Specifications

1169
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S1
• CSCee30527
Symptoms: After reloading a Cisco 12000 series, the following message may be seen on an Engine 2
or Engine 3 line card:
%MBUS-2-DNLDFAIL: IOS download to slot 7 fail, timeout
In some cases this situation may prevent the line card from coming up:
%GRP-3-ABANDON_DOWNLOAD: End attempt to start the linecard in slot 7
Conditions: This symptom is observed rarely on a Cisco 12000 series that is running the gsr-p-mz
image of Cisco IOS Release 12.0(28)S.
Workaround: The line card may come up when you reload the router again.
• CSCee31105
Symptoms: A wrong aggregate NetFlow cache prefix may occur when an extended Deny ACL is
configured with AGNF. You are supposed to find one prefix entry in the cache but there are two
prefix entries.
Conditions: This symptom is observed when an extended Deny ACL is configured with AGNF on a
Cisco 12000 series Engine 3 16-port OC-3 POS line card.
Workaround: There is no workaround.
• CSCee31618
Symptoms: Buffer leakage could occur when a high load of traffic is sent to an interface that has a
service policy enabled. This could result in ping failures or very long packet delay.
Conditions: The problem is observed with an MC-T3+ interface that is configured in unchannelized
mode, and the traffic consists only of small packets such a 64-byte packets.
Workaround: Manually configure the tx-ring-limit command to lower the number of packets that
can be placed on the transmission ring.
• CSCee32208
Symptoms: After a circuit bounces, traffic stops being passed on a VC when using a VC bundle.
Other VCs on the same subinterface still work. The switch on the other side of the VC does not show
any received cells from the VC.
In addition, the show atm vc command does not work because even after the VC is recovered, the
command output still does not show any traffic.
Conditions: These symptoms are observed on a Cisco 12000 series.
Workaround: Enter the shutdown command followed by the no shutdown command on the affected
subinterface.
• CSCee32484
Symptoms: After performing a manual switchover on a dual-RP router that functions in RPR+ or
SSO mode, the following error message may be seen on an 8xOC3ATM line card, and the line card
may stop forwarding traffic:
%QM-4-STUCK: Port 0 Queue mask 0x80
Conditions: This symptom is observed on a Cisco 12000 series that is running the gsr-p-mz image
of Cisco IOS Release 12.0(28)S.
Workaround: Perform a microcode reload on the line card.
• CSCee32921
Symptoms: Line cards in a Cisco 12000 series dual-RP router running Cisco IOS Release 12.0(28)S
may fail when the active RP is reloaded.