Dasan V8102, Руководство пользователя

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UMN:CLI
User Manual
V8102
606
Command Mode Description
bgp bestpath as-path ignore
Router
Ignores the information of AS-path as a factor in the
algorithm for choosing the best route.
no bgp bestpath as-path ignore
Considers the information of AS-path as a factor in the
algorithm for choosing the best route.
If you would like to configure to select the best route by considering AS-path length of
Confederation, you should configure the router first to ignore AS-path for choosing the
best route using the
bgp bestpath as-path ignore command before implementing the
following command.
To consider AS-path length of Confederation during the best-path selection process, use
the following command.
Command Mode Description
bgp bestpath compare-confed-
aspath
Router
Considers the information of AS-path length of confed-
eration as a factor in the algorithm for choosing the best
route.
no bgp bestpath compare-
confed-aspath
Ignores AS-path length of confederation as a factor in
the algorithm for choosing the best route.
When comparing similar routes from more than 2 peers the BGP router does not consider
router ID of the routes. It selects the first received route. The V8102 uses router ID in the
selection process; similar routes are compared and the route with lowest router ID is se-
lected as the best route. Router ID can be manually set by using the following command.
To select the best path by comparing router ID, use the following command. However, the
default condition is that BGP receives routes with identical eBGP paths from eBGP peers.
Command Mode Description
bgp bestpath compare-routerid
Router
Selects the best path using the router ID for identical
eBGP paths.
no bgp bestpath compare-
routerid
Disables selecting the best path using the router ID.
The V8102 is basically configured not to compare MED values of the path information
that exchanges between the Confederation Peers. But just in case, it can be configured to
compare MED values of the path information that exchanges between Confederation
Peers.
To compare MED values on the exchange of path information between Confederation
Peers, use the following command.
Command Mode Description
bgp bestpath med confed [ miss-
ing-as-worst ]
Router
Configures the router to consider the MED in choosing
a path from among the paths on the exchange of in-
formation between confederation peers.
bgp bestpath med missing-as-
worst [ confed ]
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