Re: any dangers of filtering every /24 on full internet table to preserve FIB space ?
12 Oct
2022
12 Oct
'22
10:05 p.m.
Here is a reason you might want to keep that /24. Suppose you are a small ISP and I am your customer. I also have another larger provider. That larger provider is also your provider. I own a /21 and advertise it to my larger provider. You get that /21 from my larger provider. I advertise a /24 subset of the /21 to you. If you ignore my /24, then traffic for it goes to the larger provider and I pay him for the traffic, not you. Regards, Jakob.
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Jakob Heitz (jheitz)