How would one go about determining how many /24 /23 ... /19 unaggregated advertisements are in the swamp. I assume it would have to be examined by AS, and look for multiple paths to find multi-homed, but it should be doable with the current database, shouldn't it? Has someone already done this? I asked Merit yesterday, and they don't seem to have the tools. Bill.Simpson@um.cc.umich.edu Key fingerprint = 2E 07 23 03 C5 62 70 D3 59 B1 4F 5E 1D C2 C1 A2
Here is the breakdown of 198 in the radb, showing the number of route objects registered in 198 for /14 through /24. prefix length prefix 14 15 16 17 18 19 20 21 22 23 24 ------ ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 198.* 4 5 39 5 19 30 41 67 98 137 5314 -Brian
How would one go about determining how many /24 /23 ... /19 unaggregated advertisements are in the swamp. I assume it would have to be examined by AS, and look for multiple paths to find multi-homed, but it should be doable with the current database, shouldn't it?
Has someone already done this? I asked Merit yesterday, and they don't seem to have the tools.
Bill.Simpson@um.cc.umich.edu Key fingerprint = 2E 07 23 03 C5 62 70 D3 59 B1 4F 5E 1D C2 C1 A2
Here's the same numbers gleaned from a router. The exact numbers may not be the same in other peoples' routers.
Here is the breakdown of 198 in the radb, showing the number of route objects registered in 198 for /14 through /24.
prefix length prefix 14 15 16 17 18 19 20 21 22 23 24 27 30 32 ------ ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 198.* 4 5 39 5 19 30 41 67 98 137 5314 6 6 52 4 16 29 33 61 79 116 3271 2 1 1
Here are the numbers for the two larger address classes and per class C prefix , from the same router, ignoring overlap and stuff like that. Some of these aren't announced to the rest of the world since they're aggregated. It looks better if your screen is 90 characters wide. A B 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 8 24 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0 3 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 11 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 0 8 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 13 0 13 0 2 1 0 0 0 0 2 0 0 0 0 0 1 4 14 0 40 0 4 1 0 0 0 6 2 0 0 0 0 7 3 6 15 0 71 0 21 5 0 0 0 6 7 0 0 1 0 14 12 2 16 1 4868 25 43 45 0 6 0 52 45 7 0 15 6 72 35 21 17 0 0 5 4 8 0 0 0 4 14 2 0 7 10 17 2 11 18 1 14 10 9 9 0 1 0 16 28 2 0 27 14 38 17 19 19 0 5 26 36 30 0 1 0 29 22 6 0 43 16 51 61 144 20 0 1 51 48 32 0 7 0 33 34 9 0 49 13 97 33 16 21 1 1 74 83 39 0 10 0 61 52 5 0 93 9 97 44 33 22 1 0 159 161 51 0 19 0 79 58 8 0 124 30 77 42 27 23 3 2 334 218 97 0 21 0 116 89 22 0 135 23 117 62 48 24 20 25 6425 1890 1220 1 227 1 3271 3291 285 1 877 258 2863 1134 255 25 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 26 0 6 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 27 0 0 2 0 0 0 0 0 2 0 1 0 0 0 30 0 0 28 0 0 0 0 0 0 0 0 0 0 1 0 0 0 11 0 0 30 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 31 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 32 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 There are a boatload of /24's. Dennis Ferguson
participants (3)
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Brian Renaud -
Dennis Ferguson -
William Allen Simpson