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PeerAPeerB

Two nids on tcp, one nid on tcp1

Two nids on tcp, one nid on tcp1
Code Block
lnetctl net show 
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.110@tcp
          status: up
          interfaces:
              0: eth0
        - nid: 192.168.122.253@tcp
          status: up
          interfaces:
              0: eth1
    - net type: tcp1
      local NI(s):
        - nid: 192.168.122.238@tcp1
          status: up
          interfaces:
              0: eth2
Code Block
lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.103@tcp
          status: up
          interfaces:
              0: eth0
        - nid: 192.168.122.154@tcp
          status: up
          interfaces:
              0: eth1
    - net type: tcp1
      local NI(s):
        - nid: 192.168.122.127@tcp1
          status: up
          interfaces:
              0: eth2

Prioritize Source

Local Source NID 

UDSPBehaviour
Prioritize one of PeerA NIDs on tcp

Prioritized nid is used when its net (tcp) is used on peerA

Priority of the nid is 0

Every send toggles between the prioritized nid on tcp and the nid on tcp1 on the source. The remaining nid on tcp is not used


Code Block
lnetctl udsp add --src 192.168.122.110@tcp


lnetctl udsp  show 
udsp:
    - idx: 0
      src: 192.168.122.110@tcp
      dst: NA
      rte: NA
      action:
          priority: 0
Code Block
PeerA:


lnetctl net show -v 4
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
          statistics:
              send_count: 0
              recv_count: 0
              drop_count: 0
          udsp info:
              net priority: -1
              nid priority: -1
          sent_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 0
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 0
              peer_credits: 0
              peer_buffer_credits: 0
              credits: 0
          dev cpt: 0
          tcp bonding: 0
          CPT: "[0]"
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.110@tcp
          status: up
          interfaces:
              0: eth0
          statistics:
              send_count: 4
              recv_count: 4
              drop_count: 0
          udsp info:
              net priority: -1
              nid priority: 0
          sent_stats:
              put: 0
              get: 4
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 0
              get: 1
              reply: 3
              ack: 0
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 1000
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          dev cpt: -1
          tcp bonding: 0
          CPT: "[0]"
        - nid: 192.168.122.253@tcp
          status: up
          interfaces:
              0: eth1
          statistics:
              send_count: 2
              recv_count: 2
              drop_count: 0
          udsp info:
              net priority: -1
              nid priority: -1
          sent_stats:
              put: 0
              get: 2
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 0
              get: 1
              reply: 1
              ack: 0
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 1000
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          dev cpt: -1
          tcp bonding: 0
          CPT: "[0]"
    - net type: tcp1
      local NI(s):
        - nid: 192.168.122.238@tcp1
          status: up
          interfaces:
              0: eth2
          statistics:
              send_count: 5
              recv_count: 5
              drop_count: 0
          udsp info:
              net priority: -1
              nid priority: -1
          sent_stats:
              put: 2
              get: 3
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 1
              get: 0
              reply: 3
              ack: 1
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 1000
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          dev cpt: -1
          tcp bonding: 0
          CPT: "[0]"

Local Source Net

 

UDSPBehaviour

Prioritize tcp1 as source on PeerA

Note that source NID rule is still in the list.

Prioritized tcp1 is used on PeerA

Priority of tcp1 is 0 (highest)

Every send on PeerA goes out tcp1. NID rule is overriden.

Code Block
lnetctl udsp add --src tcp1


lnetctl udsp show
udsp:
    - idx: 0
      src: 192.168.122.110@tcp
      dst: NA
      rte: NA
      action:
          priority: 0
    - idx: 1
      src: tcp1
      dst: NA
      rte: NA
      action:
          priority: 0





PeerA:


