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I have a question ?when I studied CCNP , I were learned Resiliency for HA have 2 level : Network-Level Resiliency and System-Level Resiliencybut when I readed Deploying and Managing High Availability Networks, I saw Resiliency for HA have 4 level : D...
SW1-> SW2 ->R3 is VLan 10 , SW1-> SW3-> R4 is Vlan20I was use ip helper-address <r1 ip>, but it's fail ,when i remove connection F0/2 of Switch 4 and F0/1 of R4 and add ip helper-address in F0/0.10 of R2 (Vlan 10) it successfull , when i connect SW4...
