We just migrated second link on BGP on for customer. The link is up and advrtising customer prefix to the internet and is load sharing the traffic w/ another (different) providers' link (Separate from ours). The customer thinks that the Route distribution on our link is at least 20% less than other providers'. Can anyone comment on what could happening ? I looked thro' looking glass portals and our BGP link is not preferred (Mostly). Please comment.
My initial question is does it depend on type of ISP Provider, (the other link is provided by Tier 1 ISP Provider)?