Code Block
lnetctl net show -v 4
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
          statistics:
              send_count: 0
              recv_count: 0
              drop_count: 0
          udsp info:
              net priority: -1
              nid priority: -1
          sent_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 0
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 0
              peer_credits: 0
              peer_buffer_credits: 0
              credits: 0
          dev cpt: 0
          tcp bonding: 0
          CPT: "[0]"
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.110@tcp
          status: up
          interfaces:
              0: eth0
          statistics:
              send_count: 9
              recv_count: 9
              drop_count: 0
          udsp info:
              net priority: -1
              nid priority: 0
          sent_stats:
              put: 1
              get: 8
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 1
              get: 2
              reply: 6
              ack: 0
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 1000
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          dev cpt: -1
          tcp bonding: 0
          CPT: "[0]"
        - nid: 192.168.122.253@tcp
          status: up
          interfaces:
              0: eth1
          statistics:
              send_count: 2
              recv_count: 2
              drop_count: 0
          udsp info:
              net priority: -1
              nid priority: -1
          sent_stats:
              put: 0
              get: 2
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 0
              get: 1
              reply: 1
              ack: 0
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 1000
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          dev cpt: -1
          tcp bonding: 0
          CPT: "[0]"
    - net type: tcp1
      local NI(s):
        - nid: 192.168.122.238@tcp1
          status: up
          interfaces:
              0: eth2
          statistics:
              send_count: 19
              recv_count: 19
              drop_count: 0
          udsp info:
              net priority: 0
              nid priority: -1
          sent_stats:
              put: 4
              get: 15
              reply: 0
              ack: 0
              hello: 0
          received_stats:
              put: 1
              get: 0
              reply: 15
              ack: 3
              hello: 0
          dropped_stats:
              put: 0
              get: 0
              reply: 0
              ack: 0
              hello: 0
          health stats:
              health value: 1000
              interrupts: 0
              dropped: 0
              aborted: 0
              no route: 0
              timeouts: 0
              error: 0
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          dev cpt: -1
          tcp bonding: 0
          CPT: "[0]"




Prioritize Destination

Local Destination NID

UDSPBehaviour

On PeerA, prioritize one of PeerB's NIDs on tcp 


Prioritized NID tcp NID on PeerA is used when tcp is selected on peerA

Priority of the prioritized NID is 0 (lnetct peer show -v 4)

Sends on PeerA alternate between tcp and tcp1. When tcp is used, send goes to the prioritized dest NID

Code Block
lnetctl udsp add --dst 192.168.122.103@tcp


lnetctl udsp show
udsp:
    - idx: 0
      src: NA
      dst: 192.168.122.103@tcp
      rte: NA
      action:
          priority: 0

PeerB: use "lnetct net show -v" to verify the receive count going up on the prioritized NID 

PeerA: use "lnetct peer show -v 4" to verify dest NID priority.

...

UDSPBehaviour

On PeerA, prioritize tcp1 as dest net


Prioritized dest net (tcp1) is used to send from PeerA

Priority of the prioritized dest net is 0 (lnetct peer show -v 4)

Sends on PeerA use tcp1.

Code Block
lnetctl udsp add --dst tcp1


lnetctl udsp show
udsp:
    - idx: 0
      src: NA
      dst: tcp1
      rte: NA
      action:
          priority: 0

PeerB: use "lnetctl net show -v" to verify the receive count going up on the nids of the prioritized dest net 

PeerA: use "lnetctl peer show -v 4" to verify dest net priority.

...

UDSPBehaviour

On PeerA, pair one of the tcp nids with one off the PeerB tcp nids 


When paired nid on PeerA is selected, it always sends to its pair on peerB

PeerA nid is listed as preferred NID for the peerB nid ("lnetctl net show -v")

Code Block
lnetctl udsp add --src 192.168.122.110@tcp --dst 192.168.122.103@tcp


lnetctl udsp show
udsp:
    - idx: 0
      src: 192.168.122.110@tcp
      dst: 192.168.122.103@tcp
      rte: NA

PeerA: use "lnetctl peer show -v 4" to verify nid pairing.



Remote Peer Config

The following configuration is used for testing that involves remote peers and routing:

PeerAPeerBGateway1Gateway2
two nids on tcptwo nids on tcp2two nids on tcp, two nids on tcp2two nids on tcp, two nids on tcp2
Code Block
lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.103@tcp
          status: up
          interfaces:
              0: eth0
        - nid: 192.168.122.154@tcp
          status: up
          interfaces:
              0: eth1
Code Block
lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: tcp2
      local NI(s):
        - nid: 192.168.122.110@tcp2
          status: up
          interfaces:
              0: eth0
        - nid: 192.168.122.253@tcp2
          status: up
          interfaces:
              0: eth1



Code Block
lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.102@tcp
          status: up
          interfaces:
              0: eth0
        - nid: 192.168.122.252@tcp
          status: up
          interfaces:
              0: eth1
    - net type: tcp2
      local NI(s):
        - nid: 192.168.122.237@tcp2
          status: up
          interfaces:
              0: eth2
        - nid: 192.168.122.200@tcp2
          status: up
          interfaces:
              0: eth3
Code Block
lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: tcp
      local NI(s):
        - nid: 192.168.122.132@tcp
          status: up
          interfaces:
              0: eth0
        - nid: 192.168.122.150@tcp
          status: up
          interfaces:
              0: eth1
    - net type: tcp2
      local NI(s):
        - nid: 192.168.122.26@tcp2
          status: up
          interfaces:
              0: eth2
        - nid: 192.168.122.244@tcp2
          status: up
          interfaces:
              0: eth3

Gateway Preference For Source

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