On May 27, 2008, at 2:55 AM, Pekka Savola wrote:
On Tue, 27 May 2008, Lixia Zhang wrote:
As I've heard from a few big operators, their shared issue is the
scale limitation of their edge boxes --- they could buy a small
number of core routers that can handle large tables, but they could
not afford replacing hundreds or even up to thousands edge routers
that have limited capacity.
I have to wonder which edge boxes we're thinking of. Edges towards
other ISPs (peering etc.)? Edges towards customers? The latter in
some cases might be easier -- it may not be required to carry the
full routing table on each and every customer-facing router.
I might have used a wrong word "edge"; someone closer to operations
might help here. But the stories I heard are about the ISP routers
that do carry the full table.
Lixia
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