Opened 9 years ago
Closed 9 years ago
#1351 closed (fixed)
SCS: 2 hop path has no dependencies
Reported by: | Aaron Helsinger | Owned by: | xyang@maxgigapop.net |
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Priority: | major | Milestone: | |
Component: | STITCHING | Version: | SPIRAL7 |
Keywords: | Cc: | ||
Dependencies: |
Description
A circuit from Utah DDC to PG Utah shows no dependencies between the hops at the SCS. One of those should depend on the other, though it doesn't matter which.
Attachments (1)
Change History (3)
comment:1 Changed 9 years ago by
Changed 9 years ago by
Attachment: | ddc_emulab.rspec added |
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comment:2 Changed 9 years ago by
Resolution: | → fixed |
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Status: | new → closed |
Added tie breaker for between non-translation aggregates that have equal number of hops and equal VLAN range size.
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Presumably the issue is that there is no heuristic for the case where hops on 2 facing AMs both do not do VLAN translation. In such a case 1 needs to depend on the other. Perhaps pick the one that has fewer VLANs to pick from, or which has more other stitching ports that do not do translation (on the theory that tags are more constrained there).
Attached request RSpec illustrates the problem.