Specifications

1224
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S
• CSCed43829
Symptoms: Random Early Detection maintains an average length of the outbound queue of a class
of traffic, and randomly discards newly arriving packets when the average falls within the
configured range. A Cisco 10000 series router may contain an error in the average queue length
computation which makes Random Early Detection too sensitive to the instantaneous queue length.
Conditions: This problem is seen on a Cisco 10000 series routers that runs Cisco IOS
Release 12.0(27)S but may also occur in earlier releases.
Workaround: There is no workaround.
• CSCed44319
Symptoms: A file that is copied to an ATA disk may become corrupted.
Conditions: This symptom is observed on any Cisco IOS image that contains the fix for
CSCdz27200. The problem does not occur on a disk that is formatted with 16 or less sectors/cluster.
Workaround: Use an ATA disk that is formatted with 16 or less sectors/cluster. The show disk all
command indicates how many sectors are configured per cluster.
• CSCed44793
This caveat consists of two separate systems, conditions, and workarounds.
Symptoms 1: A router may reload after a switchover to the standby processor.
Conditions 1: This symptom is observed on a Cisco Route Switch Processor (RSP).
Workaround1: There is no workaround.
Symptoms 2: After a switchover to a standby processor, the indices of the interfaces in the system
may be changed by mistake. This may cause problems with forwarding packets and may cause other
inconsistencies.
Conditions 2: This symptom is observed on a Cisco 12000 series.
Workaround 2: There is no workaround.
• CSCed45093
Symptoms: IP routing protocols may not stage on multilink PPP (MLP) interfaces on an ISE
channelized OC-12 line card.
Conditions: This problem is specific to an ISE channelized OC-12 line card and MLP interfaces.
Workaround: Use static routes.
• CSCed45460
Symptoms: The hw-module slot slot-number ip multicast hw-accelerate source-table size 4096
offset 0 command is not synced to a standby RP if a line card is reloaded while the standby RP is
booting.
Conditions: Symptom is observed on a Cisco 12000 series that runs Cisco IOS Release 12.0(28)S.
Workaround: Wait until the standby RP is fully operational before entering the above-mentioned
command.
• CSCed45643
Symptoms: An Engine 2 GE line card may not accept an MQC service policy.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(28)S.
Workaround: There is no workaround.