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| author | Donald Sharp <sharpd@nvidia.com> | 2025-02-20 14:28:15 -0500 |
|---|---|---|
| committer | Mergify <37929162+mergify[bot]@users.noreply.github.com> | 2025-02-21 23:12:23 +0000 |
| commit | 41c3eb672e7baae98bb6f6e5e56704b08572e63d (patch) | |
| tree | a47d9bf13dc9eda4a5f6693cd6b0f14f30b27ba0 /pimd/pim_instance.c | |
| parent | f526b3d8f0aed1c2eff036b60c953103b5fe9f3c (diff) | |
bgpd: remove dmed check not required in bestpath selection
As part of the upstream master commit (f3575f61c7 bgpd: Sort the
bgp_path_inf) the snippet of the code for dmed check condition
left out, which leads to an issue of selecting incorrect bestpath.
As an example:
During the bestpath selection local route looses to another path due
to dmed condition being hit.
The snippet of the logs:
2025/02/20 03:06:20.131441 BGP: [JW7VP-K1YVV]
[2]:[0]:[48]:[00:92:00:00:00:10](VRF default): Comparing path
27.0.0.7 flags Valid with path Static announcement flags Selected Valid Attr Changed Unsorted
2025/02/20 03:06:20.131445 BGP: [SYTDR-QV6X9] [2]:[0]:[48]:[00:92:00:00:00:10]: path 27.0.0.7 loses to path Static announcement as ES 03:44:38:39:ff:ff:02:00:00:01 is same and local
2025/02/20 03:06:20.131452 BGP: [JW7VP-K1YVV] [2]:[0]:[48]:[00:92:00:00:00:10](VRF default): Comparing path 27.0.0.8 flags Valid with path Static announcement flags Selected Valid Attr Changed Unsorted
2025/02/20 03:06:20.131456 BGP: [SYTDR-QV6X9] [2]:[0]:[48]:[00:92:00:00:00:10]: path 27.0.0.8 loses to path Static announcement as ES 03:44:38:39:ff:ff:02:00:00:01 is same and local
2025/02/20 03:06:20.131458 BGP: [WEWEC-8SE72] [2]:[0]:[48]:[00:92:00:00:00:10](VRF default): path Static announcement is the bestpath from AS 0 <<<< static is best
2025/02/20 03:06:20.131463 BGP: [Z3A78-GM3G5] bgp_best_selection: [2]:[0]:[48]:[00:92:00:00:00:10](VRF default) pi 27.0.0.7 dmed
2025/02/20 03:06:20.131467 BGP: [Z3A78-GM3G5] bgp_best_selection: [2]:[0]:[48]:[00:92:00:00:00:10](VRF default) pi 27.0.0.8 dmed
2025/02/20 03:06:20.131471 BGP: [N6CTF-2RSKS] [2]:[0]:[48]:[00:92:00:00:00:10](VRF default): After path selection, newbest is path 27.0.0.7 oldbest was Static announce
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
(cherry picked from commit 83ad94694bc061e1ff5f43db42cba46320e0df73)
Diffstat (limited to 'pimd/pim_instance.c')
0 files changed, 0 insertions, 0 deletions