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RDMA over Nexus 5548up

Hello everyone.

I have a problem again.

I just set up my HyperV CLuster.

Cluster consists of: 3 HP DL360p G8 each with 2 Intel Xeon 2660 V2 10 Core and 64GB RAM.

Each server has a Mellanox ConnectX3 Dual 10Gbit network card installed and a second 10Gbit dual card (which can not RDMA).

This 10Gbit network(ConnectX3 cards) is connected to a Cisco Nexus 5548up(layer 2) switch.

If I connect 2 servers directly with Twinax cables, RDMA traffic is displayed correctly in perfmon.
So everything is configured correctly on the Windows side.

Only over the switch no RDMA traffic comes about.

Here the COnfig of the switch:

Nexus5K(config)# sh run

!Command: show running-config
!Time: Thu May 26 14:33:49 2022

version 5.0(3)N2(2b)
no feature telnet
no telnet server enable
feature lldp

username admin password 5 $1$BooxXhUp$ffgxsJ6J3PX02R1GDLtgO.  role network-admin
no password strength-check
ssh key rsa 2048
ip domain-lookup
switchname Nexus5K
class-map type qos class-fcoe
class-map type qos match-all roce
  match cos 5
class-map type queuing roce
  match qos-group 5
class-map type queuing class-fcoe
  match qos-group 1
class-map type queuing class-all-flood
  match qos-group 2
class-map type queuing class-ip-multicast
  match qos-group 2
policy-map type qos roce
  class roce
    set qos-group 5
  class class-fcoe
    set qos-group 1
policy-map type queuing roce
  class type queuing roce
    bandwidth percent 70
  class type queuing class-fcoe
    bandwidth percent 20
  class type queuing class-default
    bandwidth percent 10
class-map type network-qos roce
  match qos-group 5
class-map type network-qos class-fcoe
  match qos-group 1
class-map type network-qos class-all-flood
  match qos-group 2
class-map type network-qos class-ip-multicast
  match qos-group 2
policy-map type network-qos roce
  class type network-qos roce
    pause no-drop
    mtu 9000
  class type network-qos class-fcoe
    pause no-drop
    mtu 2158
  class type network-qos class-default
    mtu 9216
    multicast-optimize
system qos
  service-policy type qos input roce
  service-policy type queuing input roce
  service-policy type queuing output roce
  service-policy type network-qos roce
snmp-server user admin network-admin auth md5 0xdf70cfdc76ddb562a87e519c32757594
 priv 0xdf70cfdc76ddb562a87e519c32757594 localizedkey
rmon event 1 log description FATAL(1) owner PMON@FATAL
rmon event 2 log description CRITICAL(2) owner PMON@CRITICAL
rmon event 3 log description ERROR(3) owner PMON@ERROR
rmon event 4 log description WARNING(4) owner PMON@WARNING
rmon event 5 log description INFORMATION(5) owner PMON@INFO
snmp-server community Nexus group network-operator

vrf context management
vlan 1
vlan 200
  name Stotage1
vlan 300
  name Storage2

interface Ethernet1/1
  priority-flow-control mode on
  switchport access vlan 200

interface Ethernet1/2
  priority-flow-control mode on
  switchport access vlan 300

interface Ethernet1/3
  priority-flow-control mode on
  switchport access vlan 200

interface Ethernet1/4
  priority-flow-control mode on
  switchport access vlan 300

interface Ethernet1/5
  priority-flow-control mode on
  switchport access vlan 200

interface Ethernet1/6
  priority-flow-control mode on
  switchport access vlan 300

interface Ethernet1/7

interface Ethernet1/8

interface Ethernet1/9

interface Ethernet1/10

interface Ethernet1/11

interface Ethernet1/12

interface Ethernet1/13

interface Ethernet1/14

interface Ethernet1/15

interface Ethernet1/16

interface Ethernet1/17

interface Ethernet1/18

interface Ethernet1/19

interface Ethernet1/20

interface Ethernet1/21

interface Ethernet1/22

interface Ethernet1/23

interface Ethernet1/24

interface Ethernet1/25

interface Ethernet1/26

interface Ethernet1/27

interface Ethernet1/28

interface Ethernet1/29

interface Ethernet1/30

interface Ethernet1/31

interface Ethernet1/32

interface mgmt0
  vrf member management
line console
line vty
boot kickstart bootflash:/n5000-uk9-kickstart.5.0.3.N2.2b.bin
boot system bootflash:/n5000-uk9.5.0.3.N2.2b.bin


Nexus5K(config)#

can someone help pls?

1 Accepted Solution

Accepted Solutions

Solved!

All switch ports must be configured for RDMA traffic in trunk mode.

 

View solution in original post

2 Replies 2

All NIC's are in RocE V1 Mode!!

Solved!

All switch ports must be configured for RDMA traffic in trunk mode.

 

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