path selection enhancements for MED attribute
Affects | Status | Importance | Assigned to | Milestone | ||
---|---|---|---|---|---|---|
Juniper Openstack | Status tracked in Trunk | |||||
R3.2 |
Fix Committed
|
Wishlist
|
Nischal Sheth | |||
R4.0 |
Fix Committed
|
Wishlist
|
Nischal Sheth | |||
Trunk |
Fix Committed
|
Wishlist
|
Nischal Sheth |
Bug Description
MED is an interesting option to provide a backbone IGP metric visibility to contrail in an option B framework. There are usually knobs on router OS (ex. JUNOS) to copy NH IGP metric to prefix MED attributes.
This choice drives two enhancements w.r.t. current MED implementation on contrail:
- ER1: MED may actually be received (and need to be compared) with empty AS. The UC is simply to support static routes redistributed in BGP on PEs, while contrail is in same AS as backbone.
- ER2: MED may be used with different neighbor AS => we should be able to have a knob that allows contrail to operate in "always-
The corresponding UI change is tracked via bug 1697321.
Changed in juniperopenstack: | |
assignee: | nobody → Anuradha (anu05sh) |
tags: | added: contrail-control |
description: | updated |
Review in progress for https:/ /review. opencontrail. org/32735
Submitter: Nischal Sheth (<email address hidden>)