Specifications

1307
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S3
• CSCee24349
Symptoms: A Cisco 7500 series cannot boot when there are more than 256 different policy maps
attached as service policies on the router.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(26)S1 but may also occur in Release 12.2 S.
Workaround: Do not use more than 256 service policies.
• CSCee25588
Symptoms: A 12000 series Engine 2 line card may not accept a “tx-cos” configuration.
Conditions: This symptom is observed if the router previously had an Engine 4+ line card in the
same slot and this Engine 4+ line card was configured with an output service policy.
Workaround: Reload the router.
• CSCee27396
Symptoms: High CPU usage of greater than 90 percent occurs in the CEF Scanner process on all
line cards and TFIB-7-SCANSABORTED errors occur when you configure a link bundle.
Conditions: This symptom is observed on a Cisco 12410 that runs Cisco IOS Release 12.0(26)S1
when the bundle is configured on interfaces gig2/2 and gig6/2. (A 4-port Gigabit Ethernet ISE line
card is installed in slot 2 and slot 6.) The link bundle terminates on a third-party vendor switch.
Workaround: Remove the link bundle and use only one of the Gigabit Ethernet ports.
• CSCee28332
Symptoms: Multilink MLP in PE may fail / rejected eventually after 3 or more times reloading the
CE sides with different IOS images.
Conditions: The symptom is observed after 3 or more times reloading the CE router.
Workaround: Create new multilink interface or reload the vip for the bundled physical interface.
• CSCee28481
Symptoms: After working fine for sometime, a 4-port OC-12 ATM line card stops forwarding
unicast packets to the RP, and none of the unicast traffic that is sourced from or destined to the RP
via the 4-port OC-12 ATM line card goes through. Unicast traffic to the 4-port OC-12 ATM line card
interfaces fails too.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(21)ST7 when MPLS is enabled on the line card. IP traffic and IS-IS traffic that pass
through the router are not affected. To recover the line card, reset the line card.
Workaround: There is no workaround.
• 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 it may result in LC not 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.