Learning for JNCIA

Type of interfaces: Permanent interfaces : management and operations management: ex fxp0 OOB user access ( SSH, telent operational: ex fxp1 connects RE with PFE used by routing protocols pkts  and forward table updates Transient interfaces -are located on a PIC ( Physical Interface Card ) which is located on a FPC ( Flexible PIC Concentrator ) Interface naming :  media_type-fpc/pic/port.unit Interface has: physical properties + logical properties     Physical properties: description,encapsulation, MTU etc.     Logical properties ~ units units start from 0, some interface types can have only a logical unit ( ex: loopback) definition: needs to have a family: (inet, inet6, iso, mpls) protocol address: inet can have more protocol addresses Interface Primary address : lowest IP configured, used for sending traffic when destination address is not local Interface Preferred address : when an  interface has 2 addresses in the same subnet you...