Setup Guide

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* i 3.0.0.0/8 195.171.0.16 100 0 209 701 80 i
*>i 4.2.49.12/30 195.171.0.16 100 0 209 i
* i 4.21.132.0/23 195.171.0.16 100 0 209 6461 16422 i
*>i 4.24.118.16/30 195.171.0.16 100 0 209 i
*>i 4.24.145.0/30 195.171.0.16 100 0 209 i
*>i 4.24.187.12/30 195.171.0.16 100 0 209 i
*>i 4.24.202.0/30 195.171.0.16 100 0 209 i
*>i 4.25.88.0/30 195.171.0.16 100 0 209 3561 3908 i
*>i 6.1.0.0/16 195.171.0.16 100 0 209 7170 1455 i
*>i 6.2.0.0/22 195.171.0.16 100 0 209 7170 1455 i
*>i 6.3.0.0/18 195.171.0.16 100 0 209 7170 1455 i
*>i 6.4.0.0/16 195.171.0.16 100 0 209 7170 1455 i
*>i 6.5.0.0/19 195.171.0.16 100 0 209 7170 1455 i
*>i 6.8.0.0/20 195.171.0.16 100 0 209 7170 1455 i
*>i 6.9.0.0/20 195.171.0.16 100 0 209 7170 1455 i
*>i 6.10.0.0/15 195.171.0.16 100 0 209 7170 1455 i
*>i 6.14.0.0/15 205.171.0.16 100 0 209 7170 1455 i
*>i 6.133.0.0/21 205.171.0.16 100 0 209 7170 1455 i
*>i 6.151.0.0/16 205.171.0.16 100 0 209 7170 1455 i
--More--
Changing the LOCAL_PREFERENCE Attribute
In Dell EMC Networking OS, you can change the value of the LOCAL_PREFERENCE attribute, so that the preferred path can be changed.
To change the default values of this attribute for all routes received by the router, use the following command.
• Change the LOCAL_PREF value.
CONFIG-ROUTER-BGP mode
bgp default local-preference value
value: the range is from 0 to 4294967295. The default is 100.
Example conguration of changing the LOCAL_PREFERENCE attribute
DellEMC# configure terminal
DellEMC(conf)# router bgp 400
DellEMC(conf_router_bgp)# neighbor 10.10.10.1 remote-as 500
DellEMC(conf_router_bgp)# bgp default local-preference 150
DellEMC(conf_router_bgp)# exit
In the above example conguration, the default LOCAL_PREFERENCE value is changed to 150 for all the updates from AS 500 to AS 400.
The default value is 100.
To view the BGP conguration, use the show config command in CONFIGURATION ROUTER BGP mode or the show running-
config bgp command in EXEC Privilege mode.
Manipulating the LOCAL_PREFERENCE attribute
A more exible method for manipulating the LOCAL_PREFERENCE attribute value is to use a route-map.
To change the usage of LOCAL_PREFERENCE attribute to choose the best path among the advertised, enter any or all of the following
commands.
1 Enter the ROUTE-MAP mode and assign a name to a route-map.
CONFIGURATION mode
route-map map-name [permit | deny] [sequence-number]
2 Change LOCAL_PREF value for routes meeting the criteria of this route-map.
Border Gateway Protocol (BGP)
201