Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 User Manual

Page 400

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382

Brocade ICX 6650 Layer 3 Routing Configuration Guide

53-1002603-01

Displaying BGP4 information

Syntax: show ip bgp routes best

For information about the fields in this display, refer to

Table 69

on page 383. The fields in this

display also appear in the show ip bgp display.

Displaying the best BGP4 routes that are not in the IP route table

When the Layer 3 switch has multiple routes to a destination from different sources (such as BGP4,
OSPF, RIP, or static routes), the Layer 3 switch selects the route with the lowest administrative
distance as the best route, and installs that route in the IP route table.

To display the BGP4 routes that are the “best” routes to their destinations but are not installed in
the Layer 3 switch IP route table, enter a command such as the following at any level of the CLI.

Each of the displayed routes is a valid path to its destination, but the Layer 3 switch received
another path from a different source (such as OSPF, RIP, or a static route) that has a lower
administrative distance. The Layer 3 switch always selects the path with the lowest administrative
distance to install in the IP route table.

Notice that the route status in this example is the new status, “b”. Refer to

Table 69

on page 383

for a description.

Syntax: show ip bgp routes not-installed-best

For information about the fields in this display, refer to

Table 69

on page 383. The fields in this

display also appear in the show ip bgp display.

NOTE

To display the routes that the Layer 3 switch has selected as the best routes and installed in the IP
route table, display the IP route table using the show ip route command.

Displaying BGP4 routes whose destinations are unreachable

To display BGP4 routes whose destinations are unreachable using any of the BGP4 paths in the
BGP4 route table, enter a command such as the following at any level of the CLI.

Syntax: show ip bgp routes unreachable

For information about the fields in this display, refer to

Table 69

on page 383. The fields in this

display also appear in the show ip bgp display.

Brocade#show ip bgp routes not-installed-best

Searching for matching routes, use ^C to quit...

Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED

E:EBGP H:HISTORY I:IBGP L:LOCAL M:MULTIPATH S:SUPPRESSED F:FILTERED

Prefix Next Hop Metric LocPrf Weight Status

1 192.168.4.0/24 192.168.4.106 0 100 0 bE

AS_PATH: 65001

Brocade#show ip bgp routes unreachable

Searching for matching routes, use ^C to quit...

Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED

H:HISTORY I:IBGP L:LOCAL M:MULTIPATH S:SUPPRESSED

Prefix Next Hop

Metric

LocPrf

Weight Status

1

10.8.8.0/24 192.168.5.1

0

101

0

AS_PATH: 65001 4355 1

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