9-2
Reply packet: 0
Unknown packet: 0
TTL invalid packet number: 0
ICMP packet input number: 0
Echo reply: 0
Unreachable: 0
Source quench: 0
Routing redirect: 0
Echo request: 0
Router advert: 0
Router solicit: 0
Time exceed: 0
IP header bad: 0
Timestamp request: 0
Timestamp reply: 0
Information request: 0
Information reply: 0
Netmask request: 0
Netmask reply: 0
Unknown type: 0
Table 9-1 display ip interface command output description
Field Description
current state
Current physical state of an interface, which can be
z Administrative DOWN: Indicates that the interface is
administratively down; that is, the interface is shut down with the
shutdown command.
z DOWN: Indicates that the interface is administratively up but its
physical state is down, which may be caused by a connection or
link failure.
z UP: Indicates that both the administrative and physical states of the
interface are up.
Line protocol current state
Current state of the link layer protocol, which can be
z DOWN: Indicates that the protocol state of the interface is down,
which is usually because that no IP address is assigned to the
interface.
z UP: Indicates that the protocol state of the interface is up.
Internet Address
IP address of an interface followed by:
z Primary: Identifies a primary IP address, or
z Sub: Identifies a secondary IP address.
Broadcast address Broadcast address of the subnet attached to an interface
The Maximum Transmit Unit Maximum transmission units on an interface, in bytes
input packets, bytes, multicasts
output packets, bytes, multicasts
Unicast packets, bytes, and multicast packets received on an interface
(the statistics start at the AP startup)
ARP packet input number:
Request packet:
Reply packet:
Unknown packet:
Total number of ARP packets received on the interface (the statistics
start at the AP startup), including
z ARP request packets
z ARP reply packets
z Unknown packets
TTL invalid packet number
Number of TTL-invalid packets received on the interface (the statistics
start at the AP startup)
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