Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario descargar pdf (Pagina 24)

470

Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8

OL-10394-05 Rev. R0

• CSCtf35224

Symptoms: When using Cisco IOS Release 12.2(33)SRD3, UDP broadcast traffic cannot be

forwarded correctly through flexwan line card of the Cisco 7600. There are some count values that

are increasing on serial interface of brand router, but there was no output from the debug ip packet

command on brand router.

Conditions: When using Cisco IOS Release 12.2(33)SRD3 based on below topology, UDP broadcast

traffic cannot be forwarded correctly using the ip helper-address x.x.x.x command.

2800-4(Pagent)[F0/0] <---------> [Gi6/2] 7600-2 [S4/0/0:1] <----Serial back-

to-back-----> [S0/3/0:1] 2800-5

Traffic Pattern from Pagent is below.

- tgn L3-src-addr 10.1.1.2

- tgn L3-dest-addr 192.168.234.255

- tgn L4-src-port 1234

- tgn L4-dest-port 1234

Workaround: When using Cisco IOS Release 12.2(33)SRC1, UDP broadcast traffic can be

forwarded correctly using the ip helper-address x.x.x.x command.

• CSCtf39455

Symptoms: Router can hang when xconnect configuration is modified on a VLAN subinterface

while data packets are being switched. The following error traceback is printed:

%SYS-2-NOTQ: unqueue didn't find 0 in queue

Conditions: The symptom is observed when the VLAN subinterface is still seeing data traffic and

the main interface is not shut down, and when the xconnect configuration on the VLAN subinterface

is being modified.

Workaround: Shut down the main ethernet interface when doing xconnect configuration changes on

the subinterface.

• CSCtf44529

Symptoms: PPPATM session does not come up on its own after switchover.

Conditions: This symptom occurs when DLFIoATM is configured along with RPR+.

Workaround: Use the shutdown command followed by the no shutdown command on the ATM

interface.

• CSCtf48413

Symptoms: MLS CEF entries for default route are not getting reprogrammed for default routes after

a LC reload. This issue is there when default route is getting resolved through MPLS TE tunnels

with FR objects, and one of the LC through which MPLS TE tunnel passes through crashes.

Conditions: This symptom occurs when default route is reachable through more than one mpls te

tunnels with FR objects. When one of the LC resets (through which MPLS TE tunnel is passing

through), FR object backwalk is not fixing the adjacency properly.

Workaround: This issue happens only in LC reset cases. This will usually not happen in customer

networks. Fix by flapping the MPLS TE FRR back up tunnel.

• CSCtf50862

Symptoms: Upon the router bootup in steady state, MAC addresses (both core and access side) are

flushed out periodically resulting in traffic flooding across all ports.

Conditions: The symptom is observed when MAC OOB is enabled by the following command:

mac-address-table synchronize.

If you have EVC-PC on access, VPLS in the core, and traffic flow is asymmetric, this can result in

flooding of the traffic from access to core and core to access.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 397 398

Comentarios a estos manuales

Sin comentarios

Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 24

Comentarios a estos manuales

Relacionado con productos y manuales para Redes Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch