
758
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(31)S4
• CSCek05730
Symptoms: A Cisco 7200 series that runs Cisco IOS Release 12.0(31)S1 may crash unexpectedly
because of a bus error and/or display some spurious memory accesses.
Conditions: This symptom is observed when an interface that is configured for some form of fancy
queueing (that is, anything besides FIFO queueing) actively forwards traffic.
Workaround: Disable fancy queueing on the Ethernet interface.
• CSCek24821
Symptoms: The memory of a SIP-400 depletes entirely, and the following error message is
generated:
EE48-3-ALPHA_MCAST: Can’t assign new hw_mdb - (S,G)=(<IP>), mi=431, side=TX
Conditions: This symptom is observed on a Cisco 12000 series that functions as a PE router when
the following conditions are present:
–
The router receives traffic with invalid sources, that is the traffic is sent from sources that are
not in the global routing table, causing RPF to fail.
–
(S,G) information is still created for the invalid sources, and when the (S,G) information times
out, the memory of the SIP-400 is not released.
–
Regular traffic comes from a valid source and is directed to the same group address.
–
The non-RPF source has a hash collision with the valid traffic stream.
Workaround: There is no workaround.
• CSCek25127
Symptoms: There is no IPv4 BGP MPLS functionality between BGP peers.
Conditions: This symptom is observed on a Cisco 12000 series that is connected to a BGP peer over
a link bundle interface.
Workaround: There is no workaround.
• CSCek25442
Symptoms: MFR interfaces may flap on a Cisco 12000 series.
Conditions: This symptom is observed when a high rate of packets are punted to the CPU of the line
card that is configured for low-priority Raw Queue (RawQ).
Workaround: Identify the reason for the high rate of packets that are punted to the CPU of the line
card and correct the situation.
• CSCin74934
Symptoms: A VIP may crash when the MTU is changed on an MFR interface or on its member links.
Conditions: This symptom is observed on a Cisco 7500 series that is configured for dMFR.
Workaround: There is no workaround.
• CSCin79691
Symptoms: QoS information disappears from a FlexWAN module or VIP that is configured with a
distributed MFR interface.
Conditions: This symptom is observed after the FlexWAN module or VIP resets or after the interface
flaps.
Workaround: Remove the service policy from the interface and reapply it to the interface.
Comentarios a estos manuales