Am 31.01.2012 04:06, schrieb Joel Maslak:
There are several ways to handle this is, if you have at least two /24s of space.
Let's say you just have two /24s, both part of the same /23.
[...]
Sad to see that deaggregation is still propagated to handle this issue. As a matter of fact deaggregation pollutes the global BGP table with more than 40% of rubbish, mainly caused by this silly type of traffic engineering. See the weekly routing table report or the CIDR report:
Analysis Summary ----------------
BGP routing table entries examined: 394446 Prefixes after maximum aggregation: 169250 Deaggregation factor: 2.33 Unique aggregates announced to Internet: 191523
There are many smarter ways to manage unbalanced links. See my slides presented on various occations (page 31 to 48) which describes the disadvantages and collateral damage of deaggregation: http://www.swinog.ch/meetings/swinog23/p/03_BGP-traffic-engineering-consider... HTH, -- Fredy Künzler Init7 / AS13030