Cisco OL-4015-08 Manual de usuario Pagina 299

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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)S
Conditions: This symptom is observed on a Cisco 7500 series that is configured with a
PA-MC-xT1/E1 type of port adapter.
Workaround: There is no workaround.
CSCsb65340
Symptoms: An interface may not be able to receive OSPF hello packets.
Conditions: This symptom is observed after you have entered the shutdown interface configuration
command followed by the no shutdown interface configuration command on the peer interface,
causing a link up/down event to occur.
Workaround: Reconfigure OSPF.
Further Problem Description: The symptom occurs because the address filter entry is deleted during
the link up/down event. You can verify that the symptom has occurred in the output of the show
controller command and you can manually confirm the deletion of the OSPF MAC entry. When you
reconfigure OSPF, the OSPF MAC entry is re-inserted in the address filter.
CSCsc17534
Symptoms: Unicast packets are not CEF-switched on a VIP but are fast-switched on the RP.
Conditions: This symptom is observed on a Cisco router that has a VIP only when the ingress
interface is an ISL subinterface.
Workaround: There is no workaround.
CSCsc29478
Symptoms: Interfaces of a serial port adapter fail and do not come into service, preventing you from
establishing links or tunnels via these interfaces.
Conditions: This symptom is observed on a Cisco 7500 series that runs an interim release for
Cisco IOS Release 12.0(32)S.
Workaround: There is no workaround.
IP Routing Protocols
CSCdz84521
Symptoms: Selective Packet Discard (SPD) with an IP precedence of 6 and 7 may not function
correctly. Packets may be treated as nonpriority packets. SPD is used when a queue is filling (for
example, because of a flap or change) and routing traffic must be guaranteed a high priority and not
dropped while the interface recovers. In this situation, routing traffic with an IP precedence of 6 and
7 is not given proper priority, and the recovery process may be delayed.
Conditions: This symptom is observed with incoming traffic on any interface of a Cisco 7200 series
and may be observed on other Cisco platforms as well.
Workaround: There is no workaround.
CSCec12299
Devices running Cisco IOS versions 12.0S, 12.2, 12.3 or 12.4 and configured for Multiprotocol
Label Switching (MPLS) Virtual Private Networks (VPNs) or VPN Routing and Forwarding Lite
(VRF Lite) and using Border Gateway Protocol (BGP) between Customer Edge (CE) and Provider
Edge (PE) devices may permit information to propagate between VPNs.
Workarounds are available to help mitigate this vulnerability.
This issue is triggered by a logic error when processing extended communities on the PE device.
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