The MPLS-OPS Archive

[online <johnliu@online.sh.cn>]

Hi,
I have some practical reports in http://johnliu.chinaquest.com, as
a minor demo for Mr.Rajiv Asati's excellent explaination.
Best Regards,
Liu Jun

 

Hi For the case that customer carrier sites is pure IP .Customer carrier say CSC-CE1 is advertising internal route (/32) in site 1 tobackbone carrier CSC-PE1  using IPV4BGP label distribution . Case 1 : Those internal routes are part of the IGP and using  BGP "network" statements on CSC-CE1 to be included in the BGP table . Is CSC-CE1 advertise :1) a different label value to each internal routesOr2)"Implicit_Null" as label for all internal routes . If "1" : At CSC-CE1 what wil be the label action assigned .         is it A- "Untag"               Or               B- "Aggregate" . Case2 : Each node in Site1 will have L0 amd L1 address . L0 is known via the IGP but not L1 . Each node propagate L1 through iBGP full mesh  (all nodes in site1 run iBGP) CSC-CE1 will propagate L1's for all internal nodes to CSC-PE1 .   Same enq as case1 ,ie: CSC-CE1 behaviour as "1A" ,"1B" or "2" .  Case2 is included to see if the internal routes are  leraned through  different way (IGP or iBGP) will influenece CSC-CE1 behaviour .   I guess that all ( "1A","1B" or "2") are workable ,but "1B" is  less efficient than "2" and "1A" is better than "2" .  Iintersted to know  what the method selected by the major manufacturer .  Brgds   

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