Specifications

1174
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S1
Conditions: This symptom is observed on a Cisco router that has VCS configured with local
switching.
Workaround: There is no workaround.
• CSCee51126
Symptoms: A Cisco 12000 series may drop 2 to 3 percent of the ping packets that are destined to
the router when the input interface is an Engine 4+ line card.
Conditions: This symptom is observed for ICMP packets on a Cisco 12000 series that is Cisco IOS
Release 12.0(26)S1. The symptom may also affect other types of packets.
Workaround: There is no workaround.
• CSCee51909
Symptoms: An Engine 3 channelized (OC-48 to DS3) line card that processes traffic crashes.
Conditions: This symptom is observed when you change the MTU on the E4+ disposition line card.
Workaround: There is no workaround.
• CSCee52028
Symptoms: A Cisco 12000 running Cisco IOS Release 12.0(28)S fails to properly apply IPv6 ACLs
when the ACLs match packets based on the IPv6 source address.
Conditions: This symptom exists for all IPv6 ACLs applied on Engine 3 line cards.
Workaround: There is no workaround.
• CSCee53458
Symptoms: After you boot a Cisco 12000 series, one of the members of a link bundle that has eight
members that are configured on an Engine 2 16-port O-C3 POS line card shows up in both the active
and passive lists.
Conditions: This symptom is observed on a Cisco 12000 series that runs an interim release of
Cisco IOS Release 12.0(28)S.
Workaround: There is no workaround.
Further Problem Description: Proper functionality is not impacted by this caveat.
• CSCee53472
Symptoms: Interfaces of a line card may stay in the link down and line down states when you create
an initial configuration on a new line card.
Conditions: This symptom is observed on a Cisco 10000 series when a previously unprovisioned
line card is introduced into the system and a new configuration is entered for this line card.
Workaround: After inserting the new line card, save the configuration and reboot the router.
• CSCee54143
Symptoms: An E1 port on a PA-MC-8T1 port adapter may stay down after a VIP crash.
Conditions: This symptom is observed on a Cisco 7513 that is configured with a VIP in which a
PA-MC-8T1 port adapter with a channelized E1 (or T1) port is installed in slot 0.
Workaround: Enter the shutdown command followed by the no shutdown command on the affected
interface.
• CSCee54198
Symptoms: A Cisco 12000 series crashes because of a bus error.