Use the Network Topology window to see a tree view of the network nodes known to this Hardware Management Console (HMC). Examples of such nodes are managed systems, logical partitions, storage, and other HMCs. You can view attributes of a node by selecting the node in the tree view that is shown in the left pane under Current Topology. Attributes vary according to the type of node. Some examples are IP address, host name, location code, and status. Click Refresh to rediscover the topology and to query the nodes again for status and other attributes.
This task also allows you to save a snapshot of the current topology and to view that saved reference topology. You can view attributes of a node in this saved topology by selecting the node in the tree view that is shown in the left pane under Saved Topology.
To test network connectivity to a node, you can select the node in either the current or the saved topology and click Ping Current Node or Ping Saved Node, available only for nodes that include an IP address or a host name.
Possible status for each node:| Node | Possible Status |
| Local HMC | All nodes OK, Some nodes failed, All nodes failed (cumulative status of all child nodes) |
| Remote HMC | Online, Offline |
| Interface | No link, Half duplex link, Full duplex link |
| Storage Facility | Status not reported. |
| Managed system | Managed system status reported by "lssyscfg" command (for example, Operating, Running) |
| FSP | Online, Offline |
| LPAR | LPAR status reported by "lssyscfg" command. LPARs can also carry a "Connection status" to report their current network status as one of the following Active, On, Off, Offline |
| BPA | BPA status reported by "lssyscfg" command. |
| BPC | Online, Offline |
Meaning of each status:
Note: The second column represents how the status value is evaluated when
determining cumulative status for the Local HMC node.
| Status | Evaluation for cumulative status (OK/Fail) | Meaning |
| All nodes OK | OK | Child node statuses are OK. |
| Some nodes failed | Fail | One or more child node statuses failed. |
| All nodes failed | Fail | All child nodes statuses failed. |
| No link | Fail | No link detected on interface. |
| Half duplex link | OK | Half duplex link detected on interface. |
| Full duplex link | OK | Full duplex link detected on interface. |
| Active | OK | LPAR is pingable and known to RMC. |
| On | Fail | LPAR is pingable but not known to RMC. |
| Off | Fail | LPAR is neither pingable nor known to RMC. |
| Offline | Fail | For LPARs: LPAR is not pingable but is known to RMC.
|
| Online | OK | Remote HMC is pingable. FSP is pingable. BPC is pingable. |
| Unknown | Fail | Status cannot be determined. |
| Operating, Running, or any other text from "lssyscfg" | N/A | Not evaluated when determining the cumulative status. |
You can find more detailed help on the following elements of this window: