
> somewhat imprecise....
>
> Perhaps the FEC stack and associated processing should be optional if useful
> RTT measurements are to be performed?

RTT measurements are usually accurate to milliseconds or tenths of
msec.  Do you think that FEC processing will really affect that?

Besides, doing RTT on the wrong ping packet because the FECs were not
processed seems worse than jittering the result by a few tens of
microseconds.

Kireeti.
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