Specifications

1338
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S2
• CSCed57925
Symptoms: The cisco.mgmt.cns.config-changed event message does not get generated when atm
pvc CLIs are configured.
Conditions: This may occur when the CNS configuration notify agent is configured by the cns
config notify configuration command and atm pvc CLIs are configured.
Workaround: There is no workaround.
• CSCed59020
Symptoms: An Engine 1 single port Gigabit Ethernet line card for a Cisco 12000 series router may
reload unexpectedly on receipt of large amounts of “pause input” frames sent via flow control from
a downstream device.
Conditions: This symptom will occur only if the Gigabit Ethernet line card is forwarding large
amounts of traffic to an overwhelmed downstream device that in turn sends “PAUSE” (XOFF)
frames to the line card.
Workaround: Disable flow control on the downstream device.
• CSCed59500
Symptoms: During SB HA test, there is continuous traceback which shows there is an unrecognized
CPU q.
Conditions: This symptom is observed on a Cisco 12000 series router.
Workaround: There is no workaround.
• CSCed60987
Symptoms: On a Cisco 7500 series with distributed CEF, connectivity between CE routers that are
locally connected to the same interface may be broken.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(26)S or a later release when an output service policy is configured on the subinterface
of one CE router but not on the subinterface of the other CE router. Traffic that is process-switched
flows correctly between the CEs routers.
Workaround: Configure a dummy output service policy on the subinterface that does not have an
output service policy.
• CSCed61577
Symptoms: After executing a forced switchover, the secondary processor returns only to COLD
standby and not HOT standby.
Conditions: This symptom is observed on a c10k-p10-mz image on a Cisco 10000 series router.
Workaround: There is no workaround.
• CSCed63480
Symptoms: The hw-module {slot X} command shutdown on a 4GE Eng3 that is using GEC may
freeze a router during some time, bringing down line and protocols. Under certain circumstances,
DCEF may also be disabled.
Conditions: This symptom is observed on a Cisco 12000 series router.
Workaround: There is no workaround.
• CSCed64461
Symptoms: Frame Relay local switching fails when RED is applied on a Cisco 12000 series router
with a 2-port OC-3 channelized to DS1/E1 line card or a 6- port channelized T3 line card.