Subject: ABOUT: MPLS-VPN, RD

From: xiaolee <[email-masked]>
Date: Mon, 12 Feb 2001 9:42:49 +0800

hello everyone,
    I just can not understand what the RD (route distinguisher) means? when we assign RDs to users, is it a good idea to use the network address assigned to the user as the RD?  Let's take the cisco MPLS-VPN as an example. we assign 1.1.1.0 mask 255.255.255.0 network address to a user, and our, that is to say the ISP's, ASN is 65412, so the RD we'll assign to the user is 

    1.1.1.0 : 65412        (network address : ASN)

    what about this method to assign RD to user? and in the cisco MPLS-VPN, what does the other format of RD mean? the format is 

    16bits integer : 32bits integer

    what does it mean and how does it use? and Juniper's JunOS MPLS-VPN what is the format of the RD?

    thank you very much!