Stitching request for two links between InstaGENI nodes fails while VLANs are available

[lnevers@bbn.com]

Creating this stitched sliver topology always fails:

• Utah IG if0 <-link1-> GPO IG if0
• Utah IG if1 <-link2-> GPO IG if1

The create sliver fails at each aggregate always with a link error "vlan tag for link2 not available". The same failure occurs if the sliver is created between PG Utah and IG GPO.

These errors are reported while there are VLANs available for the sliver.

$ stitcher.py createsliver lnloop stitch-loop-ig-gpo-pg-utah.rspec
<<<some lines deleted>>>.
16:17:40 INFO     stitch.Aggregate: Writing to '/tmp/lnloop-createsliver-request-11-instageni-gpolab-bbn-com.xml'
16:17:40 INFO     stitch.Aggregate:      Stitcher doing createsliver at https://boss.instageni.gpolab.bbn.com:12369/protogeni/xmlrpc/am
16:17:52 ERROR    omni:  {'output': 'vlan tag for link2 not available', 'code': {'protogeni_error_log': 
'urn:publicid:IDN+instageni.gpolab.bbn.com+log+00f3ac1b7ba2977c78d4923d17ca4ac4', 'am_type': 'protogeni', 'geni_code': 1, 'am_code': 1, 
'protogeni_error_url': 'https://boss.instageni.gpolab.bbn.com/spewlogfile.php3?logfile=00f3ac1b7ba2977c78d4923d17ca4ac4'}, 'value': 0}
16:18:51 ERROR    omni:  {'output': 'vlan tag for link2 not available', 'code': {'protogeni_error_log': 
'urn:publicid:IDN+emulab.net+log+8f080d1bd4bfd1de50d3630f0c5d6115', 'am_type': 'protogeni', 'geni_code': 1, 'am_code': 1, 
'protogeni_error_url': 'https://www.emulab.net/spewlogfile.php3?logfile=8f080d1bd4bfd1de50d3630f0c5d6115'}, 'value': 0}
16:19:34 ERROR    omni:  {'output': 'vlan tag for link2 not available', 'code': {'protogeni_error_log': 
'urn:publicid:IDN+instageni.gpolab.bbn.com+log+c0a614913fe6d86d60afe9932f85ec08', 'am_type': 'protogeni', 'geni_code': 1, 'am_code': 1, 
'protogeni_error_url': 'https://boss.instageni.gpolab.bbn.com/spewlogfile.php3?logfile=c0a614913fe6d86d60afe9932f85ec08'}, 'value': 0}
16:20:34 ERROR    omni:  {'output': 'vlan tag for link2 not available', 'code': {'protogeni_error_log': 
'urn:publicid:IDN+emulab.net+log+21822c0119227e3c22b9b22bb167b5ff', 'am_type': 'protogeni', 'geni_code': 1, 'am_code': 1, 
'protogeni_error_url': 'https://www.emulab.net/spewlogfile.php3?logfile=21822c0119227e3c22b9b22bb167b5ff'}, 'value': 0}
16:21:23 ERROR    omni:  {'output': 'vlan tag for link2 not available', 'code': {'protogeni_error_log': 
'urn:publicid:IDN+instageni.gpolab.bbn.com+log+c8084162ab5a62ea0e5a15e1c8a3095e', 'am_type': 'protogeni', 'geni_code': 1, 'am_code': 1, 
'protogeni_error_url': 'https://boss.instageni.gpolab.bbn.com/spewlogfile.php3?logfile=c8084162ab5a62ea0e5a15e1c8a3095e'}, 'value': 0}
16:21:23 ERROR    stitcher: Stitching failed with an error: Stitching failed trying createsliver at 
<Aggregate urn:publicid:IDN+instageni.gpolab.bbn.com+authority+cm>: AMAPIError: Error from Aggregate: 
code 1. protogeni AM code: 1: vlan tag for link2 
not available.
Stitching failed trying createsliver at <Aggregate urn:publicid:IDN+instageni.gpolab.bbn.com+authority+cm>: 
AMAPIError: Error from Aggregate: code 1. protogeni AM code: 1: vlan tag for link2 not available.

[lnevers@bbn.com]

This is no longer an issue. VLANs are allocated as expected.