Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 308

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754
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Workaround: Remove the PPP multilink commands from the E1 interface, and remove the multilink
interface. Then fail over to the standby.
CSCsm36500
Symptoms: Tracebacks are seen. These tracebacks have no functional impact.
Conditions: Occurs on after online insertion and removal (OIR) of the 5x1 GE SPA of the SIP-600
on which multiple subinterfaces with IPv6 address have been created. This is a cosmetic issue and
has no functional impact. The issue will eventually correct itself.
Workaround: There is no workaround.
CSCsm36745
Symptoms: SSM mapping may cause slow IGMP processing.
When SSM Mapping for mapping IGMPv1/v2 reports to PIM-SSM is configured using ip igmp
ssm-map enable, the IGMP process may slow down and not service all incoming reports and not
send out periodic queries.
Conditions: By default, when SSM mapping is configured, the router will try to resolve via DNS any
mappings that are not statically configured. When the name server does not respond timely to the
DNS lookups, which could be to non- or misconfiguration, name server down etc, other incoming
IGMP reports will be delayed until the lookup has timed out. This also affects IGMP reports that are
not supposed to be mapped.
Workaround: - Create static mappings for all reports that are to be mapped - Make sure that all to be
mapped IGMP reports are present in the configured name server - Disable DNS lookup using: no ip
igmp ssm-map query dns
CSCsm37834
Symptoms: ES20 or SIP600 cards may reset with the following error:
%EARL-DFC7-2-SWITCH_BUS_IDLE: Switching bus is idle for 5 seconds. The card grant is 0
Conditions: The symptom is observed when performing an RPR switchover or "test crash" on the
active supervisor. It is seen in HFS-enabled chassis (such as S-chassis or infinity chassis).
Workaround: There is no workaround.
Further Problem Description: The problem occurs because of a loss of synchronization on the switch
fabric. This results in the loss of EARL heartbeat packets causing the EARL recovery process to
complain that a bus stall has occurred when it finds that no heartbeat packets have been received.
CSCsm38142
Symptoms: Potential memory leak on Cisco 7600 RP due to software defect in 12.2SRB.
Conditions: Occurs in routers running Cisco IOS Release 12.2SRB. It is observed if any QoS policy
(service-policy command) is configured on the router. It only impacts distributed platforms such as
the Cisco 7600. Eventually the router could exhaust all available memory.
Workaround: There is no workaround.
CSCsm39002
Symptoms: "Any-phy" of serial interface changes after BERT
Conditions: "Any-phy" changes after running FPGA BERT for an interface if another interface on
the same SPA having a lower "any-phy" value is deleted. Tracebacks are seen after provisioning new
channel group.
Workaround: Reload the SPA.
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