Date: Thu, 20 Dec 2001 14:13:26 +0200
From: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
| However, if the change from zero value to non-zero value is banned, then the
| end-to-end value would always be immutable,
Really? When I read the draft I saw three modifications permitted.
The (pretty silly) modify and unmodify case, which is immutable, so that's OK.
The "start at zero" case - which apparently now might be deleted (I wasn't
in SLC to hear the discussion, but I have no opinion on this either way).
And the "by prior arrangement" case.
Even if the zero case is deleted, isn't there still the other one?
I am just trying to understand what this draft may become in its next
revision.
| - what if your default router goes down, and you start using another? How
| would you make sure that the flow label would be marked the same way by the
| new router?
In that type of scenario, one typically has only one router. Or if one
has 2, they're both configured the same way. Which isn't to say that
doing this is a good idea - but it also isn't impossible.
| - Or assume that the host distributes different flows to different default
| routers. How will you guarantee that the routers will not pick the same flow
| label values (which would be a problem if the flows go to the same
| destination)?
|
| - Or what if the host is "dumb" only with some flows, but will assign flow
| label values for some other flows. How will you synchronize the flow label
| setup in the host and the router?
Any of these can be handled by administrative control if necessary (the
first few bits in the flow label identify the source - 0 -> original host,
1, 2, .. N identify a router).
Smart routers are possible, not necessarily smart though.
kre
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