Cisco OL-4015-08 Bedienungsanleitung Seite 437

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789
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(31)S2
Conditions: This symptom is observed when the port adapter or FlexWan module is configured with
a QoS policy.
Workaround: There is no workaround.
CSCsa93349
Symptoms: When SFP state is changed in a SPA-based line card, it momentarily blocks all other IPC
message processing on the RP. This is due to a blocking call made and suspending the IPC message
handler process.
Conditions: This problem occurs when SPA-based cards are in the system.
Workaround: There is no workaround.
CSCsb17203
Symptoms: A Cisco 12000 series that is configured with dual PRPs, that has more than one 10G
Engine 5 SPA Interface Processor (12000-SIP-600), and that has a 10-port Gigabit Ethernet
(SPA-10X1GE) installed in each 12000-SIP-600 may not load one of the SPA modules after a cold
boot.
Conditions: The symptom is observed only when the Cisco 12000 series is powered off and powered
back on. The symptom does not occur on a Cisco 12000 series that is configured with a single PRP.
Workaround: Reload the router via a warm reload.
Further Problem Description: The symptom is related to a race condition that is only observed on
the Cisco 12000 series. The symptom is more likely to occur when timing becomes an issue, for
example, in a configuration with a large number of interfaces as described in the Symptoms above.
However, the root cause of this race condition is platform-independent and relates to the interface
IfIndex synchronization. This is the reason why the fix for this caveat is integrated in releases that
do not support the Cisco 12000 series.
CSCsb33258
Symptoms: An RP crashes during BGP convergence when MVPNs are configured.
Conditions: This symptom is observed on a Cisco router after a duplicate BGP MDT extended
community message is received that specifies a different Route Descriptor (RD) for an MDT that
already exists for the specified MDT source and group address.
Workaround: There is no workaround.
CSCsb53420
Symptoms: Cell loss occurs when bursty VBR ATM traffic is sent through a Cisco 12000 series
4-port ATM OC-12 ISE line card via an L2TPv3 IP tunnel to another 4-port ATM OC-12 ISE line
card on another Cisco 12000 series and when the VBR traffic is sent at rates lower than what is
configured on the routers (that is, at about 50 percent of the OC-12 line rate).
Conditions: These symptoms are observed on a Cisco 12000 series that is connected back-to-back
via an OC-192 or OC-48 POS link to another Cisco 12000 series.
Workaround: There is no workaround.
CSCsb59294
Symptoms: The output is stuck on a Cisco 7200 series.
Conditions: This symptom is observed when a service policy attached to a T1 or E1 ingress interface
on one of the following port adapters:
PA- MC-2T1
PA-MC-2E1/120
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