Cisco OL-4015-08 Bedienungsanleitung Seite 634

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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(30)S
Workaround: Enter the police cir percent command and use an absolute value instead of a
percentage.
CSCee57310
Symptoms: When you remove one link from an MLP bundle that has eight links and that is passing
bidirectional traffic, the traffic may not recover on one end.
Conditions: This symptom is observed on a Cisco 12000 series Engine 3 channelized OC-12 line
card and occurs only when bidirectional traffic is being passed.
Workaround: Enter the shutdown command followed by the no shutdown command on the MLP
interface.
CSCee57438
Symptoms: The second port pair (interface SRP x/1) of an Engine 4+ 4-port OC-48 DPT line card
is unable to forward traffic (including pings) at layer 3. The first port is also damaged (interface SRP
x/0); a portion of its forwarding capabilities is damaged. The layer 2 SRP protocol operates
correctly.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(27)S1 and does not require any specific trigger: the symptom is always there.
Workaround: There is no workaround.
CSCee57485
Symptoms: There are two symptoms:
Packets with explicit null labels may be dropped from an Engine 4+ POS line card.
CEF may become disabled on an Engine 4+ POS line card.
Conditions: These symptoms are observed on a Cisco 12000 series under the following conditions:
The router functions as a PE router with the Engine 4+ POS line card facing the core and
performing MPLS disposition.
VRFs are configured on the router.
The Explicit Null feature is enabled on the router.
Workaround: There is no workaround.
CSCee58770
Symptoms: A Cisco router may generate the following error message:
%TUN-5-RECURDOWN: Tunnel2 temporarily disabled due to recursive routing
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(26)S2 and that is configured with a tunnel services card (TSC) (that is, a 1-port OC-48
POS line card) when MPLS TE tunnels are configured on the router and when static routes are
added.
Workaround: There is no workaround.
CSCee59106
Symptoms: The performance of an OC-48 to E3 concatenated or channelized line card may drop
from 4 Mpps to 2.84 Mpps when oCAR is enabled in a configuration that includes both the
conform-action and exceed-action keywords and when oCAR is transmitting packets and changing
the precedence.
Conditions: This symptom is observed on a Cisco 12000 series that runs the c12kprp-p-mz image of
Cisco IOS Release 12.0(28)S or an earlier release. However, note that performance drops do not
occur in Release 12.0(27)S1.
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