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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(30)S
CSCee84933
Symptoms: A 1-port 10-Gigabit Ethernet line card (1X10GE-LR-SC) may crash, reporting a stack
trace pointing to the optics interrupt handler.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(27)S1 when you shut down the 10GE port of a 4-port 10 Gigabit Ethernet module
(WS-X6704-10GE) that is installed in a Cisco 7609 at the other side of the connection.
Workaround: There is no workaround.
CSCee88296
Symptoms: A Cisco 12000 series reloads unexpectedly when you configure an MPLS TE tunnel.
Conditions: This symptom is observed when a PVC bundle is configured on an interface or
subinterface and when you configure an MPLS TE tunnel on the same interface or subinterface.
Workaround: There is no workaround.
CSCee88364
Symptoms: A set command may not have any effect on traffic and packets are not marked.
Conditions: This symptom is observed when a set command is enabled in a policy map that is
attached to an interface.
Workaround: There is no workaround.
CSCee90155
Symptoms: A TLU memory leak occurs on an Engine 3 line card that has aggregate IPv6 labels when
the associated IPv6 route is flapped or changed.
Conditions: This symptom is observed when you inject static routes that point out of a Gigabit
Ethernet (GE) interface of a 4-port GE ISE line card and when the GE interface is flapped.
Depending on the number of aggregate IPv6 labels, the TLU memory leak can be either
service-impacting or very minor.
Workaround: There is no workaround.
CSCee90295
Symptoms: A Cisco 12000 series may reload when you configure a large number of class maps.
Conditions: This symptom is observed on a Cisco 12816 that has a PRP and that runs Cisco IOS
Release 12.0(28)S.
Workaround: Configure a maximum of 255 classes per parent policy map.
CSCee90552
Symptoms: When you send an SNMP query to poll the CBQOS MIB, high CPU utilization may
occur. Depending on number of service policies attached, the CPU utilization may reach 100
percent, causing many different negative effects to occur: the Telnet connection may go down, LDP
may go down, and in some cases the router may crash.
Conditions: This symptom most likely occurs when the unsupported cbQosREDClassStats objects
are polled and when there are about 1000 QoS policy attachment configured.
Workaround: The potential workarounds include the following:
Reduce the number of QoS policy attachments.
Avoid polling the unsupported stats table(s).
Reduce the polling frequency.
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