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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(32)S6
• CSCsg37116
Symptoms: After giving the command traceroute ip x.x.x.x or traceroute x.x.x.x over an
LDP-enabled network, the penultimate hop router shows a traceback message in the console log.
Conditions: This symptom has been observed when the mpls ip option is configured in the network
and for the core trunks.
Workaround: The issue seems to be avoided if you instead enter the traceroute mpls ipv4
A.B.C.D/32 command.
• CSCsg59699
Symptoms: The OSPFv3 cost onPortChannel interfaces calculated based on the interface bandwidth
may not be correct if the auto-cost reference-bandwidth command is used under the ipv6 ospf
router mode..
Conditions: This symptom has been observed when the auto-cost reference-bandwidth command is
used under the ipv6 ospf router mode.
Workaround: Use the shutdown command followed by the no shudown command on the
PortChannl interface.
Miscellaneous
• CSCed83616
Symptoms: A Cisco router may reload when you enter the show standby or show standby brief
command.
Conditions: This symptom has been observed on a Cisco router when multiple HSRP groups are
configured and unconfigured in a loop while traffic for the HSRP groups is being processed.
Note, however, that a stress scenario in which many HSRP groups are configured and unconfigured
while the show standby or show standby brief command is being entered may be a rather
uncommon scenario.
Workaround: Do not to enter the show standby or show standby brief command while
configuration changes are being made.
• CSCeg74772
Symptoms: When you enter the clear cef linecard command, IDBs may be hold on the line card.
When you enter the clear cef linecard command, the number of IDBs that are used on the line card
increases.
Conditions: This symptom has been observed on a Cisco platform when a GRE tunnel interface is
used.
Workaround: There is no workaround.
Further Problem Description: When many tunnel interfaces are used and when the clear cef
linecard command is entered several times, the SWIDB number may reach its upper limit. If this
situation occurs, you must reload the platform.
• CSCek57494
Symptoms: All packets may be dropped across a T1 or E1 link on which class-based shaping is
configured.
Conditions: This symptom has been observed on a Cisco 7200 series that has an NPE-G1 and that
runs Cisco IOS Release 12.2(28)SB.
Workaround: There is no workaround.
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