zebra: Fix fpm multipath encap addition #14835
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The fpm code path in building a ecmp route for evpn has a bug that caused it to not add the encap attribute to the netlink message. See #f0f7b285b99dbd971400d33feea007232c0bd4a9 for the single path case being fixed. Signed-off-by: Donald Sharp <[email protected]>
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@Mergifyio backport stable/9.1 |
✅ Backports have been created
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@Mergifyio backport stable/8.5 stable/9.0 |
donaldsharp
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Nov 21, 2023
zebra: Fix fpm multipath encap addition (backport #14835)
✅ Backports have been created
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This was referenced Nov 21, 2023
donaldsharp
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Nov 21, 2023
zebra: Fix fpm multipath encap addition (backport #14835)
donaldsharp
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Nov 21, 2023
zebra: Fix fpm multipath encap addition (backport #14835)
StormLiangMS
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to sonic-net/sonic-buildimage
that referenced
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Dec 1, 2023
Why I did it
To fix the EVPN type5 failure seen in FRR when there are multipaths for nexthop. The type5 routes were queued
show ip route vrf Vrf1
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
f - OpenFabric,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
t - trapped, o - offload failure
VRF Vrf1:
B>q 5.5.5.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40
C>* 10.0.0.0/24 is directly connected, Vlan10, 00:00:43
B>q 100.0.0.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40
Work item tracking
Microsoft ADO (number only):
How I did it
Porting the FRR fix FRRouting/frr#14835
How to verify it
Validated EVPN multipath with the scenario and confirmed its working.
mssonicbld
pushed a commit
to mssonicbld/sonic-buildimage
that referenced
this pull request
Dec 1, 2023
Why I did it
To fix the EVPN type5 failure seen in FRR when there are multipaths for nexthop. The type5 routes were queued
show ip route vrf Vrf1
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
f - OpenFabric,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
t - trapped, o - offload failure
VRF Vrf1:
B>q 5.5.5.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40
C>* 10.0.0.0/24 is directly connected, Vlan10, 00:00:43
B>q 100.0.0.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40
Work item tracking
Microsoft ADO (number only):
How I did it
Porting the FRR fix FRRouting/frr#14835
How to verify it
Validated EVPN multipath with the scenario and confirmed its working.
Merged
11 tasks
yxieca
pushed a commit
to sonic-net/sonic-buildimage
that referenced
this pull request
Dec 4, 2023
Why I did it
To fix the EVPN type5 failure seen in FRR when there are multipaths for nexthop. The type5 routes were queued
show ip route vrf Vrf1
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
f - OpenFabric,
> - selected route, * - FIB route, q - queued, r - rejected, b - backup
t - trapped, o - offload failure
VRF Vrf1:
B>q 5.5.5.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40
C>* 10.0.0.0/24 is directly connected, Vlan10, 00:00:43
B>q 100.0.0.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40
Work item tracking
Microsoft ADO (number only):
How I did it
Porting the FRR fix FRRouting/frr#14835
How to verify it
Validated EVPN multipath with the scenario and confirmed its working.
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The fpm code path in building a ecmp route for evpn has a bug that caused it to not add the encap attribute to the netlink message. See #f0f7b285b99dbd971400d33feea007232c0bd4a9 for the single path case being fixed.