Cisco OL-4015-08 Manual de usuario descargar pdf (Pagina 496)

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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(31)S

Alternate Workaround: Power down and power up the router.

• CSCeg03606

Symptoms: Multicast VPN (MVPN) traffic does not resume.

Conditions: This symptom is observed on a Cisco 12000 series that runs a Cisco IOS interim release

for Release 12.0(30)S and that functions as a PE router that is configured for MVPN.

Workaround: Enter the clear ip mroute command.

• CSCeg03885

This caveat consists of two symptoms, two conditions, and two workarounds, and only refers to

routers that are configured with MPLS TE tunnels:

Symptom 1: Momentary packet loss may occur during tunnel reoptimization, usually several times

between the creation of a new tunnel and the cleanup of the old tunnel. Sometimes, longer packet

loss may occur during tunnel reoptimization.

Condition 1: This symptom is observed on any MPLS TE tunnel when the reoptimized label

switched path (LSP) traverses a midpoint or headend router that runs Cisco IOS Release 12.0(25)S4.

Workaround 1: There is no workaround.

Symptom 2: Permanent bad labels may be present after MPLS TE tunnel reoptimization.

Condition 2: This symptom is observed on a router that runs a Cisco IOS image that does not include

the fix for CSCed21063 and that functions in a network in which some routers run Cisco IOS

Release 12.0(25)S4. With the exception of release 12.0(25)S4 itself, Cisco IOS software releases

that are listed in the “First Fixed-in Version” field at the following location are not affected:

http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCed21063.

Workaround 2: There is no workaround. To recover from the symptoms, enter the shutdown

interface configuration command followed by the no shutdown interface configuration command

on the affected TE tunnel interface.

• CSCeg05681

Symptoms: A CSC OIR may cause all line cards in a router to enter the disabled state and the

standby RP to reload continuously.

Conditions: The symptom is observed on a Cisco 12000 series that has dual PRPs and that runs a

Cisco IOS interim release for Release 12.0(30)S.

Workaround: There is no workaround.

• CSCeg05925

Symptoms: After you have entered the shutdown interface configuration command followed by the

no shutdown interface configuration command on a VLAN interface, MPLS traffic is dropped.

Conditions: This symptom is observed only when MPLS static labels are configured. When an

MPLS TFIB entry is created using MPLS static labels and when you enter the shutdown interface

configuration command followed by the no shutdown interface configuration command on the

egress VLAN interface, the MPLS entry may be missing from the TFIB on the line cards or port

adapters.

Workaround: Enter the clear ip route command for the affected prefix.

• CSCeg06154

Symptoms: A router crashes when you delete an MPLS subinterface by entering the no interface

command.

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