Specifications

90
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
Caveats
• CSCdr44028
If access lists with more than 1000 lines are used on a Cisco router that has compiled access control
lists (ACLs) enabled, changes or additions to the ACLs might cause the router to exhibit a message
similar to the following:
SLOT 0:%SYS-3-CPUHOG: Task ran for 2928 msec (35/5), Process = TurboACL, PC = 4009274C
-Traceback= 40092754 401AFED4 401AFB18 401B1474 401B2E60 401B2ED8 401B2FEC 40082128
40082114
In some situations, this condition might cause a failure with process keepalive messages that results
in an undesired line protocol down state. There is no workaround.
• CSCdr46240
If the crypto key generate rsa global configuration command has been included in the
startup-config file, the router may reload during key generation when the startup-config is
processed.
Workaround: Exclude the crypto key generate rsa global configuration command from the
startup-config file, and manually configure the RSA key-pair from the console session.
• CSCdr47488
Netflow does not function properly for Engine 0-based cards on a Cisco 12000 series gigabit switch
router (GSR) that is running Cisco IOS Release 12.0(10.1)S to 12.0(10.5)S.
Workaround: Use sampled netflow.
• CSCdr48846
If a hardware error occurs on a Performance OC-48 line card where an application specific
integrated circuit (ASIC) on the line card must be reset to recover, the line card might experience
problems forwarding Multiprotocol Link Switching (MPLS) traffic. The line card will require a
microcode reload to fully recover. There is no workaround.
• CSCdr49629
When an output access control list (ACL) is used, the line card might produce some tracebacks
while running Cisco IOS Release 12.0(10.1)S to 12.0(10.5)S. This message is harmless, and the
only side-effect of this condition is that the log message will be printed. There is no workaround.
Wide-Area Networking
• CSCdr43764
Extracting 64-bit Simple Network Management Protocol (SNMP) counters for the Frame Relay
subinterface on a Packet-over-SONET (POS) interface might not work. This condition applies to
both the relevant IF-MIB counters and the Cisco-specific 2 x 32-bit counters in
CISCO-C12000-IF-HC-COUNTERS-MIB and relates only to the Frame Relay 64-bit PVC counts
when a Frame Relay encapsulated interface is added to a POS interface. The main POS
encapsulated subinterface counters are not effected and continue to function properly.
Workaround: If the 32-bit equivalent SNMP counters from the IF-MIB are retrieved with a fast
enough polling cycle that the counters can be guaranteed not to wrap between polls, the 64-bit
SNMP counters are not necessary.