Monitor the reachability of network ports
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Reachability monitoring is built into ONTAP. Use this monitoring to identify when the physical network topology does not match the ONTAP configuration. In some cases, ONTAP can repair port reachability. In other cases, additional steps are required.
About this task
Use these commands to verify, diagnose, and repair network misconfigurations that stem from the ONTAP configuration not matching either the physical cabling or the network switch configuration.
Step
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View port reachability:
network port reachability show
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Use the following decision tree and table to determine the next step, if any.
Reachability-status | Description |
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ok |
The port has layer 2 reachability to its assigned broadcast domain. |
Unexpected ports |
The port has layer 2 reachability to its assigned broadcast domain; however, it also has layer 2 reachability to at least one other broadcast domain. |
Unreachable ports |
If a single broadcast domain has become partitioned into two different reachability sets, you can split a broadcast domain to synchronize the ONTAP configuration with the physical network topology. |
misconfigured-reachability |
The port does not have layer 2 reachability to its assigned broadcast domain; however, the port does have layer 2 reachability to a different broadcast domain. |
no-reachability |
The port does not have layer 2 reachability to any existing broadcast domain. |
multi-domain-reachability |
The port has layer 2 reachability to its assigned broadcast domain; however, it also has layer 2 reachability to at least one other broadcast domain. |
unknown |
If the reachability-status is "unknown", then wait a few minutes and try the command again. |
After you repair a port, you need to check for and resolve displaced LIFs and VLANs. If the port was part of an interface group, you also need to understand what happened to that interface group. For more information, see Repair port reachability.