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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)S5
Conditions: This symptom is observed when an interface that is configured for some form of fancy
queueing (that is, anything besides FIFO queueing) actively forwards traffic.
Workaround: Disable fancy queueing on the Ethernet interface.
• CSCek08638
Symptoms: Data traffic that is received by a provider edge (PE) router on an Ethernet port may not
be forwarded over an L2TPv3 tunnel.
Conditions: This symptom is observed on a Cisco 12000 series when the line card that faces the
customer edge (CE) router is one of the following line cards:
–
8-port Fast Ethernet, 100BASE-FX line card (8FE-FX-SC-B)
–
8-port Fast Ethernet, 100BASE-TX line card (8FE-TX-RJ45-B)
–
1-port Gigabit Ethernet line card (GE-GBIC-SC-B)
Workaround: There is no workaround.
• CSCek24821
Symptoms: The memory of a SIP-400 depletes entirely, and the following error message is
generated:
EE48-3-ALPHA_MCAST: Can’t assign new hw_mdb - (S,G)=(<IP>), mi=431, side=TX
Conditions: This symptom is observed on a Cisco 12000 series that functions as a PE router when
the following conditions are present:
–
The router receives traffic with invalid sources, that is the traffic is sent from sources that are
not in the global routing table, causing RPF to fail.
–
(S,G) information is still created for the invalid sources, and when the (S,G) information times
out, the memory of the SIP-400 is not released.
–
Regular traffic comes from a valid source and is directed to the same group address.
–
The non-RPF source has a hash collision with the valid traffic stream.
Workaround: There is no workaround.
• CSCek25127
Symptoms: There is no IPv4 BGP MPLS functionality between BGP peers.
Conditions: This symptom is observed on a Cisco 12000 series that is connected to a BGP peer over
a link bundle interface.
Workaround: There is no workaround.
• CSCek27756
Symptoms: All interfaces of a 24-port channelized E1/T1 line card flap.
Conditions: This symptom is observed on a Cisco 10000 series when extensive channel
reprovisioning is configured on the line card.
Workaround: Perform a microcode reload for the line card and then reset the line card.
• CSCek28323
Symptoms: An interface of an Engine 3 ingress line card that functions in feature mode may become
stuck, and all traffic may be dropped.
Conditions: This symptom is observed on a Cisco 12000 series that is configured with an Engine 3
ingress line card that has the hw-module slot slot-number np mode feature command enabled and
that is configured with an egress line card that has a link bundle interface.
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