Figure 1 shows the two networks to provide HA for business traffic.
|LIC topology: complex
topology: traffic separation
|1. HA||2. extra network for
Not all traffic contains business information. Administrative communication, such as backups, support team access and health checks, creates a lot of traffic. This traffic must not be allowed to clog the business networks. Customer service should not suffer because of administrative traffic.
Administrative traffic is kept seperate from business traffic by adding a third data network to the LIC, named adm01.
Adding an administrative network to the LIC means three sets of network hardware: two for the HA network and one for administration. The network topography contains three set of cables, ethernet switches and sets of NICs.
Figure 2 shows more magic black lines. Administration traffic is kept seperate from business traffic. It goes down different cables, through a different switch and through a different firewall.