Specifications

1127
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S2
Workaround: Attach the policy map when the MLP interface is in the “UP” state.
• CSCee18883
Symptoms: All VIPs in a Cisco 7500 series restart as a consequence of a Cbus complex that is
triggered by a stuck output. Just before the output becomes stuck, IPC timeout errors occur.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.3(5)
in a dLFIoATM environment. The symptom may also occur in other releases.
Workaround: There is no workaround.
• CSCee31196
Symptoms: An LDP session over a tunnel interface may drop and not come back up.
Conditions: This symptom is observed on a Cisco router running Cisco IOS Release 12.0(27)S1
when auto-tunnel traffic engineering is configured and when RSVP label distribution is configured
in the MPLS core.
Workaround: Run LDP in the MPLS core for all interfaces that have auto-tunnel traffic engineering
configured.
• CSCee32365
Symptoms: When a single bundle link associated with a Multilink Frame Relay (MFR) interface is
brought up, LMI exchanges over the MFR interfaces may not happen.
Conditions: This symptom is observed on a Cisco 7500 series that is configured for MFR.
Workaround: There is no workaround.
• CSCee34622
Symptoms: Neighbor adjacencies for the IS-IS, OSPF, or other routing protocol may bounce during
a Nonstop Forwarding (NSF) switchover.
Conditions: This symptom is observed when you enable a routing protocol for NSF and you enter
the external overload signalling router configuration command. The following configuration
illustrates this situation for IS-IS:
router isis area-tag nsf [cisco | ietf] external overload signalling
Workaround: Disable the external overload signalling router configuration command.
• CSCee49862
Symptoms: A Cisco 7500 series multichannel T3 port adapter (PA-MC-2T3+) may not provide a
two-second delay before bringing down the T3 controller.
Conditions: This symptom is observed when an alarm as defined in the ANSI T1.231 specification
occurs.
Workaround: There is no workaround.
• CSCee49983
Symptoms: When the controller of multichannel T3 port adaptor (PA-MC-2T3+) goes down for a
short duration and an alarm occurs, the port adapter does not report the type of alarm.
Conditions: This symptom is observed on a Cisco 7200 series and Cisco 7500 series that are
configured with a PA-MC-2T3+. The port adapter should provide a history table of recent alarm
conditions along with a corresponding time stamp to allow for proper troubleshooting.
Workaround: There is no workaround.
• CSCee53461
Symptoms: BGP adjacencies may time out on an Engine 3 channelized OC-12 line card.