Junos OS Interfaces Fundamentals ... - Juniper Networks

Junos ®
OS 12.1 Interfaces Fundamentals Configuration Guide
ge-3/0/1 {
unit 0 {
family inet {
address 200.1.1.1/24;
}
}
}
The sample output shown below for the above configuration reveals that only
ge-0/1/0.0 was assigned the same IPv4 address 200.1.1.1/24 and its link state was up,
while ge-3/0/1.0 was not assigned the IPv4 address, though its link state was up,
which means that it will be operational only when it gets a unique IPv4 address other
than 200.1.1.1/24.
show interfaces terse user@host> show interfaces terse ge*
Interface Admin Link Proto Local Remote
ge-0/1/0 up up
ge-0/1/0.0 up up inet 200.1.1.1/24
multiservice
ge-0/1/1 up down
ge-3/0/0 up down
ge-3/0/1 up up
ge-3/0/1.0 up up inet
multiservice
Configuring same IPv4 address on explicitly PPP interfaces:
[edit]
user@host# show
so-0/0/0 {
unit 0 {
family inet {
address 200.1.1.1/24;
}
}
}
so-0/0/3 {
unit 0 {
family inet {
address 200.1.1.1/24;
}
}
}
The sample output shown below for the above configuration reveals that both
so-0/0/0.0 and so-0/0/3.0 were assigned the same IPv4 address 200.1.1.1/24 and
that their link states were down, which means that to make them operational atleast
one of them will have be configured with a unique IPv4 address other than 200.1.1.1/24.
show interfaces terse user@host> show interfaces terse so*
196
Interface Admin Link Proto Local Remote
so-0/0/0 up up
so-0/0/0.0 up down inet 200.1.1.1/24
so-0/0/1 up up
so-0/0/2 up down
so-0/0/3 up up
so-0/0/3.0 up down inet 200.1.1.1/24
Copyright © 2012, Juniper Networks, Inc.