Dell BigIron RX Series, Configuration Manual

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BigIron RX Series Configuration Guide 1179
53-1002253-01
Displaying BGP4+ information
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Best routes – The “best” routes to their destinations, which are installed in the switch’s IPv6
route table.
•
Unreachable – The routes whose destinations are unreachable using any of the BGP4+ paths
in the IPv6 route table.
For example, to display a summary of the best routes to a destination received from neighbor
2000:4::106, enter the following command.
Syntax: show ipv6 bgp neighbor <ipv6-address> routes best | detail [best | unreachable] |
unreachable
The <ipv6-address> parameter displays the routes for a specified neighbor. You must specify this
address in hexadecimal using 16-bit values between colons as documented in RFC 2373.
The best keyword displays the “best” routes, which are installed in the IPv6 route table.
The unreachable keyword displays the routes whose destinations are unreachable using any of the
BGP4+ paths in the IPv6 route table.
The detail keyword displays detailed information about the routes. If you do not specify this
parameter, a summary of the routes displays.
This display shows the following information:
TABLE 205
Summary of best and unreachable routes from a BGP4+ neighbor
This field... Displays...
Number of accepted routes from a
specified neighbor The number of routes displayed by the command.
Status codes A list of the characters the display uses to indicate the route’s status.
The status code appears in the Status column of the display. The status
codes are described in the command’s output.
Prefix The route’s prefix.
Next Hop The next-hop switch for reaching the route from the switch.
Metric The value of the route’s MED attribute. If the route does not have a
metric, this field is blank.
LocPrf The degree of preference for the route relative to other routes in the
local AS. When the BGP4+ algorithm compares routes on the basis of
local preferences, the route with the higher local preference is chosen.
The preference can have a value from 0 – 4294967295.
Weight The value that this switch associates with routes from a specific
neighbor. For example, if the switch receives routes to the same
destination from two BGP4+ neighbors, the switch prefers the route
from the neighbor with the larger weight.
BigIron RX# show ipv6 bgp neighbor 2000:4::106 routes best
There are 2 accepted routes from neighbor 2000:4::106
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 2002::/16 2000:4::106 1 100 0 BE
AS_PATH: 65001
2 2002:1234::/32 2000:4::106 1 100 0 BE
AS_PATH: 65001