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December 23, 2025 at 2:15 pm in reply to: FABNetv4 Connectivity Stopped Working Between Storage VM and Sites #9323
It is fixed now. Thank you
December 23, 2025 at 12:38 pm in reply to: FABNetv4 Connectivity Stopped Working Between Storage VM and Sites #9320I also noticed the FabnetV4 gateways are not reachable from each of these sites as well
“STAR”, “WASH”, “DALL”, “LOSA”, “SALT”
December 23, 2025 at 12:31 pm in reply to: FABNetv4 Connectivity Stopped Working Between Storage VM and Sites #9317Thank you, Tom. I still have Tout from TACC to MICH and GPN to MICH. attached images.
These notebooks were working fine a couple of days ago.
December 23, 2025 at 12:03 pm in reply to: FABNetv4 Connectivity Stopped Working Between Storage VM and Sites #9313Thank you, @Tom,
I still can see that the problem exists.
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This reply was modified 21 hours, 48 minutes ago by
Arash.
Hi, the “Permission denied (publickey)” error means your SSH key isn’t being accepted. Here are the most likely fixes:
1. Check key permissions:
chmod 600 slice_key2. Verify you added the public key when creating the slice – this is the most common issue for new FABRIC users.
3. Try with verbose mode to see the exact issue:
ssh -vvv -F ssh_config -i slice_key ubuntu@2605:2800:2011:201:f816:3eff:fe5e:c7854. Make sure your slice is fully active (status should be “Active” in the portal).
November 18, 2024 at 11:00 pm in reply to: Chameleon Facility Ports: FABnetv4 (Layer 3) internal server error #7814I think that your project lacks the necessary facility port permissions. I have informed Dr. Syrotiuk about this issue
Best, Arash
Hi Prateek,
Yes, you can use NTP to synchronize the clocks on VMs even if the sites do not have PTP capability. NTP and PTP are separate protocols for clock synchronization
Since NTP does not depend on PTP capabilities, you can deploy NTP on your VMs regardless of whether the sites support PTP. Just ensure that NTP is correctly configured on each VM to synchronize with reliable NTP servers.
We want to work together on a notebook (if it is possible)
September 12, 2023 at 5:43 pm in reply to: Problem with instrumentalizing the slice for measurement network using elk #5289Hi, I think you should run this code in the JupyterHub shell, rather than in the notebooks.
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This reply was modified 2 years, 3 months ago by
Arash.
Hi, You can use the following code to extend your lease:
from datetime import datetime from datetime import timezone from datetime import timedelta #Set end host to now plus 1 day end_date = (datetime.now(timezone.utc) + timedelta(days=1)).strftime("%Y-%m-%d %H:%M:%S %z") try: slice = fablib.get_slice(name=slice_name) slice.renew(end_date) except Exception as e: print(f"Exception: {e}")-
This reply was modified 2 years, 10 months ago by
Arash.
Yesterday our project received confirmation that the volumes are created. How should I proceed?
Volumes are created on FABRIC-UTAH, FABRIC-TACC, FABRIC-STAR, FABRIC-MICH, FABRIC-FIU with the following information on all sites.-
This reply was modified 2 years, 11 months ago by
Arash.
Thank you I am still unable to run the experiment with the following error:
Exception: Failed to submit slice: Status.FAILURE, (500) Reason: INTERNAL SERVER ERROR HTTP response headers: HTTPHeaderDict({'Server': 'nginx/1.21.6', 'Date': 'Sat, 28 Jan 2023 17:39:55 GMT', 'Content-Type': 'text/html; charset=utf-8', 'Content-Length': '311', 'Connection': 'keep-alive', 'Access-Control-Allow-Credentials': 'true', 'Access-Control-Allow-Headers': 'DNT, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type, Range, Authorization', 'Access-Control-Allow-Methods': 'GET, POST, PUT, PATCH, DELETE, OPTIONS', 'Access-Control-Allow-Origin': '*', 'Access-Control-Expose-Headers': 'Content-Length, Content-Range, X-Error', 'X-Error': 'PDP Authorization check failed - Policy Violation: Your project is lacking Component.Storage tag to provision a VM with attached storage.'}) HTTP response body: b'{\n "errors": [\n {\n "details": "PDP Authorization check failed - Policy Violation: Your project is lacking Component.Storage tag to provision a VM with attached storage.",\n "message": "Internal Server Error"\n }\n ],\n "size": 1,\n "status": 500,\n "type": "error"\n}'Yes, I did the same thing, but the result was the same.
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This reply was modified 3 years, 3 months ago by
Arash.
No I am using
NIC_ConnectX_5When changing
slice.add_l2network(name='net_c', type='L2Bridge', interfaces=[ifaceclient, ifaceRouterC])toslice.add_l2network(name='net_c', type='L2PTP', interfaces=[ifaceclient, ifaceRouterC])on the host we cannot run the commandethtool -K ens8 rx-fcs on -
This reply was modified 21 hours, 48 minutes ago by
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