North American Network Operators Group

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Re: PI space and colocation

  • From: Patrick W. Gilmore
  • Date: Wed Jan 18 17:24:13 2006

On Jan 18, 2006, at 4:02 PM, Chris Adams wrote:

Once upon a time, Patrick W. Gilmore <[email protected]> said:
It adds zero useful data to the global table, but increases RAM, CPU,
etc. on every router looking at the global table.
How much difference is there between one AS (the colo provider)
announcing a prefix and another AS (the customer) announcing it through
the first AS (the colo provider)? If the space is ARIN assigned PI, it
isn't going to aggregate with the colo provider's space, so the prefix
will still be a separate announcement. The only difference is the AS
path is one entry longer.
Well, obviously, the path entry is longer. :)

It's not huge, but it is there. And like I said, many people argue over additions to the table which are actually useful.