Connection between two infiniband ports

Hi All,

I have a remote system in which ib0,ib1,ib2,ib3,ib4 and ib5 are the infiniband network interfaces.

ib0 and ib1 are externally connected back to back with a cable[loopback connection].

ib2 and ib3 are not connected.

ib4 and ib5 are externally connected back to back with a cable[loopback connection].

Is there any Linux command or mellanox utility through which one can detect that [ ib0 - ib1 ] and [ ib4 - ib5 ] are the pair of network devices connected back to back given all the network devices? Please provide some pointers on how to detect the connected pair.

Thanks in Advance!

Appreciate your reply. I went and tried running ibtracert and it works.

Regarding subnet manager: For infiniband 2 port devices I believe only 1 subnet manager will be running. Does ibtracert work on infiniband 2 port devices as only 1 subnet manager will be running ?

(Assuming you have 2 subnet managers running on these looped back ports) you could use /sbin/ibtracert to see the connection paths. Though just dumping the ibnetdiscover/ibdiagnet for each port should be pretty self explanatory.

InfiniBand is a powerful new architecture designed to support I/O connectivity for the Internet infrastructure. Infini Band is supported by all the major OEM server vendors as a means to expand beyond and create the next generation I/O interconnect standard in servers. For the first time, a high volume, industry standard I/O interconnect extends the role of traditional “in the box” busses. InfiniBand is unique in providing both, an “in the box” back plane solution, an external interconnect, and “Bandwidth Out of the box”, thus it provides connectivity in a way previously reserved only for traditional networking interconnects. This unification of I/O and system area networking requires a new architecture that supports the needs of these two previously separate domains. The assistance of custom essay writing service https://essayacademia.com/ helps students understand the basics of every custom written paper, as well as the elements of creative writing.

IBA architecture has (at least one) subnet manager per subnet. In the case of back to back CAs (without switches), each back to back connection is separate subnet. You can run multiple instances of SM on same machine but it needs proper configuration.

Does your custom essay writing service https://handmadewritings.com/ really can help with Linux command or mellanox utility?