Specifications

1172
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S1
Workaround: Unconfigure and reconfigure the VRF configuration on the misconfigured
subinterfaces.
• CSCee40349
Symptoms: Cisco 12816 and 12810 routers need to have specific MBSU 5v and on- board 5v
thresholds other than the values in the legacy system. Otherwise, there may be error messages in the
console logs that complain that the voltages are abnormal.
Conditions: This symptom is observed on Cisco 128xx series routers.
Workaround: The no show environment command can be configured, but only if this problem is
seen.
• CSCee41413
Symptoms: An active PRE on a Cisco 10000 series may crash.
Conditions: This symptom is observed when the standby PRE goes down just when the driver of a
CHSTM1 or CHOC12 line card attempts to synchronize a linestate message.
Workaround: Avoid resetting the standby PRE unnecessarily.
• CSCee41544
Symptoms: If there is sequence number enabled on a PVC and you add a service policy to this PVC,
the sequence number configuration is lost.
Conditions: This symptom is observed when you enable the sequence number configuration and
then add a service policy to the same PVC.
Workaround: After the symptom has occurred, re-add the sequence number configuration to the
PVC.
• CSCee41728
Symptoms: Some voltage threshold levels may not be set correctly and may cause a line card to
power down without any warning messages if the voltage drops below 3v. Note: There has been no
reports of this happening yet.
Conditions: This symptom is observed on Cisco 12000 series routers.
Workaround: The no show environment command can be configured, but only if this problem is
seen.
• CSCee42198
Symptoms: Engine 4+ loadsharing does not work correctly in a VPN imposition situation. The
problem is not seen with Engines 0, 2 and 3.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(27)S when traffic enters on a VRF interface and is loadshared over four links to the
core. Traffic is loadshared over only two of the four links.
Workaround: Use three-path loadbalancing.
• CSCee42279
Symptoms: During an L2TPv3 test with a Cisco 12000 series 4-port OC-12 ATM line card, when
you bump traffic on more than two ports that process a high rate of traffic, traffic may stop. When
this situation occurs, the CPK24 FPGA on the line card generates ingress packet length errors and
sometimes SDRAM CRC errors.
Conditions: This symptom is observed on a 4-port OC-12 ATM line card that is configured for
L2TPv3 and that is installed in a Cisco 12000 series that runs the gsr-p-mz image of Cisco IOS
Release 12.0 S.