Load Balancing with Multiple T1s and cisco Routers. Load Balancing with Multiple T1s and cisco Routers. Getting two T1 lines running so they effectively add together as a 3 Mbit pipe was a study in cisco router technology.
Cisco routers use two primary methods for determining what interface to send a packet.
This reduces the processor time and moves the packet quicker through the router. Both of these methods work fine when there is only one direct path to the routes. When there are two or more parallel connections, then we encounter some problems. Let's look as the differences and some some configuration files. The router will treat these serial lines as going to the same place.