The management GUI provides
notification and assistance in fixing many connectivity errors. If
possible, go to in the management GUI and
see if there are error alerts associated with missing hardware or
Ethernet errors. For any error alerts, run the fix procedure in the
recommended order.
If the
management GUI is not accessible, use
the following methods to determine if an Ethernet link on a node canister has failed:
- If there are two canisters in the control enclosure, log into the service assistant of the other
node canister, then use the Change Node panel on the
Home page to select the canister with the failed Ethernet link. In the
Node Detail, view the Ports tab to understand each
port's operational state. Refer to the Access tab to see what system
addresses provide access to management functions.
- At the rear of the node canister, examine the Ethernet status LED for each Ethernet port, as
described in Procedure: Understanding the system status LEDs.
You might also be alerted to an Ethernet link failure
by network monitoring tools on the network connected to the link,
or system functions that depend on the Ethernet link might be degraded
or offline. System functions are listed in .
The link consists of the cable, ports and other interface hardware at each end. All these
components must be working for the link to be working. If multiple links are offline, this might
help identify which hardware is the cause.
- If several links connected to the same switch are failing, perhaps that switch requires
maintenance.
- If both Ethernet port 1 and 2 have failed together, the node canister might need to be
replaced.
- If all links on a single host interface adapter have failed, consider
replacing the host interface adapter or the
canister.
If investigation does not show a clear cause of the failure, attempt each of the following
actions, until the link failure is fixed:
- Ensure that the Ethernet cable providing the link is securely connected at both ends, and the
equipment on both ends is powered on.
- Perform Ethernet switch service procedures for a failing Ethernet link.
- Replace the Ethernet cable with a new one of the same type.
- Replace the node canister by following the steps in Replacing a node canister.