Marian Marinov/HackMan

Yesterday I had a very interesting conversation about congestion control and how it affects long lived connections.
So I decided to do a very simple comparison. I created a 100MB file(dd if=/dev/zero of=test-file bs=1M count=100).

Scalable:

test-file 100%[==============================================>] 100.00M 5.13MB/s in 23s
2016-02-28 19:40:55 (4.35 MB/s) - ‘test-file’ saved [104857600/104857600]

Illinois:

test-file 100%[==============================================>] 100.00M 4.20MB/s in 24s
2016-02-28 19:21:57 (4.13 [...]

Bird’s memory usage with 8 BGP sessions (6 of which full BGP tables):

root@sfgw:~# birdc show memory
BIRD 1.5.0 ready.
BIRD memory usage
Routing tables: 160 MB
Route attributes: 136 MB
ROA tables: 112 B
Protocols: 68 kB
Total: [...]

I finally decided to request full BGP tables from all of my ISPs, so I can easily change the preferred path to certain destinations.
However this meant that now I have to monitor both the state of the BGP sessions, but also the amount of routes that I receive from my neighbors.
Before my days with full [...]