Default Med (Bgp/Bgp-Vpn Instance View); Default-Route Imported (Bgp/Bgp-Vpn Instance View) - HP FlexNetwork 3600 v2 Series Command Reference Manual

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 of 0 to 4294967295.
Description
Use default med to specify a default MED value.
Use undo default med 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-ipv4-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
Default level
2: System level
Parameters
None
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