Cisco Cisco IOS Software Release 12.4(4)T
1088
Caveats for Cisco IOS Release 12.4T
OL-8003-09 Rev. Z0
Resolved Caveats—Cisco IOS Release 12.4(9)T5
Resolved Caveats—Cisco IOS Release 12.4(9)T5
Cisco IOS Release 12.4(9)T5 is a rebuild release for Cisco IOS Release 12.4(9)T. The caveats in this
section are resolved in Cisco IOS Release 12.4(9)T5 but may be open in previous Cisco IOS releases.
section are resolved in Cisco IOS Release 12.4(9)T5 but may be open in previous Cisco IOS releases.
The following information is provided for each caveat:
•
Symptoms—A description of what is observed when the caveat occurs.
•
Conditions—The conditions under which the caveat has been known to occur.
•
Workaround—Solutions, if available, to counteract the caveat.
Basic System Services
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CSCsf32390
Symptoms: When tuning particle clone, F/S, and header pools after these were made configurable
via CSCuk47328, the commands may be lost on a reload.
via CSCuk47328, the commands may be lost on a reload.
Conditions: If the device is reloaded the commands are not parsed on a reload and this results in the
defaults being active. This may result in traffic loss if the increased buffers were needed to enable
greater forwarding performance for the specific network design.
defaults being active. This may result in traffic loss if the increased buffers were needed to enable
greater forwarding performance for the specific network design.
Workaround: Configure an applet to enter the buffer values again after a reload. A sample applet
would be:
would be:
event manager applet add-buffer
event syslog occurs 1 pattern ".*%SYS-5-RESTART: System restarted --.*"
action 1.0 cli command "enable"
action 2.0 cli command "configure terminal"
action 3.0 cli command "buffers particle-clone 16384"
action 4.0 cli command "buffers header 4096"
action 5.0 cli command "buffers fastswitching 8192"
action 6.0 syslog msg "Reinstated buffers command"
•
CSCsg05378
Symptoms: A router may hand or crash because of memory corruption when HTTP is being
accessed.
accessed.
Conditions: This symptom is observed on a Cisco router when IPS is enabled. Other conditions may
trigger the symptom too.
trigger the symptom too.
Workaround: When IPS triggers the symptom, disable IPS.
•
CSCsi13312
Symptoms: Authentication with Security Device Manager (SDM) 2.3.3 fails, preventing you from
logging into the router through HTTPS, HTTP, SSH, Telnet, console, or any management
application.
logging into the router through HTTPS, HTTP, SSH, Telnet, console, or any management
application.
Conditions:This symptom is observed on a Cisco router that is “fresh out of the box” and affects the
following routers:
following routers:
–
Cisco 800 series
–
Cisco 1700 series
–
Cisco 1800 series
–
Cisco 2700 series
–
Cisco 2800 series