R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

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Parameters
value: Default local preference, in the range 0 to 4294967295. The larger the value is, the higher the
preference is.
Description
Use the default local-preference command to configure the default local preference.
Use the undo default local-preference command to restore the default value.
By default, the default local preference is 100.
Using this command can affect BGP route selection.
Examples
# In BGP view, set the default local preference to 180.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] default local-preference 180
# In BGP-VPN instance view, set the default local preference to 180 (the VPN has been created).
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv4-family vpn-instance vpn1
[Sysname-bgp-vpn1] default local-preference 180
default med (BGP/BGP-VPN instance view)
Syntax
default med med-value
undo default med
View
BGP view, BGP-VPN instance view
Default level
2: System level
Parameters
med-value: Default MED value, in the range 0 to 4294967295.
Description
Use the default med command to specify a default MED value.
Use the undo default med command to restore the default.
By default, the default med-value is 0.
Multi-exit discriminator (MED) is an external metric for routes. Different from local preference, MED is
exchanged between ASs and will stay in the AS once it enters the AS. The route with a lower MED is
preferred. When a router running BGP obtains several routes with an identical destination but different
next-hops from various external peers, it will select the best route depending on the MED value. In the
case that all other conditions are the same, the system first selects the route with the smallest MED as the
best external route.