Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 192

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
CSCso90970
Symptoms: The no ip proxy-arp command that is configured under ISG enabled interface is not
working.
Conditions: This symptom is observed on the ethernet interface, where an ip subscriber command
is configured. Same interface allows disabling IP Proxy ARP with the no ip proxy-arp command,
but the command is ignored.
Workaround: There is no workaround.
CSCsq06208
Symptoms: When health monitoring (HM) diagnostic failure happens, call-home diagnostic
messages are not out before platform action is taken.
Conditions: Call-home is subscribed to diagnostic alert group minor or major error and the gold
policy is active. It only happens when the HM diagnostic test interval is small enough.
Workaround: Set the HM diagnostic test interval to be large enough, but there is no guarantee it will
work in all test cases.
Further Problem Description: Because gold policy is last policy in EEM queue, it waits for
call-home messages to send out before it executes. If gold policy continues to trigger on the next test
failure after reaching the threshold when action notify flag is already false, it does not need to wait
for call-home message to execute. It could crash the system before the call-home message for the
last gold policy finishes.
Adding ACTION_NOTIFY TRUE condition to the gold policy will prevent the gold policy to
continuously execute and consistent with call-home message triggering condition.
CSCsq14261
Symptoms: Downstream traffic will drop when we send IPv6 traffic over PPPoE sessions.
Conditions: Bring up a PPPoE session over L2TP tunnel for address negotiated by IPv6, then send
downstream IPv6 traffic.
Workaround: There is no workaround.
CSCsq42885
Symptoms: Line card crashes recurrently with the “Address exception error”.
Conditions: The issue is seen when entering the no shutdown command on the spatial reuse
protocol (SRP) interface.
Workaround: There is no workaround.
CSCsq53542
Symptoms: After stateful switchover (SSO) there may be loss of multicast packet delivery for 10 or
more seconds.
Conditions: Occurs when multicast routing is enabled in the default mode.
Workaround: If there are no mStatic or mBGP routes, the following configuration will avoid the
problem:
Router(config)#ip multicast rpf multitopology
Router(config)#global-address-family ipv4 multicast
Router(config-af)#topology base
Router(config-af-topology)#use unicast base
Router(config-af-topology)#
CSCsq55691
Symptoms: QoS with Link Fragmentation and Interleaving (LFI) over ATM does not work.
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