Cisco OL-4015-08 Bedienungsanleitung Seite 486

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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(31)S
Conditions: This symptom is observed on a Frame Relay interface when there are multiple DLCIs
that have service policies enabled. Each DLCI has a hierarchical policy with a shape rate in the class
default at the parent level and a child policy with LLQ and CBWFQ classes. When traffic to each
DLCI is just below the shape rate and the combined traffic through the interface is close to line rate,
packet drops occur on some DLCIs. The symptom does not occur when traffic is sent to one DLCI
at the time.
Workaround: Increase the shape rate to compensate for the scheduling inaccuracy.
CSCef55463
Symptoms: When you configure vbr-nrt shaping on two or more PVCs that are defined under the
same physical ATM interface, one of the PVCs is subsequently unable to achieve the configured
vbr-nrt rate.
Conditions: This symptom is observed when a PA-A3-8E1IMA or PA-A3-8T1IMA port adapter is
installed in a Cisco 7xxx series and when the load is equal to or greater than the maximum
configured vbr-nrt rate on at least two PVCs.
Workaround: Configure vbr-nrt rates proportionally higher on each PVC. Enter the
transmit-priority 1 command on the PVC that must reach the guaranteed vbr-nrt. Doing so causes
the other PVC or PVCs to reach approximately 90 to 95 percent of the configured vbr-nrt rate.
CSCef56201
Symptoms: Multicast MAC rewrites are not updated, preventing multicast traffic from being
switched.
Conditions: This symptom is observed when the VLAN encapsulation is changed, for example from
dot1q to dot1q, from dot1q to QinQ, or from QinQ to dot1q.
Workaround: Enter the clear ip mroute command.
CSCef59275
Symptoms: Prefixes are rewritten over a FRR backup tunnel, causing traffic to drop from the tunnel.
Conditions: This symptom is observed when a point of local repair (PLR) runs Cisco IOS
Release 12.0(29)S and the merge point (MP) runs a release earlier than Release 12.0(29)S or
Release 12.2S.
Workaround: Run Release 12.0(29)S or a later release on the MP.
CSCef59972
Symptoms: An RP crashes when you remove class maps from a policy map.
Conditions: This symptom is observed on a Cisco 12000 series that runs a Cisco IOS interim release
for Release 12.0(30)S.
Workaround: There is no workaround.
CSCef61641
Symptoms: A change in the controller state does not affect the subrate interface state.
Conditions: This symptom is observed on a Cisco 7500 series that is configured with an
PA-MC-2T3+ port adapter.
Workaround: There is no workaround. However, you can synchronize the interface with the
controller by entering the shutdown interface configuration command followed by the no shutdown
interface configuration command on the affected interface.
CSCef61721
Symptoms: CEF may not be updated correctly with a route change.
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