The Routing Table provides a contextual view of routing behavior, allowing you to monitor not just protocol‑level route information but also the operational details that influence how traffic is forwarded in your network. You can view core routing attributes, such as destination networks, next‑hop IPs, route sources, and protocol metrics. Each route includes additional context to help you understand how the route is being used and how stable it is.

With the Routing Table, you can monitor:

• The forwarding interface for each route — including the interface name and operational state, showing exactly which interface is responsible for forwarding traffic for that prefix.

• The VRF associated with the route — helping you see which tenant, service, or routing domain the route belongs to, and whether an issue affects a specific segment of your network.

• The relationship between the route and its next hop — including correlation with monitored nodes and routing peers, and insight into whether the next hop is stable or exhibiting flapping behavior.

• How recently a route has changed — using last‑changed timestamps to identify unstable routes or those that may require closer attention.

Refer to the sections below to view routing data and adjust polling behavior.

Access the Routing table

If you have a SolarWinds Observability Self-Hosted license, you can access the Network Insights dashboard. In SolarWinds Observability, click My Dashboards > Routing Insights.

If the data is incomplete, follow banner links to open a report with a list of devices with incomplete data or adjust advanced polling settings to address the issue.

Routing table size limit

Routing tables can be large. Polling large SNMP tables may cause SNMP timeout errors.

• By default, polling is limited to the first 1000 routes and 200 rows for VRF routing tables.
• You can change this limit in Advanced Configuration under NPM.Pollers.Routing.

Routing table pollers

For polling routing table details, several pollers are available. You can select a poller when adding a node or by using List Resources.

These pollers collect routing table data without a VRF specified. In the widgets, data retrieved using these pollers is displayed when you select Main in the drop-down.

Poller name	MIBs	OID required
N.Routing.SNMP.Ipv4RoutingTable	RFC1213-MIB, IP-MIB	1.3.6.1.2.1.4.1
N.Routing.SNMP.Ipv6RoutingTable	RFC1213-MIB, IPV6-MIB	1.3.6.1.2.1.55.1.9
N.Routing.SNMP.CidrRoutingTable	IP-FORWARD-MIB	1.3.6.1.2.1.4.24.4.1
N.Routing.SNMP.InetCidrRoutingTable	IP-FORWARD-MIB	1.3.6.1.2.1.4.24.7.1

Select pollers for polling routing data

Select appropriate pollers when adding the node. If a node is already monitored, list resources and select appropriate pollers.

1. In SolarWinds Platform Web Console, go to the node details view.

2. In the Management widget, click List Resources.

3. Select what routing information you want to poll:

   

4. Submit your changes.

Customize polling intervals for routing

You can customize global polling intervals for routing in Polling Settings.

1. In SolarWinds Platform Web Console, click Settings > All Settings.

2. Click Polling Settings in the Thresholds & Polling Settings.

3. Scroll down to the Routing Polling section.

4. Customize polling intervals for polling neighbors, routing table, and VRF.

5. Submit your changes.