[BGPCEP-347] LSP is not removed from ODL after tunnel status "Down" is reported Created: 23/Dec/15  Updated: 03/Mar/19  Resolved: 18/Jan/16

Status: Resolved
Project: bgpcep
Component/s: PCEP
Affects Version/s: Bugzilla Migration
Fix Version/s: Bugzilla Migration

Type: Bug
Reporter: Milos Fabian Assignee: Milos Fabian
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Operating System: All
Platform: All

External issue ID: 4836

 Description   

A capture of PCEP topology from ODL shows multiple LSPs that were down, but not removed from ODL. (2045,2046,2047,32)

"name": "dlxtx21crs_t2181",
"path": [
"lsp-id": 2045,
"operational": "up",
"lsp-id": 2045,
"lsp-id": 2046,
"operational": "up",
"lsp-id": 2046,
"lsp-id": 32,
"operational": "up",
"lsp-id": 32,
"lsp-id": 2047,
"operational": "up",
"lsp-id": 2047,
"lsp-id": 0,
"operational": "down",
"lsp-id": 0,

 Comments   
Comment by Colin Dixon [ 07/Jan/16 ]

Are there any updates on the progress for this bug? Are we planning to fix it in Beryllium? Lithium-SR4?

Comment by Milos Fabian [ 08/Jan/16 ]

Hi Colin,
no progress yet. Will be fixed in Beryllium and Lithium-SR4 too.

Comment by Milos Fabian [ 12/Jan/16 ]

https://git.opendaylight.org/gerrit/#/c/32343/

Comment by Milos Fabian [ 14/Jan/16 ]

Steps to reproduce:
1. connect ODL PCE with a router (PCC)
2. PCC reports signaled tunnel (i.e. LSP-ID=1)
3. ODL PCE LSP DB looks like:
...
"name": "tunnel1",
"path": [
"lsp-id": 1,
"operational": "up",
"lsp-id": 1,
...
4. PCC reports the tunnel is down - not signaled (LSP-ID=0)
5. ODL PCE LSP DB looks now like:
...
"name": "tunnel1",
"path": [
"lsp-id": 1,
"operational": "up",
"lsp-id": 1,
"lsp-id": 0,
"operational": "down",
"lsp-id": 0,
...
Notice that previously reported LSP (LSP-ID = 1) is still present
6. PCC reports the tunnel is up again (LSP-ID = 2)
7. ODL PCE LSP DB looks like:
...
"name": "tunnel1",
"path": [
"lsp-id": 1,
"operational": "up",
"lsp-id": 1,
"lsp-id": 2,
"operational": "up",
"lsp-id": 2,
...
Notice that the first reported LSP (LSP-ID = 1) is still present

This mean, the LSP is not explicitly reported as removed, so ODL PCE still keep it in the LSP DB.

Comment by Colin Dixon [ 15/Jan/16 ]

The plan is to also fix this bug in stable/lithium, right? In which case I don't see a merged patch there, so it should stay open or a new issue should be opened to track it on stable/lithium.

If I missed the patch, please let me know and my apologies.

Comment by Milos Fabian [ 18/Jan/16 ]

(In reply to Colin Dixon from comment #5)
> The plan is to also fix this bug in stable/lithium, right? In which case I
> don't see a merged patch there, so it should stay open or a new issue should
> be opened to track it on stable/lithium.
>
> If I missed the patch, please let me know and my apologies.

Yes, you are right. The fix should be delivered to stable/lithium too.
Li: https://git.opendaylight.org/gerrit/#/c/32914/

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