Cisco Cisco ASA 5505 Adaptive Security Appliance 중요 안전 수칙
Packet dropped counter in the show interface
command output
command output
Document ID: 113680
Contributed by Brendan Quinn, Cisco TAC Engineer.
Aug 31, 2012
Aug 31, 2012
Contents
Introduction
I see the packets dropped counter in the show interface command output increasing. How do I troubleshoot
what causes this counter to increment?
Related Information
what causes this counter to increment?
Related Information
Introduction
This document provides information why the packets dropped counter in the show interface command output
increases.
increases.
Refer to Cisco Technical Tips Conventions for more information on document conventions.
Q. I see the packets dropped counter in the show interface command
output increasing. How do I troubleshoot what causes this counter to
increment?
output increasing. How do I troubleshoot what causes this counter to
increment?
A. The packets dropped counter in the show interface command output from the Adaptive
Security Appliance (ASA) represents all dropped packets on the interface. This counter
includes all security related packet drops. It is expected that this counter will always
increment on a production ASA. Again, it is normal and expected for the packet dropped
counter to increase on a regular basis.
Security Appliance (ASA) represents all dropped packets on the interface. This counter
includes all security related packet drops. It is expected that this counter will always
increment on a production ASA. Again, it is normal and expected for the packet dropped
counter to increase on a regular basis.
ciscoasa(config)# show interface ethernet 0/0
Interface Ethernet0/0 "outside", is up, line protocol is up
Hardware is i82546GB rev03, BW 100 Mbps, DLY 100 usec
Auto−Duplex(Full−duplex), Auto−Speed(100 Mbps)
Input flow control is unsupported, output flow control is off
MAC address 001b.d454.c092, MTU 1500
IP address 10.36.109.93, subnet mask 255.255.0.0
23990802 packets input, 1619288894 bytes, 0 no buffer
Received 22034675 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 pause input, 0 resume input
58006 L2 decode drops
912400 packets output, 58393600 bytes, 0 underruns
0 pause output, 0 resume output
0 output errors, 0 collisions, 25 interface resets
0 late collisions, 0 deferred
40 input reset drops, 0 output reset drops, 0 tx hangs
input queue (blocks free curr/low): hardware (255/241)
output queue (blocks free curr/low): hardware (255/253)
Traffic Statistics for "outside":
23932752 packets input, 1184782039 bytes
912408 packets output, 25547424 bytes
1785822 packets dropped