Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario descargar pdf (Pagina 300)

746

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

OL-10394-05 Rev. R0

Conditions: The symptoms are observed in a port channel interface with two or more member links

and where EVCs are added under the port channel interface. Attempting to change the QOS

parameters under the policy map will result in changes to the primary member link only.

Workaround: Enter the shutdown command followed by the no shutdown command on the PC

interface and problem is corrected.

• CSCsm10603

Symptoms: L2TP sessions flap both when idle and when traffic is being passed.

Condition: Occurs on an internal version of Cisco IOS Release 12.4T only on the Cisco 1760

platform and while the voluntary tunneling feature is invoked.

Workaround: There is no workaround.

• CSCsm12247

Symptoms: A Cisco IOS router configured for WCCP may stop redirecting traffic following a

change in topology.

Conditions: The router must be configured for WCCP redirection using the hash assignment method.

When there is only a single appliance in the

service group, the loss of hash assignment details is permanent.

However with multiple appliances in the group, the loss of assignment information is transitory; the

router soon recovers.

Workaround: To recover the assignment details, the WCCP configuration needs to be removed and

re-added to the router. Use the no ip wccp service command followed by ip wccp service args

command.

Further Problem Description: The changes address also situation where some wccp clients are

sending modified weight field in the wccp message and this way create a topology change situation.

• CSCsm12664

Symptoms: Feature push for VRF-tx does not work.

Conditions: On the service profile, a "vrf-id=..." is configured. this is pushed onto a session. This

attribute is ignored.

Workaround: Instead of doing the push through the RADIUS server, do the push using the SESM.

• CSCsm12692

Symptoms: IPv6 traffic is limited due to the rate-limiters when RP switchover occurs. The show

mpls forwarding-table command indicates the duplicate label entries for IPv6 at the same time.

Finally, the limited IPv6 traffic and the duplicated label entries are restored about 10 minutes later.

Conditions: Occurs when RP switchover occurs with IPv6 VPN over MPLS (6VPE) configuration.

Workaround: There is no workaround.

Further Problem Description: Additionally, IPv4 entries work fine, and IPv4 traffic is not limited

due to RP switchover.

• CSCsm13263

Symptoms: The router may crash with a bus error while executing the show ip arp interface-name

command.

Conditions: This symptom occurs when two executive processes are initiated by two different telnet

sessions. One process is doing show ip arp interface while the other process is doing no ip address

or ip address ip address under the configuration mode. Both commands are accessing the same

interface. There is a chance that the show ip arp command will cause the system crash.

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