Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Uživatelský manuál stáhnout pdf (Strana 293)

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

OL-10394-05 Rev. R0

• CSCsl94263

Symptoms: A Cisco 7500 series router may crash.

Conditions: This symptom occurs when SSO is configured on the Cisco 7500 router and when we

try to reconfigure an existing service policy.

Workaround: There is no workaround.

Further Problem Description: The router crashes when trying to reconfigure the service policy,

which is already configured on the router. The crash is seen when we try to configure the

random-detect dscp-based command.

• CSCsl94499

Symptoms: When applying the mpls ip under the top configuration mode command, the standby RP

may be reset and the active RP generates the following error message:

Dec 27 09:14:43.095 PST: %RTMGR-3-TOPO_SYNC_ERR: Failed to duplicate active topology

on standby. (rc=15), id 1E000000 {default:ipv6:base}

Conditions: The problem happens on a Cisco 7600 series router when applying the no mpls ip top

configuration mode command.

Workaround: Enable the IPv6 routing explicitly via the ipv6 unicast- routing command before

issuing the no mpls ip command.

Further Problem Description: There is a synchronization (or timing) issue on IPv6 routing shutdown

between active and standby RPs.

• CSCsl94621

Symptoms: For the ATM multi-VLAN to VC feature, when the remote end of the link flaps, the

spanning tree instance for the VLAN gets lost, and traffic is no longer forwarded.

Conditions: Occurs when the ATM VC is the only instance of that VLAN in the router.

Workaround: If there is at least one other port on the same VLAN, spanning-tree remains, and there

is no impact. Configure a switchport and allow all VLANs that are in the ATM multi-vlan VC.

• CSCsl94785

Symptoms: If multiple interfaces on a linecard are configured for REP segments, on reload some of

the interfaces configured for REP segments may be lost.

Conditions: The symptom is observed when multiple interfaces on a linecard are configured for REP

segments.

Workaround: Reconfigure the REP segments on those interfaces.

• CSCsl95249

Symptoms: Device crashes after performing a sequence of steps that is not typical in customer

environments.

Conditions: The issue would require many steps such as no atm sub if; reconfiguring it; attaching

a policy-map to atm main interface twice and then an online insertion and removal (OIR) operation.

Workaround: There is no workaround.

• CSCsl95609

Symptoms: When a VRF which has BGP multipath that has been defined using the address-family

ipv6 vrf vrf-name command is deleted, alignment tracebacks may be seen on the console.

Conditions: The symptom is observed on a VPNv6 with BGP multipath defined.

Workaround: There is no workaround.

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