Cisco IOS 12.0 Switching Services

Traffic Engineering

This section describes two sample cases supported by traffic engineering. These cases show how you can engineer traffic across a path in the network and establish a backup route for that traffic engineered path (see Table 10-2).

In both cases, the assumption is made that traffic from R1 and R2 (in Figure 10-2), which is intended for R11, would be directed by Layer 3 routing along the "upper" path R3-R4-R7-R10-R11.

Table 10-2. Sample Traffic Engineering Cases

This case	Describes
Case 1—Engineer traffic across a path	The steps necessary to engineer traffic across the "middle" path R3-R5-R8 (see Figure 10-2).
Case 2—Establish a backup path	The steps necessary for establishing a backup traffic engineering route for the engineered ...