Specifications

59
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
Caveats
IP Routing Protocols
• CSCdr49641
A Cisco router that is running Cisco IOS Release 12.0(10)S and that receives a large packet that
was fragmented before receipt may display the following error message at the rendezvous point of
a Multicast network that is running Protocol Independent Multicast (PIM) sparse mode:
%PIM-5-REG_ENCAP_INVALID: Bad register from <IP-address> for (<IP-address>,
<Class-D-IP-address>). Trace = ....
Workaround: Send a mix of large and small packets from the source so that the source tree is set up
correctly by the small packets between the first hop and the Route Processor (RP). If the Multicast
data is forwarded correctly, then this situation may not cause any real harm.
Alternate workaround: Reduce the packet size from the source so that fragmentation does not occur
between the first hop and the RP.
• CSCdr50217
Under rare circumstances, when a Cisco router does not receive any updates but has to send
numerous updates to a peer router, Border Gateway Protocol (BGP) sends updates slowly because
of a scheduling inefficiency in BGP. There is no workaround.
• CSCdr76940
A Cisco 12000 series Gigabit Switch Router (GSR) might display the following error message:
%LC-3-PSALOADSHARE MPLS loadsharing inconsistency for 0.0.0.0/0
No other problems have been proven to be related to this message. If you see any MPLS
load-sharing forwarding problems near the time the error message was displayed, contact your
Cisco technical support representative. There is no workaround.
• CSCdr89108
Multicast distributed switching (MDS) sometimes does not function properly on a Versatile
Interface Processor (VIP) interface of a Cisco 7500/RSP series router; the interface is inadvertently
changed to process switching when there are process switching interfaces in the router.
Workaround: Reenter the no shutdown configuration command on the affected interfaces.
• CSCds05364
When Distributed FRF.12 and Quality of Service (QoS) service policy are configured on a large
number of Frame Relay permanent virtual circuits (PVCs), FRF.12 might not function after the
router reloads. In this situation, the output of the show frame-relay fragment command will show
no fragment count even though FRF.12 appears to be configured properly.
Workaround: Reconfigure FRF.12 after the router reloads.
• CSCds11636
Writing a configuration to NVRAM that contains “ip nbar resources” may cause A Cisco router to
reload.
Workaround: Do not save network-based application recognition (NBAR) resource configurations
to NVRAM.
• CSCds12065
A Cisco 12008 Gigabit Switch Router (GSR) that is running the gsr-k4p-mz image in Cisco IOS
Release 12.0(11)S may display the following error message without any debugging enabled:
%GRP-3-IFCON: TOO MANY QUEUED MESSAGES
There is no workaround.