Dell Force10 Z9000 Configuration Manual page 166

Note: In 8.3.11.4, the bgp bestpath as-path multipath-relax command is disabled by default, preventing
BGP from load-balancing a learned route across two or more eBGP peers. To enable load-balancing across
Syste
different eBGP peers, enable the bgp bestpath as-path multipath-relax command.
A system error will result if the bgp bestpath as-path ignore command and the bgp bestpath as-path
multipath-relax command are configured at the same time. Only enable one command at a time.
Figure 8-4
illustration details the path selection criteria.
Figure 8-4. BGP Best Path Selection
| Border Gateway Protocol
166
illustrates the decisions BGP goes through to select the best path. The list following the