Lbfo Driver
Apr 17, 2015 There's a few reasons these APIs weren't carried forward to NDIS 6. LBFO stands for Load Balancing + Failover. But the APIs don't actually help with Load. There's a few reasons these APIs weren't carried forward to NDIS 6. LBFO stands for Load Balancing + Failover. But the APIs don't actually help with Load. This documentation is archived and is not being maintained. A miniport driver specifies that it implements LBFO during installation. To specify LBFO support, the. Html Editor Software Ware on this page. Network connectivity problem when Windows Server 2012 R2 is configured to use LBFO on a NIC teaming. Driver registers its miniport general attributes by using.
There's a few reasons these APIs weren't carried forward to NDIS 6. • LBFO stands for Load Balancing + Failover. But the APIs don't actually help with Load Balancing -- when you mark a miniport as 'secondary', NDIS removes all bindings from the NIC. In effect, the NIC is forced to be a 'standby' NIC. • The Failover aspect doesn't work very well either. In order to fail over, NDIS must build up all the bindings to the new miniport. This isn't seamless to applications; from their point of view, you just inserted a new network adapter, and need to acquire a new IP address, etc.
• If failover decisions are made by the link partner (e.g., LACP) then you don't want to entirely disable the standby NIC. You need to send out a heartbeat so the switch doesn't conclude the standby NIC has failed. • Since the API is called by the miniport, the LBFO logic needs to be driven from the miniport driver. But modern LBFO architectures want to separate out the NIC and the LBFO logic. In the extreme case of Windows Server NIC Teaming feature, the LBFO driver can team together NICs from unrelated vendors into the same team. There's a few reasons these APIs weren't carried forward to NDIS 6. • LBFO stands for Load Balancing + Failover.
But the APIs don't actually help with Load Balancing -- when you mark a miniport as 'secondary', NDIS removes all bindings from the NIC. In effect, the NIC is forced to be a 'standby' NIC. • The Failover aspect doesn't work very well either. In order to fail over, NDIS must build up all the bindings to the new miniport. This isn't seamless to applications; from their point of view, you just inserted a new network adapter, and need to acquire a new IP address, etc. • If failover decisions are made by the link partner (e.g., LACP) then you don't want to entirely disable the standby NIC. You need to send out a heartbeat so the switch doesn't conclude the standby NIC has failed.
• Since the API is called by the miniport, the LBFO logic needs to be driven from the miniport driver. But modern LBFO architectures want to separate out the NIC and the LBFO logic. In the extreme case of Windows Server NIC Teaming feature, the LBFO driver can team together NICs from unrelated vendors into the same team.