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author | Toshiki Tsuboi <t.tsubo2000@gmail.com> | 2014-11-16 10:39:42 +0900 |
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committer | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2014-11-18 07:27:52 +0900 |
commit | ecc57e8660682b954b7683170521b1d1628255a3 (patch) | |
tree | 5fd6449b41c55784aa3ffdb153150498d83635f7 /LICENSE | |
parent | 8daa12a625b8514f7a11369d41f5d7aef2943b9e (diff) |
bgp: bug fix of Multi Exit Discriminator (MED)
RyuBGP doesn't work well regarding the advertisement of BGP MED Attribute as follows.
(1) In spite of receiving BGP MED:"500" from iBGP(R2), RyuBGP can't advertise BGP MED:"100" to eBGP(R3).
R1 -------------> R2 -------------> RyuBGP -------------> R3
eBGP(MED:500) iBGP(MED:500) ^ eBGP(MED:500)
(MED:100)
(2) When RyuBGP has received BGP MED:"200" from eBGP(R3), RyuBGP has sended BGP with missing-MED to iBGP(R2).
As result, PolicyBaseRouting in R2(other RyuBGP) doesn't work properly becase of selecting wrong BestPath.
eBGP(MED:100)
R1 ------------------------------------>+
|
R3 -------------> RyuBGP -------------> R2(RyuBGP) => Wrong result [BestPath is "R3-R2"]
eBGP(MED:200) iBGP(MED:N/A)
Signed-off-by: Toshiki Tsuboi <t.tsubo2000@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Diffstat (limited to 'LICENSE')
0 files changed, 0 insertions, 0 deletions