routing - Why does GRE tunnel has lesser TxBS/RxBS than its physical interface?
routing – Why does GRE tunnel has lesser TxBS/RxBS than its physical interface?
Given for instance, interface Tunnel200 tunnel destination 110.153.1.1 There’s a static route for 110.153.1.1, pointing to physical interface Gi0/0. Gi0/0 is only used for tunnel200. Under show interface summary, the TxBS/RxBS of tunnel200 is always slightly lower than the physical interface Gi0/0. Shouldn’t it be the other way round as there is overhead for the GRE tunnel? Source link
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