Topology View Left Pane Options

The Protocols list includes all protocols present in the current topology. Figure 1 shows an example.

Figure 1: Protocols List

Protocols can be selected or deselected by checking or clearing the corresponding check boxes. Only network elements that support selected protocols are displayed in the topology map.

The Types list in the left pane of the Topology view includes categories of nodes and links found in the network. Figure 2 shows a sample Types list.

Figure 2: Left Pane Types List

Different types are associated with different icons, which are reflected in the topology map. You can select or deselect a type by checking or clearing the corresponding check box. Only selected options are displayed in the topology map.

The autonomous systems (AS) list assigns a color, for purposes of representation on the topology map, for each AS number configured in the network. As noted in Figure 3, routers configured with AS 65536 would appear on the topology map as red dots. NONE shows the color assigned to routers with no AS configured.

Figure 3: AS List

Select or deselect AS numbers by checking or clearing the corresponding check boxes. Only selected AS numbers are displayed in the topology map.

The ISIS Areas list assigns a color, for purposes of representation on the topology map, for each IS-IS area identifier configured in the network. The area identifier is the first three bytes of the ISO network entity title (NET) address. As noted in Figure 4, routers whose NET addresses include area identifier 11.0007 appear on the topology map as red dots. Those with area identifier 49.0011 appear as green dots. NONE shows the color assigned to routers with no NET address configured.

Figure 4: ISIS Areas List

Select or deselect ISIS area identifiers by checking or clearing the corresponding check boxes. Only selected area identifiers are displayed in the topology map.

The OSPF Areas list assigns a color, for purposes of representation on the topology map, for each OSPF area configured in the network. NONE shows the color assigned to routers with no OSPF area configured.

As noted in Figure 5, routers with OSPF area 0 configured appear on the topology map as red dots. Those with OSPF area 1 appear as green dots. NONE shows the color assigned to routers with no OSPF area configured.

Figure 5: OSPF Areas List

Select or deselect OSPF areas by checking or clearing the corresponding check boxes. Only selected areas are displayed in the topology map.

You can create groups of nodes by selecting nodes and using the right-click topology map functions. Nodes can also be auto-grouped using criteria that you provide. Once you have groups in your topology, the Node/Groups list in the left pane of the Topology view shows all your node groups, and lists all nodes not included in any group.

When you expand a group listing using the down arrow next to the group name, all the member nodes are listed. When you collapse a group listing using the up arrow next to the group name, only the group name appears in the list. In Figure 6, group-1 and group-2 are expanded. The nodes listed below group-2 are ungrouped.

Figure 6: Example Node/Groups List

The topology map reflects the expansion and collapse of the groups in the groups list. For an expanded group, all individual nodes are displayed in the topology map, without indication of which group they belong to. For a collapsed group, the individual node icons are collectively represented by a group icon. Hover over or click on the group icon in the map to display the group name.