Junos OS Interfaces Command Reference - Juniper Networks

Junos OS 12.1 Interfaces Command Reference
Filters Field
Flags Fields
126
• Enabled, Physical link is Down—The interface is turned on, but the physical link is
inoperable and cannot pass packets. Manually verify the connections to bring the
physical link up.
• Enabled, Physical link is Up—The interface is turned on, and the physical link is
operational and can pass packets.
For the logical interface, the Filters field provides the name of the firewall filters to be
evaluated when packets are received or transmitted on the interface. The format is Filters:
Input: filter-name and Filters: Output: filter-name. For example:
Filters: Input: sample-all
Filters: Output: cp-ftp
The following sections provide information about flags that are specific to interfaces:
• Addresses, Flags Field on page 126
• Device Flags Field on page 127
• Family Flags Field on page 127
• Interface Flags Field on page 128
• Link Flags Field on page 129
• Logical Interface Flags Field on page 129
Addresses, Flags Field
The Addresses, Flags field provides information about the addresses configured for the
protocol family on the logical interface and displays one or more of the following values:
• Dest-route-down—The routing process detected that the link was not operational and
changed the interface routes to nonforwarding status
• Is-Default—The default address of the router used as the source address by SNMP,
ping, traceroute, and other network utilities.
• Is-Preferred—The default local address for packets originating from the local router
and sent to destinations on the subnet.
• Is-Primary—The default local address for broadcast and multicast packets originated
locally and sent out the interface.
• Preferred—This address is a candidate to become the preferred address.
• Primary—This address is a candidate to become the primary address.
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