Juniper J-Series - Monitoring BGP Routing Information

Table 52: Summary of Key Routing Information Output Fields (continued)
Additional InformationValuesField
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).
Network layer address of the directly reachable
neighboring system (if applicable) and the interface
used to reach it.
Next-Hop
How long the route has been known.Age
There are many possible flags. For a complete
description, see the JUNOS Interfaces Command
Reference.
Flags for this route.State
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.
AS Path
Monitoring BGP Routing Information
To view BGP routing information, select Monitor>Routing>BGP Information, or
enter the following CLI commands:
■
show bgp summary
■
show bgp neighbor
Table 53 on page 117 summarizes key output fields in the BGP routing display.
Table 53: Summary of Key BGP Routing Output Fields
Additional InformationValuesField
BGP Summary
Number of BGP groups.Groups
Number of BGP peers.Peers
Using the Monitoring Tools ■ 117
Chapter 7: Monitoring the Router and Routing Operations