Monitoring Routing Information
Purpose
Use the monitoring functionality to view inet.0 routing table.
Action
To view the routing tables in the J-Web interface, select Monitor>Routing>Static Routing
To view the routings table in the CLI, enter the following commands
in the CLI interface:
-
show route terse
-
show route detail
Meaning
Table 1 summarizes key output fields in the routing information display.
Table 1: Summary of Key Routing
Information Output Fields
|
Field
|
Values
|
Additional Information
|
|
n destinations
|
Number of destinations for which there are
routes in the routing table.
| |
|
n routes
|
Number of routes in the routing table:
-
active—Number of routes that are active.
-
hold down—Number of routes that are in
hold-down state (neither advertised nor updated) before being declared
inactive.
-
hidden—Number of routes not used because
of routing policies configured on the switching platform.
| |
|
Destination
|
Destination address of the route.
| |
|
Protocol/ Preference
|
Protocol from which the route was learned: Static, Direct, Local, or the name of a particular
protocol.
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 known.
| |
|
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:
- I — IGP.
- E — EGP.
- ? — Incomplete. Typically, the AS path was aggregated.
| |
