Default Med - 3Com 8807 Command Reference Manual

710 C 40: BGP/MPLS VPN C C
HAPTER ONFIGURATION OMMANDS
View
VPNv4 sub-address family view
Parameter
value: Value of the local precedence, ranging from 0 to 4294967295. A greater
value enjoys higher precedence. The default local precedence is 100.
Description
Use the default local-preference command to configure the local precedence
for BGP routing in VPN.
Use the undo default local-preference command to restore the default
configuration.
The value of the local precedence is advertised between IBGP peers and you can
affect the BGP routing in VPN by changing the precedence.
Example
# Set the local precedence to be 180, so that the system-advertised routing
information will be preferred.
[3Com-bgp-af-vpn] default local-preference 180

default med

Syntax
default med med-value
undo default med
View
VPNv4 sub-address family view, VPN-instance sub-address family view
Parameter
med-value: MED value, ranging from 0 to 4294967295. The default value is 0.
Description
Use the default med command to configure the MED value of the system.
Use the undo default med command to restore the default value.
MED attributes, switched between autonomous system (AS), is an external
measurement for routes and does not leave AS once entering it. The route with
smaller MED value will be selected as the external one for AS when other
conditions hold.
Example
# The routers RTA and RTB belong to AS100 and the router RTC belongs to
AS200. RTC associates with RTA and RTB. Set the MED value of RTA 25. This
makes the RTC prefer the route sent by RTB.
[3Com-bgp-af-vpn-instance] default med 25