DELL S50V User Manual

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Border Gateway Protocol IPv4 (BGPv4)

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Use any or all of the following commands in the CONFIGURATION ROUTER BGP mode to change how 
the MED attribute is used.

Use the 

 command in the CONFIGURATION ROUTER BGP mode to view the nondefault 

values. 

Change LOCAL_PREFERENCE attribute

In FTOS, you can change the value of the LOCAL_PREFERENCE attribute. 

Use the following command in the CONFIGURATION ROUTER BGP mode to change the default values 
of this attribute for all routes received by the router.

Use the 

 command in CONFIGURATION ROUTER BGP mode or the 

 command in EXEC Privilege mode to view BGP configuration.

A more flexible method for manipulating the LOCAL_PREF attribute value is to use a route map.

Use these commands in the following sequence, starting CONFIGURATION mode to change the default 
value of the LOCAL_PREF attribute for specific routes.

CONFIG-ROUTER-
BGP

Enable MED comparison in the paths from neighbors 
with different ASs.
By default, this comparison is not performed.

CONFIG-ROUTER-
BGP

Change the bestpath MED selection to one of the 
following: 

: Chooses the bestpath MED comparison of 

paths learned from BGP confederations.

t: Treat a path missing an MED as 

the most preferred one

 

CONFIG-ROUTER-
BGP

Change the LOCAL_PREF value.

•

 range: 0 to 4294967295

•

Default is 100.

1

 

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CONFIGURATION 

Enter the ROUTE-MAP mode and assign a 
name to a route map.

2

 

CONFIG-ROUTE-MAP

Change LOCAL_PREF value for routes 
meeting the criteria of this route map.

3

CONFIG-ROUTE-MAP

Return to the CONFIGURATION mode.