Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 249

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695
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Conditions: Occurs on a WS-C6509-E running Cisco IOS Release 12.2(18)SXF8. It happens very
rarely.
Workaround: Do not use the show memory command.
CSCsj67096
Symptoms: Traffic comes in on a port-channel trunk on one VLAN, is routed via NAT on Supervisor
Engine 720, and then sent back on same port-channel on another VLAN. Because the source index
is not getting re-written after NAT, the traffic gets dropped.
Note that if the traffic comes in on one port of the channel and goes back on the same port, the
packets get rewritten correctly but are subjected to partial packet loss.
Conditions: Occurs on the following configuration: * Cisco Catalyst 6000 series switches *
Supervisor Engine 720 * Cisco IOS Release 12.2(18)SXF7
When the above has a port-channel configured with combination of non-fabric-enabled and fabric-
enabled cards (such as WS-X6408 and WS-X6516) and this port-channel is configured as a trunk,
the symptoms occur.
Workaround: The workaround is to shut one member of the port-channel, so that traffic comes in on
one port and is routed out on the same port on the switch.
Alternatively you can use either fabric-enabled cards or non-fabric-enabled card in the port-
channel. Avoid combining non-fabric-enabled and fabric-enabled cards.
CSCsj69881
Symptoms: Router boots up very slowly.
Conditions: Occurs with 3,000 QinQ subinterfaces with QoS applied. The QoS policy uses a
class-map with a named ACL with many ACEs.
Workaround: Avoid using large access-lists in class-map statement.
CSCsj85065
A Cisco IOS device may crash while processing an SSL packet. This can happen during the
termination of an SSL-based session. The offending packet is not malformed and is normally
received as part of the packet exchange.
Cisco has released free software updates that address this vulnerability. Aside from disabling
affected services, there are no available workarounds to mitigate an exploit of this vulnerability.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20080924-ssl.shtml.
CSCsj87584
Symptoms: On VSS systems, call-home inventory was sending show idprom all rather than show
idprom switch all.
Conditions: This resulted in idprom information for only one chassis being received.
Workaround: There is no workaround.
CSCsj87687
Symptoms: A router may crash during startup when MPLS is configured.
Conditions: The symptom occurs when starting up an MPLS IOU network when all the IOU
instances starting with "-e" or "-s5".
Workaround: There is no workaround.
CSCsj87744
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