migrating to MPLS

[cisco]

Hi

my office have 6 remote sites and one HQ.We are planning to move to MPLS .On each site can i have  MPLS links from two different SP. One SP_A will act as primary and other SP_B as standby . I have few doubts

1) Is it a workable solution ? if yes
2) then lets suppose if on one remote site, SP_A link goes down and now SP_B link is active, will that site can still reach the other sites which are still running SP_A link as active ?
3) What all protocol can  i run between my router and SP's router ?

regards
neo

[Giuseppe Larosa]

Hello Neo,

1)yes

2) yes going via HQ or using SP-B links depending on implementation details

3) typical used protocol is eBGP you can use local preference or weight to choice SP A routes over SP B routes in all sites

Hope to help

Giuseppe

[cisco]

Hi Giuseppe,

                      Thanks for the answers. About the 2) answer. I can conclude that the site where SP_B's link is active (when SP_A link is down ) it can't talk to other remote sites via SP_A's MPLS cloud.

thanks

neo

[Yasir Ashfaque]

Yes, if the link goes down, your traffic will shift to SP-B in Duplex.

[cisco]

Hi ,

        What i mean to ask is " at one site's SP_A link is down and now data packet is going via SP_B link into MPLS cloud of SP_B. Now it can only reach to destination via the SP_B link of destination not link of SP_A" right ?

regards

Neo

[Yasir Ashfaque · Accepted solution]

Yes, thats what i meant by Duplex