Specifications

1352
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S2
• CSCee57438
Symptoms: The second port pair (interface SRP x/1) of an Engine 4+ 4-port OC-48 DPT line card
is unable to forward traffic (including pings) at layer 3. The first port is also damaged (interface SRP
x/0); a portion of its forwarding capabilities is damaged. The layer 2 SRP protocol operates
correctly.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(27)S1 and does not require any specific trigger: the symptom is always there.
Workaround: There is no workaround.
• CSCin41269
Symptoms: A controller of an 8-port multichannel T1/E1 PRI port adapter (PA-MC-8TE1+) may fail
to come up after the router has booted up.
Conditions: This symptom is observed on a Cisco router that is configured with a PA-MC-8TE1+.
The symptom is platform independent and port adapter dependent.
Workaround: Enter the shutdown controller configuration command followed the no shutdown
controller configuration command on the affected controller.
Alternate Workaround: Enter the clear counters user EXEC or privileged EXEC command on the
affected interface of the PA-MC-8TE1+.
• CSCin52138
Symptoms: When flaps occur on an Inverse Multiplexing over ATM (IMA) group interface on which
the Any Transport over MPLS (AToM): ATM Cell Relay over MPLS: VC Mode feature is
configured, input packets may be switched via Cisco Express Forwarding (CEF).
Conditions: This symptom is observed on a Cisco 7500 series that has an IMA group interface that
is configured on a Versatile Interface Processor (VIP).
Workaround: Perform an online insertion and removal (OIR) of the VIP.
• CSCin61140
Symptoms: A line card reloads continuously after an OIR.
Conditions: This symptom is observed when the line card has MFR and a service policy configured.
Workaround: Remove the service policy before performing an OIR.
• CSCin62978
Symptoms: A FlexWAN, enhanced FlexWAN, or Versatile Interface Processor that has a PA-MC-E3
or PA-MC-T3 installed may crash.
Conditions: This symptom is observed under rare conditions in a stress situation with dFLI and
dCRTP configured.
Workaround: There is no workaround.
• CSCin66542
Symptoms: The line protocol on a T1 of a T3 controller in a PA-MC-2T3+ port adapter may stay in
the down state even when looped.
Conditions: This symptom is observed on a Cisco 7200 series and Cisco 7500 series.
Workaround: There is no workaround.
• CSCin72219
Symptoms: If you enter the shutdown command followed by the no shutdown command on an
interface, traffic that congests the interface may cause the router to crash.