Cisco Cisco IOS Software Release 12.4(23) Notas de publicación
375
Caveats for Cisco IOS Release 12.4
OL-7656-15 Rev. J0
Resolved Caveats—Cisco IOS Release 12.4(12b)
Resolved Caveats—Cisco IOS Release 12.4(12b)
Cisco IOS Release 12.4(12b) is a rebuild release for Cisco IOS Release 12.4(12). The caveats in this
section are resolved in Cisco IOS Release 12.4(12b) but may be open in previous Cisco IOS releases.
section are resolved in Cisco IOS Release 12.4(12b) but may be open in previous Cisco IOS releases.
Basic System Services
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CSCeb20967
Symptoms: A Route Switch Processor (RSP) may reload unexpectedly when a bus error with an
invalid memory address occurs while packets are placed into a hold queue.
invalid memory address occurs while packets are placed into a hold queue.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.0 S,
12.1(14)E4, or 12.2 S when the following sequence of events occurs:
12.1(14)E4, or 12.2 S when the following sequence of events occurs:
1.
A packet is switched via Cisco Express Forwarding (CEF).
2.
The egress interface has queueing/shaping configured.
3.
The egress interface is congested, causing the packet to be placed into the hold queue.
Workaround: There is no workaround.
IP Routing Protocols
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CSCsh02161
Symptoms: A Route Reflector (RR) does not withdraw a prefix that redistributes itself even if this
prefix is removed from the BGP table.
prefix is removed from the BGP table.
Condition: This symptom is observed on a Cisco router that functions as an RR that advertises two
of the same prefixes with different Route Distinguishers (RDs) when one of these prefixes
redistributes itself and when the other prefix is a route that is learned from an RR client via iBGP.
of the same prefixes with different Route Distinguishers (RDs) when one of these prefixes
redistributes itself and when the other prefix is a route that is learned from an RR client via iBGP.
Workaround: There is no workaround.
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CSCsh80678
Symptoms: New or flapping IGP routes may be injected into BGP even though no corresponding
network statements exist.
network statements exist.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.3(22) or a
later release when the auto-summary command is enabled for BGP.
later release when the auto-summary command is enabled for BGP.
Workaround: Enter the no auto-summary command.
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CSCsh90153
Symptoms: Connectivity is lost through a router when traffic is processed twice by NAT.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.4(8a), that
is configured for NAT and PBR, and that has a firewall feature enabled. Under certain conditions,
traffic is processed twice by NAT when it does not need to be.
is configured for NAT and PBR, and that has a firewall feature enabled. Under certain conditions,
traffic is processed twice by NAT when it does not need to be.
Workaround: Remove the firewall configuration from the router.
Further Problem Description: Syslogs and the output of the show ip nat translation command show
that traffic that is processed twice by NAT does not traverse the router.
that traffic that is processed twice by NAT does not traverse the router.