Tuesday, January 13, 2009

Which Labels Cisco Router Advertise To Its Neighbors

By default on cisco router labels are generated for each and every route. So when you use the command “mpls ldp advertise-label” it means it will advertise all the labels to its adjacent neighbours. But in actual neighbours require only the labels for loopbacks which are being used for MP-BGP. So there is no requirement to advertise all the labels. For saving the overhead we can advertise the labels only for the loopback addresses by using an acl “mpls ldp advertise-label for mpls_acl”.

shivlu jain

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