14 Nov
2003
14 Nov
'03
2:52 p.m.
On 14 Nov 2003, at 14:41, McBurnett, Jim wrote:
just how bad is the auto-summarization at the upstream for the route propagation via BGP in the large routers anyway?
What auto-summarisation? If you're talking about the cisco "auto-summary" command, then the answer is "so bad that it's universally disabled" (but then "auto-summary" is concerned with aggregation on pre-CIDR, classful boundaries which I don't think is what you were talking about). Absent a precise understanding of all the routing policies concerned, proxy aggregation is dangerous and is hence generally not done. Joe