redistribution mpbgp into ospf (ce-pe) issue cause outage
We integrate a new backbone into our network, this bb is running mb bgp,it is connected to the CEs through ospf, once we integrated the new backbone to the network all of the device started to show AS 100 (this AS is using for mp bgp) . after troubleshooting we notice that ospf is carrying in one tag AS information this happened due to bgp is redistribute into ospf (CE-PE), for the CE routers (7609) this tag is not big deal but all of the Nokia devices like Border Gateway start to use the information for this tag in ospf, this cause a big outage in the network.. the question is: it is possible to filter this tag??.. and the other question is.. it is a normal behaviour.. because this is ibgp we shouldn't able to see the AS into ospf, isn't it???
Re: redistribution mpbgp into ospf (ce-pe) issue cause outage
thanks for your replay..
the think is I need that route but I don't want to see the AS information in ospf because some of the devices connected to the CE like Border Gateway start to send AS 100 to other operators... we don't need to send this AS out to the network....this AS is only for MP-BGP I want to keep it inside to the Backbone... Do you know if there is a way to filter this information contained in OSPF?? or you know other way to avoid this???. My other question is about the AS information.. do you think MP-BGP should put AS information into ospf??? for EBGP I understand because this can avoid loops but for MP-BGP (this is only for inside to the bb just for VRF routing) why I need to redistribute this inforamtion??/ I hope you can help me with this ..and thanks so much again for your help
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