Filter
Top Products
963
View BGP view/BGP-VPN instance view
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.
Examples # In BGP view, configure the default MED as 25.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] default med 25
# In BGP-VPN instance view, configure the default MED as 25 (the VPN has been
created).
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv4-family vpn-instance vpn1
[Sysname-bgp-vpn1] default med 25
default-route imported (BGP/BGP-VPN instance view)
Syntax default-route imported
undo default-route imported
View BGP view/BGP-VPN instance view
Parameters None
Description Use the
default-route imported command to allow default route redistribution
into the BGP routing table.
Use the
undo default-route imported command to disallow the redistribution.
By default, default route redistribution is not allowed.
Using the default-route imported command cannot redistribute default routes.
To do so, use the import-route command.