Alcatel-Lucent 7210 SAS M Service Manual page 656

VPRN Service Configuration Commands
The no form of the command used at the global level reverts to default where BGP adds the AS
number and router ID to the aggregator path attribute.
The no form of the command used at the group level reverts to the value defined at the group level.
The no form of the command used at the neighbor level reverts to the value defined at the group level.
no aggregator-id-zero — BGP adds the AS number and router ID to the aggregator path attribute.
Default
always-compare-med
Syntax always-compare-med {zero | infinity}
no always-compare-med
Context config>service>vprn>bgp
This command specifies how the Multi-Exit Discriminator (MED) path attribute is used in the BGP
Description
route selection process. The MED attribute is always used in the route selection process regardless of
the peer AS that advertised the route. This parameter determines what MED value is inserted in the
RIB-IN. If this parameter is not configured, only the MEDs of routes that have the same peer ASs are
compared.
The no form of the command removes the parameter from the configuration.
no always-compare-med — Only compare MEDs of routes that have the same peer AS.
Default
zero — Specifies that for routes learned without a MED attribute that a zero (0) value is used in the
Parameters
infinity — Specifies for routes learned without a MED attribute that a value of infinity (4294967295)
as-path-ignore
Syntax [no] as-path-ignore
Context config>service>vprn>bgp
This command determines whether the AS path is used to determine the best BGP route.
Description
If this option is present, the AS paths of incoming routes are not used in the route selection process.
The no form of the command removes the parameter from the configuration.
no as-path-ignore
Default
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MED comparison. The routes with the lowest metric are the most preferred.
is used in the MED comparison. This in effect makes these routes the least desirable.
7210 SAS M Services Guide