CHAPTER 5
Implementing High Availability
In Figure 5-4 the access switches are L3. This gives the faster convergence and is easiest to implement. All links between
switches are L3. There is no need for HSRP, although STP should still be enabled in case of a misconfiguration. Access
switches can load balance traffic across both uplinks. The access switches either run a routing protocol or use static
routes. The distribution switches summarize routes for the access VLANs.
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CCNP SWITCH 642-813 Quick Reference by Denise Donohue
FIGURE 5-3
Layer 2 Access
Switches with Local
VLANs
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