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101

532 Multi-Service IronWare Routing Configuration Guide

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Displaying BGP4+ information

AS_PATH:

Table 100 describes the output parameters of the show ipv6 /jointfilesconvert/1441120/bgp routes command.

Syntax: show ipv6 /jointfilesconvert/1441120/bgp routes [ipv6-prefix/prefix-length | table-entry-number | age seconds |

TABLE 100 Output parameters of the show ipv6 /jointfilesconvert/1441120/bgp routes command

Field Description

Number of BGP4+ Routes 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 For normal IPv6 routes, next hop is the next hop IPv6 router to reach the

destination. For the 6PE routes, next hop is the IPv4-mapped IPv6 address of

the peer 6PE router.

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 advertised 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 device associates with routes from a specific neighbor. For

example, if the receives routes to the same destination from two BGP4+

neighbors, the prefers the route from the neighbor with the larger weight.

Status The route’s status, which can be one or more of the following:

• A – AGGREGATE. The route is an aggregate route for multiple networks.

• B – BEST. BGP4+ has determined that this is the optimal route to the

destination.

• b – NOT-INSTALLED-BEST – BGP4+ has determined that this is the

optimal route to the destination but did not install it in the IPv6 route table

because the device received better routes from other sources (such as

OSPFv3, RIPng, or static IPv6 routes).

• C – CONFED_EBGP. The route was learned from a neighbor in the same

confederation and AS, but in a different sub-AS within the confederation.

• D – DAMPED. This route has been dampened (by the route dampening

feature), and is currently unusable.

• E – EBGP. The route was learned through a in another AS.

• H – HISTORY. Route dampening is configured for this route, and the route

has a history of flapping and is unreachable now.

• I – IBGP. The route was learned through a in the same AS.

• L – LOCAL. The route originated on this.

• M – MULTIPATH. BGP4+ load sharing is enabled and this route was

selected as one of the best ones to the destination. The best route among

the multiple paths also is marked with “B”.

NOTE: If the “m” is shown in lowercase, the software was not able to install

the route in the IPv6 route table.

• S – SUPPRESSED. This route was suppressed during aggregation and

thus is not advertised to neighbors.

AS-PATH The AS-path information for the route.

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