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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(32)S9
Workaround: There is no workaround.
• CSCsh51580
Symptoms: On the E3 line card “non channelized 4 port OC12 -- 4OC12X/POS” when an IPv6 ACL
is applied on an outgoing interface to match on “Routing” extension header, it will instead match on
“Fragments” extension header.
Conditions: The same behavior is seen on E3 line card “Channelized OC12 CHOC12” on both
incoming and outgoing interface.
Workaround: Match on “Routing” extension header, or match on “Fragments” extension header.
• CSCsh51907
Symptoms: The following may be seen on physical OIR of a SPA-4XT3/E3 from a SIP-501 linecard:
%SPA_PLUGIN-4-LED_WRITE: SPA-4XT3/E3[8/2]: LED write failed for port 1, status 3.
Conditions: This symptom is observed on a Cisco 12000 series router that runs the c12kprp-p-mz
image of Cisco IOS Release 12.0(32)SY2
Workaround: There is no workaround
• CSCsh88212
Symptoms: BGP Neighbor drop after receiving a high rate of MCAST traffic without previously
defined state.
Conditions: 100K PPS of Mcast arriving at input interface on a GSR E5 card causing neighbor loss.
Workaround: There is no workaround.
• CSCsi01578
Symptoms: The MAC address on standby are 0 in RPR+.
Conditions: This symptom has been observed when doing RPR+ switchover. The traffic is lost.
Workaround: No workaround.
• CSCsi30873
Symptoms: VIP crash is seen with dLFIoLL and QoS config on MCT3
Conditions: Occurs when using shut/no shut on a multilink interface through which traffic is
flowing. Also occurs when clear interface multilink # command is issued.
Workaround: There is no workaround.
Further Problem Description: IPv6 Traffic is dropping in IPv6-IP tunnel with E2,E3,E4, E5 cards
• CSCsi69192
Symptoms: Upon an RPR+ switchover on a PE router followed by a switching of core traffic to an
auxiliary interface, some mroutes may not resume traffic.
Conditions: This affects E3 line cards. Line card is core for one vrf and edge for the other
Workaround: There is no workaround.
• CSCsi89068
Symptoms: A channelized STM-1 port adapter is not transmitting equal traffic compared to a
Multichannel T1/E1 port adapter when links from both port adapters are part of the same multilink
interface.
Conditions: The problem is seen under heavy load on the multilink PPP bundle with or without
multilink fragmentation enabled.
Workaround: Place all member links from the bundle on the same type of port adapter.
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