BGP Routing Policies - Configuring BGP Policies - Step 3: Highest Local Preference (LOCAL_PREF)

8 important questions on BGP Routing Policies - Configuring BGP Policies - Step 3: Highest Local Preference (LOCAL_PREF)

What is the command to set LOCAL_PREF?

route-map higher-local-pref permit 10
match ip address 11

route-map higher-local-pref permit 20 (to permit any routes not specified in clause 10)




access-list 11 permit 11.0.0.0


router bgp 123
neighbor x.x.x.x route-map higher-local-pref
match ip address 11
set local-preference 200

What PA is the LOCAL_PREF?

Well-known discretionary

What is the purpose for LOCAL_PREF?

Identifies the best exit point from the AS to reach the NLRI
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What is the scope for LOCAL_PREF?

Throughout the AS in which it was set, including confederation sunASs

What is the default value for LOCAL_PREF?

100

What is the range for LOCAL_PREF?

0 through (2 32 -1)

What is the command to change the default for LOCAL_PREF?

(config-router)#bgp default local-preference <0-4294967295>

What value is better for LOCAL_PREF?

Higher values are better

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