Supported Platforms
Monitoring Routing Information
Purpose
Use the monitoring functionality to view the inet.0 routing table on the routing device.
Action
To view the routing tables in the J-Web interface, select Monitor > Routing > Route Information. Apply a filter or a combination of filters to view messages. You can use filters to display relevant events.
To view the routing table in the CLI, enter the following commands in the CLI interface:
- show route terse
- show route detail
Meaning
Table 1 describes the different filters, their functions, and the associated actions.
Table 2 summarizes key output fields in the routing information display.
Table 1: Filtering Route Messages
Field | Function | Your Action |
|---|---|---|
Destination Address | Specifies the destination address of the route. | Enter the destination address. |
Protocol | Specifies the protocol from which the route was learned. | Enter the protocol name. |
Next hop address | Specifies the network layer address of the directly reachable neighboring system (if applicable) and the interface used to reach it. | Enter the next hop address. |
Receive protocol | Specifies the dynamic routing protocol using which the routing information was received through a particular neighbor. | Enter the routing protocol. |
Best route | Specifies only the best route available. | Select the view details of the best route. |
Inactive routes | Specifies the inactive routes. | Select the view details of inactive routes. |
Exact route | Specifies the exact route. | Select the view details of the exact route. |
Hidden routes | Specifies the hidden routes. | Select the view details of hidden routes. |
Search | Applies the specified filter and displays the matching messages. | To apply the filter and display messages, click Search. |
Table 2: Summary of Key Routing Information Output Fields
Field | Values | Additional Information |
|---|---|---|
Static Route Addresses | The list of static route addresses. | |
Protocol | Protocol from which the route was learned: Static, Direct, Local, or the name of a particular protocol. | |
Preference | The preference is the individual preference value for the route. | The route preference is used as one of the route selection criteria. |
Next-Hop | Network layer address of the directly reachable neighboring system (if applicable) and the interface used to reach it. | If a next hop is listed as Discard, all traffic with that destination address is discarded rather than routed. This value generally means that the route is a static route for which the discard attribute has been set. If a next hop is listed as Reject, all traffic with that destination address is rejected. This value generally means that the address is unreachable. For example, if the address is a configured interface address and the interface is unavailable, traffic bound for that address is rejected. If a next hop is listed as Local, the destination is an address on the host (either the loopback address or Ethernet management port 0 address, for example). |
Age | How long the route has been active. | |
State | Flags for this route. | There are many possible flags. |
AS Path | AS path through which the route was learned. The letters of the AS path indicate the path origin:
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