Example C: Failed Chassis That Takes the Stack Down

Example C as presented in VSB LFR Stack Examples depicts a chassis failure that takes the entire stack down. In Example B, stack segment 5 – 8 kept its front-panel ports operational because its total LFR priority exceeded half the total LFR priority of the original stack. In this example, each surviving stack LFR priority totals 150. Since the total LFR priority of neither surviving stack segment equaled or exceeded half the total LFR priority value of the original stack (360), the front-panel ports for both stack segments are taken down.