I'm a network administrator for an ISP. We are a dual homed BGP shop. We have, in general around 250 Mbps of traffic on each link (2 7206-G2 routers). The problem is, when one link goes down the traffic wouldn't rebalance correctly. We'd end up with about 400 and 100. In order to rebalance it we'd need to reboot the router that was missing traffic, and once it was up, reboot the other router. We've actually moved all of our traffic to the G2 cards from the front cards, which may have fixed the issue. We won't know until we have an outage though.
The main thing I want to know, is there a BGP command that would effect how traffic is balanced after reestablishing the inter link?
Here's my config, minus network statements and changed numbers to protect the innocent. 18.104.22.168 would be the inter link, 22.214.171.124 would be the other ISP
router bgp 12345
! network entries
neighbor 126.96.36.199 remote-as 12345
neighbor 188.8.131.52 ebgp-multihop 3
neighbor 184.108.40.206 update-source Loopback0
neighbor 220.127.116.11 next-hop-self
neighbor 18.104.22.168 soft-reconfiguration inbound
neighbor 22.214.171.124 remote-as 4321
neighbor 126.96.36.199 password 7 00031E0C055800031B32
neighbor 188.8.131.52 next-hop-self
neighbor 184.108.40.206 soft-reconfiguration inbound
neighbor 220.127.116.11 route-map MAP out