Cisco Catalyst 2960-XR Configuration Manual page 155

Configuring Link-State Tracking
The configuration in this figure ensures that the network traffic flow is balanced.
Figure 24: Typical Link-State Tracking Configuration
• For links to switches and other network devices
• Link-state group 1 on switch A
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◦ Server 1 and server 2 use switch A for primary links and switch B for secondary links.
◦ Server 3 and server 4 use switch B for primary links and switch A for secondary links.
◦ Switch A provides primary links to server 1 and server 2 through link-state group 1. Port 1 is
connected to server 1, and port 2 is connected to server 2. Port 1 and port 2 are the downstream
interfaces in link-state group 1.
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
Understanding Link-State Tracking
141