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bgpd: check rmac and nh of evpn imported routes #18372

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bgpd: check rmac and nh of evpn imported routes #18372

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6 changes: 4 additions & 2 deletions bgpd/bgp_route.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3947,8 +3947,10 @@ static void bgp_process_main_one(struct bgp *bgp, struct bgp_dest *dest,
* we need to withdraw the route first to clear
* the nh neigh and the RMAC entry.
*/
if (old_select &&
is_route_parent_evpn(old_select))
if (old_select && is_route_parent_evpn(old_select) &&
old_select->attr->nexthop.s_addr != new_select->attr->nexthop.s_addr &&
!memcmp(&old_select->attr->rmac, &new_select->attr->rmac,
sizeof(struct ethaddr)))
bgp_zebra_withdraw_actual(dest, old_select, bgp);

bgp_zebra_route_install(dest, new_select, bgp, true,
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