Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario descargar pdf (Pagina 134)

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8

OL-10394-05 Rev. R0

Symptoms: The router crash when the default pppoe enable command is entered.

Conditions: Occurs with 4094 PPPoE sessions active. When the above command is used to disable

PPPoE under Ethernet subinterface, the router crashes.

Workaround: There is no workaround.

• CSCsr68528

Symptoms: When there is heavy traffic on the 10-GE SPA (that is, 80 percent or more of line rate),

and the interface is shut/no shut, there is a low probability that the interface may become stuck and

incorrectly send pause frames on the connected link, interrupting traffic flow. This is also seen on

ES20 line cards with 10-GE ports. (CSCsx82439)

Conditions: This symptom is observed when the link is shut/no shut while there is a high level of

traffic on the link. In case of ES20, it is also seen in case of line card reload.

Workaround: Add and remove auto-negotiation on the interface configuration to recover the link. In

case of ES20, toggling flow-control recovers the interface.

• CSCsr70963

Symptoms: A Cisco 10000 PRE will reload unexpectedly when a radius server which is marked as

dead is removed from the configuration during authentication of sessions.

Conditions: The issue is seen when a RADIUS server is marked as dead. There are attempts to retry

and access the server during its removal from the configuration.

Workaround: There is no workaround.

• CSCsr72352

Symptoms: EBGP-6PE learned IPv6 labeled routes are advertised to IBGP-6PE neighbor by setting

NH as local IP address.

Conditions: This symptom is observed on 6PE Inter-AS Option C with RR case.

Workaround: There is no workaround.

• CSCsr76818

Symptoms: Queue wedges on one of the SP input queues. When the peer switch was sending VTP

packets to the switch trunk interface where no vtp was configured, the interface input-buffer was

filled up by the VTP packets. When the buffer is full, the interface is not be able to process any

incoming control packets.

Conditions: Occurs when the trunk interface is configured no vtp and its peer interface is a has VTP

enabled.

Workaround: Configure the peer with no vtp to prevent VTP packets being received on the other

interface.

• CSCsr79367

Symptoms: Slow synchronization of IP subscriber sessions from Active to Standby RP.

Conditions: This issue is observed only for a large number of IP subscriber sessions. While the

traffic is flowing, if user manually requests to clear all the sessions and while that is processing the

line card reboots, then standby RP can get into a state there are dangling sessions. This does not

render the router useless, but increases the sync time from active to standby.

Workaround: There is no workaround.

• CSCsr80601

Symptoms: An ISAKMP SA is not deleted as expected after removing the RSA key.

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