Wido den Hollander 4816e05938 KVM: add configurable MAC/IP script hook for static ARP/NDP and routes (#13495) ... * KVM: add configurable MAC/IP script hook for static ARP/NDP and routes Introduces a new agent.properties option `vm.network.macip.static` (false by default) that makes BridgeVifDriver invoke on modifymacip.sh on every NIC plug (VM start) and unplug (VM stop). This is very useful in EVPN+VXLAN environments as it can reduce BUM traffic. By setting static ARP/NDP entries bridges can be configured using 'neigh_suppress on' as the ARP/NDP entries are already set statically by CloudStack. Setting 'neigh_suppress on' requires a manual change in the modifyvxlan.sh script as this is not the default behavior. * vxlan: In EVPN mode, disable ARP/NDP learning FRR populates the FDB via BGP EVPN, so kernel data-plane learning is redundant and counterproductive. Static ARP (IPv4) and NDP (IPv6) entries are added on startup of the Instance and remove on shutdown. FRR populates the FDB/neighbor table via control plane, and neigh_suppress tells the kernel bridge to use that information instead of flooding. This will vastly reduce BUM traffic with static ARP/NDP entries.		2026-07-10 11:40:20 +02:00
..
installer	removed code in comments (#11145)	2025-12-08 16:31:48 +01:00
network	Enhance DHCP functionality by adding lease timeout support (#12410)	2026-07-09 21:57:14 +02:00
storage	CLVM enhancements and fixes (#12617)	2026-06-16 16:16:51 +05:30
util	Remove realhostip references from the code (#12856)	2026-06-10 11:39:39 +05:30
vm	KVM: add configurable MAC/IP script hook for static ARP/NDP and routes (#13495)	2026-07-10 11:40:20 +02:00
coverage-grade.sh	Add code coverage grading workflow (#13140)	2026-06-18 11:48:56 +02:00