[LU-2670] LNET routing to the same destination through multiple networks

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.3.0
• Type: Bug
• Priority: Minor
• Reporter: Alexander Oltu
• Assignee: Isaac Huang (Inactive)
• Resolution: Done
• Severity: 3

Description

We would like to export multi-rail Lustre through routers to one destination network. It looks like it is not allowed in current implementation.

My lnet module option is:

routes="gni0 xxx.xxx.110.xxx@tcp0 xxx.xxx.111.xxx@tcp1"

I get this error:
LustreError: 5598:0:(router.c:399:lnet_check_routes()) Routes to gni via xxx.xxx.111.xxx@tcp1 and xxx.xxx.110.xxx@tcp not supported

The manual states (p301):
"It is an error to specify routes to the same destination with routers on different local networks."

It will be very great if this limitation can be removed.