
904
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(30)S4
• CSCeh49892
Symptoms: The following incorrect error message is generated when an invalid QOS policy is
applied to an L2 ATM interface before a valid policy is applied:
Remove existing Service-policy CBR before applying new Service-policy egress
Conditions: This symptom is observed only on a Cisco router that is configured with a secondary
RP and ATM L2VPNs that function in the VP mode.
Workaround: There is no workaround.
• CSCeh50638
Symptoms: A 4-port Gigabit Ethernet ISE line card may crash.
Conditions: This symptom is observed on a Cisco 12000 series that is configured for multicast
traffic.
Workaround: There is no workaround.
• CSCeh60368
Symptoms: On a Cisco 10000 series that is configured with 6-port channelized T3 line cards, when
the primary and standby PREs are each loaded with a different Cisco IOS software release (for
example, Release 12.0(28)S and Release 12.0(28)S3) and when the standby PRE boots, the standby
PRE may crash or other errors may occur while the standby PRE configures the channelized T3
channels.
Conditions: This symptom is observed on a Cisco 10000 series for Cisco IOS Release 12.0(27)S,
Release 12.0(28)S, Release 12.0(30)S, Release 12.0(31)S or a rebuild of these releases when the
standby PRE runs a Cisco IOS software release that is either older or newer than the software release
on the primary PRE and when one PRE runs a software release that includes the fix for caveat
CSCsa41907 and the other PRE runs a software release that does not contain the fix for caveat
CSCsa41907.
Workaround: Do not perform live software upgrades. Rather, bring the primary PRE down and boot
the standby PRE with the same Cisco IOS software release that runs on the primary PRE, so that
when both PREs come up, their software releases match.
Otherwise, upgrade to an image containing the fix for CSCeh60368.
Further Problem Description: When both the primary and standby PRE run a Cisco IOS software
release that contains the fix for caveat CSCsa41907, the symptom does not occur.
• CSCeh78918
Symptoms: When a line card has reloaded because you reloaded the router, the line card crashed, or
you entered a command to reload the line card, the following message may appear on the console:
%MDS-2-RP: MDFS is disabled on some line card(s). Use “show ip mds stats linecard” to
view status and “clear ip mds linecard” to reset.
This message may be generated because MDFS is erroneously disabled on the reloaded line card.
Erroneous disabling of MDFS may unnecessarily extend network convergence time.
Conditions: This symptom is observed on a distributed router or switch such as a
Cisco Catalyst 6000 series, Cisco 7500 series, Cisco 7600 series, Cisco 10000 series, and
Cisco 12000 series. The symptom occurs when the router has the ip multicast-routing distributed
command enabled for any VRF and when a line card is reloaded more than 50 seconds into the
60-second MDFS flow-control period.
Workaround: The symptom corrects itself after 60 seconds. Alternatively, you can enter the clear ip
mds linecard slot number command.
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