lib: nexthop code should use uint16_t for nexthop counting #16967
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It's possible to specify via the cli and configure how many nexthops that are allowed on the system. If you happen to have > 255 then things are about to get interesting otherwise. Let's allow up to 65k nexthops (ha!) Signed-off-by: Donald Sharp <[email protected]>
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Shouldn't we fix also |
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yes eventually. We are not experiencing this problem with pim at the moment and I wanted a fix in for their specific problem |
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lguohan
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Why I did it Added patches from FRR to support scale of BGP neighbors to 256/514. Below are the patches Patch FRR Pull request 0069-lib-nexthop-code-should-use-uint16_t-for-nexthop-cou.patch FRRouting/frr#16967 0070-Allow-16-bit-size-for-nexthops.patch FRRouting/frr#17023 0071-zebra-Only-notify-dplane-work-pthread-when-needed.patch FRRouting/frr#17062 0072-Fix-up-improper-handling-of-nexthops-for-nexthop-tra.patch FRRouting/frr#17076 0073-remove-in6addr-cmp.patch FRRouting/frr#17312 0074-bgp-best-port-reordering.patch FRRouting/frr#15572 0075-bgp-mp-info-changes.patch FRRouting/frr#16961 0076-Optimizations-and-problem-fixing-for-large-scale-ecmp-from-bgp.patch FRRouting/frr#17229
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…net#21199) Why I did it Added patches from FRR to support scale of BGP neighbors to 256/514. Below are the patches Patch FRR Pull request 0069-lib-nexthop-code-should-use-uint16_t-for-nexthop-cou.patch FRRouting/frr#16967 0070-Allow-16-bit-size-for-nexthops.patch FRRouting/frr#17023 0071-zebra-Only-notify-dplane-work-pthread-when-needed.patch FRRouting/frr#17062 0072-Fix-up-improper-handling-of-nexthops-for-nexthop-tra.patch FRRouting/frr#17076 0073-remove-in6addr-cmp.patch FRRouting/frr#17312 0074-bgp-best-port-reordering.patch FRRouting/frr#15572 0075-bgp-mp-info-changes.patch FRRouting/frr#16961 0076-Optimizations-and-problem-fixing-for-large-scale-ecmp-from-bgp.patch FRRouting/frr#17229
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…net#21199) Why I did it Added patches from FRR to support scale of BGP neighbors to 256/514. Below are the patches Patch FRR Pull request 0069-lib-nexthop-code-should-use-uint16_t-for-nexthop-cou.patch FRRouting/frr#16967 0070-Allow-16-bit-size-for-nexthops.patch FRRouting/frr#17023 0071-zebra-Only-notify-dplane-work-pthread-when-needed.patch FRRouting/frr#17062 0072-Fix-up-improper-handling-of-nexthops-for-nexthop-tra.patch FRRouting/frr#17076 0073-remove-in6addr-cmp.patch FRRouting/frr#17312 0074-bgp-best-port-reordering.patch FRRouting/frr#15572 0075-bgp-mp-info-changes.patch FRRouting/frr#16961 0076-Optimizations-and-problem-fixing-for-large-scale-ecmp-from-bgp.patch FRRouting/frr#17229
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…net#21199) Why I did it Added patches from FRR to support scale of BGP neighbors to 256/514. Below are the patches Patch FRR Pull request 0069-lib-nexthop-code-should-use-uint16_t-for-nexthop-cou.patch FRRouting/frr#16967 0070-Allow-16-bit-size-for-nexthops.patch FRRouting/frr#17023 0071-zebra-Only-notify-dplane-work-pthread-when-needed.patch FRRouting/frr#17062 0072-Fix-up-improper-handling-of-nexthops-for-nexthop-tra.patch FRRouting/frr#17076 0073-remove-in6addr-cmp.patch FRRouting/frr#17312 0074-bgp-best-port-reordering.patch FRRouting/frr#15572 0075-bgp-mp-info-changes.patch FRRouting/frr#16961 0076-Optimizations-and-problem-fixing-for-large-scale-ecmp-from-bgp.patch FRRouting/frr#17229
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…net#21199) Why I did it Added patches from FRR to support scale of BGP neighbors to 256/514. Below are the patches Patch FRR Pull request 0069-lib-nexthop-code-should-use-uint16_t-for-nexthop-cou.patch FRRouting/frr#16967 0070-Allow-16-bit-size-for-nexthops.patch FRRouting/frr#17023 0071-zebra-Only-notify-dplane-work-pthread-when-needed.patch FRRouting/frr#17062 0072-Fix-up-improper-handling-of-nexthops-for-nexthop-tra.patch FRRouting/frr#17076 0073-remove-in6addr-cmp.patch FRRouting/frr#17312 0074-bgp-best-port-reordering.patch FRRouting/frr#15572 0075-bgp-mp-info-changes.patch FRRouting/frr#16961 0076-Optimizations-and-problem-fixing-for-large-scale-ecmp-from-bgp.patch FRRouting/frr#17229
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#### Why I did it
Added patches from FRR to support scale of BGP neighbors to 256/514. Below are the patches
| Patch | FRR Pull request|
| ------ |--------- |
| 0069-lib-nexthop-code-should-use-uint16_t-for-nexthop-cou.patch | FRRouting/frr#16967 |
| 0070-Allow-16-bit-size-for-nexthops.patch | FRRouting/frr#17023 |
| 0071-zebra-Only-notify-dplane-work-pthread-when-needed.patch | FRRouting/frr#17062 |
| 0072-Fix-up-improper-handling-of-nexthops-for-nexthop-tra.patch | FRRouting/frr#17076 |
| 0073-remove-in6addr-cmp.patch | FRRouting/frr#17312 |
| 0074-bgp-best-port-reordering.patch | FRRouting/frr#15572 |
| 0075-bgp-mp-info-changes.patch | FRRouting/frr#16961 |
| 0076-Optimizations-and-problem-fixing-for-large-scale-ecmp-from-bgp.patch | FRRouting/frr#17229 |
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It's possible to specify via the cli and configure how many nexthops that are allowed on the system. If you happen to have > 255 then things are about to get interesting otherwise.
Let's allow up to 65k nexthops (ha!)