Page History

pass - manually run

add UDSP rule to interface A

simulate the error by "lctl net_drop_add -s A -d B -i 2"

do lctl ping B from A

check lnetctl net show -v 3 and found send_count is increased on A as well as other interfaces,  the same time, health stats dropped number increased too

delete the rule by "lctl net_drop_del" and do lctl ping again

send_count shows only A increased by 1

*the "health value" doesn't change

• MR Node with Multiple interfaces
• Add UDSP rule that gives one of the local interfaces highest priority
• Send a PING
• Verify that the NID with the highest priority was used
• Send a PING
• Simulate an <error>
• PING msg should be queued on resend queue
• PING msg will be resent on a different interface
• Failed interface's health value will be decremented
• Failed interface will be placed on the recovery queue
• Eventually health score should recover so then only the preferred interface will be used (sensitivity > 0)

• MR Node with Multiple interfaces: configure two networks, two NIDs on each network
• Add UDSP rule that gives one of the networks highest priority
• Start traffic
• Stop traffic
• Verify that NIDs on the network with the highest priority were used
• Start traffic
• Simulate an <error> (drop on one of the NIDs on the highest priority network)
• Failed interface's health value will be decremented
• Failed interface will be placed on the recovery queue
• Verify that the remaining interface on the failed network is used
• Eventually health score should recover so then only both interface on the preferred network will be used (sensitivity > 0)

• Configure single local network with two NIDs on the network 
• Configure two routers/gateways each providing access to a remote network
• Configure remote peer to have access to the remote network with two NIDs
• Add UDSP rule that designates a router as preferred for all remote peer NIDs 
• Start traffic
• Stop traffic
• Verify that the preferred router was used
• Add a PUT drop rule on the router to drop traffic on one of the interfaces.
• Verify that traffic goes to the other interfaces of the preferred router. There shouldn't be any drop in traffic.
• Add a PUT drop rule on the router to drop traffic on all interfaces.
• Verify that traffic goes through the non-preferred router until one of the interfaces of the preferred router recovers.

pass - manually

(disable by lnetctl set discovery 0)

• Setup: configure single network, 2 NIDs on the network, peer with MR disabled 
• Add UDSP rule that gives one of the interfaces highest priority
• Start traffic
• Stop traffic
• Verify that the NID with the highest priority was used 

• Setup: configure single network, 2 NIDs on the network, peer incapable of MR ("down-rev")
• Add UDSP rule that gives one of the interfaces highest priority
• Start traffic
• Stop traffic
• Verify that the NID with the highest priority was used 

• Setup: configure single network, 2 NIDs on the network, 2 NIDs on the local peer with MR disabled
• Add UDSP rule that gives the highest priority to one of the local peer NIDs
• Start traffic
• Stop traffic
• Verify that local peer NID with the highest priority was used

• Setup: configure single network, 2 NIDs on the network, 2 NIDs on the local peer incapable of MR ("down-rev")
• Add UDSP rule that gives the highest priority to one of the local peer NIDs
• Start traffic
• Stop traffic
• Verify that local peer NID with the highest priority was used