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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(33)S6
Conditions: This symptom is observed when trying to modify the ip multicast vrf route-limit
commands.
Router(config)# ip multicast vrf 13979:6253 route-limit 25
Router(config)# end
Aug 26 04:57:06.885: %REDUNDANCY-3-CONFIG_SYNC: Active and Standby lbl configuration
out of sync
Workaround: There is no workaround.
• CSCsu96698
Symptoms: More specific routes are advertised and withdrawn later even if config
aggregate-address net mask summary-only is configured. The BGP table shows the specific
prefixes as suppressed with s>.
Conditions: This symptom occurs only with very large configurations.
Workaround: Configure a distribute-list in the BGP process that denies all of the aggregation child
routes.
• CSCsv15835
Symptoms: Traffic running, cell-packing of 5 or more cells, and changing shaping to CBR/VBR-RT
on an Engine 3 ATM L2 interface cause the port to exhaust its buffers and all ingress traffic to be
dropped.
Conditions: This symptom is observed on a Cisco 12000 router.
Workaround: There is no workaround (you must reload the linecard).
• CSCsv89643
Symptoms: If Ethernet interface configured as Open Shortest Path First (OSPF) point-to-point
network then adjacency is being established using only multicast packets. As a result routes
calculated over the link do not have MAC address of next-hop’s IP resolved prior to routes being
installed into the routing table. This leads to delay for routes to become usable as lower-level
protocols have to trigger MAC resolution. During short period of time traffic sent over the interface
is lost when routes are just installed for the first time.
Conditions: Occurs when Ethernet interface is configured for OSPF point-to-point.
Workaround: Problem will self-correct because passing traffic triggers MAC address resolution.
• CSCsw50410
Symptoms: The following traceback is seen on the console, and all the channelized serial links on
the E3 LC flap.
SLOT 5:1d00h: %EE48-3-INVALID_CFG_DATA: Channel 4: Invalid configuration data.
Channel type= 5 -Traceback= 40030F00 40417F44 40418208 40418444 404184B4 40418588 SLOT
5:1d00h: %EE48-3-INVALID_CFG_DATA: Channel 5: Invalid configuration data. Channel
type= 5 -Traceback= 40030F00 40417F44 40418208 40418444 404184B4 40418588
Conditions: This symptom occurs with all the serial links configured on a Channelized
OC48-DS3/Engine 3 card. Serial interfaces flap, bringing down BGP/OSPF for no apparent reason.
No configs were done.
Workaround: There is no workaround.
• CSCsw82176
Symptoms: A Cisco 12000 series Internet router that is running Cisco IOS Release 12.0(32)SY7
crashes by Unexpected exception to CPUvector 300.
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