will adding a new area (in this case, NSSA totally stub) cause a reconvergance in Area 0?
This depends on what you understand under reconvergence. Adding the new area should not cause any transient connectivity outages in the backbone area. It will nevertheless cause something IS-IS would call "Partial Route Calculation" - a less intensive reconvergence which is based on the fact that the prefixes from the new NSSA-TS area will be imported into the backbone as LSA-3/LSA-4/LSA-5 and routers will need to update their routing tables.
2) The stub area is to originate a smaller subnet of a network I am already advertising via Area 0
I do not entirely understand this one. Can you provide an example please?
3) I was going to add these statements to the ABR(s):
area 1 nssa default-information originate
area 1 nssa no-summary
If "area 1 nssa no-summary" is used then the "default-information-originate" shall not be used. The default route will be injected into the NSSA-TS area automatically. The "area 1 nssa default-information-originate" is used only if the area is a pure NSSA, not NSSA-TS.
Thanks for replying so quickly! Regarding your request for an example of the network to be advertised via the NSSA: In area 0 we are currently advertising a /20 and in area 1 (NSSA) we are planning to advertise a /24 from that larger subnet. Does this break the rule of advertising the same subnet from two areas?
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.