Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 35

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481
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Workaround: There is no workaround.
CSCth64439
Symptoms: With different image versions and with “issu image-version comp disable” configured,
the standby comes up in SSO mode instead of RPR.
Conditions: The symptom is observed when “issu image-version comp disable” is configured.
Workaround: Enable image-version compatibility check (using issu image-version comp enable).
CSCth66700
Symptoms: (S,G) expiry timer is updated again about two minutes after stopping the (S,G) stream.
Conditions: The symptom is observed with the (S,G) expiry timer.
Workaround: There is no workaround.
Further Problem Description: The behavior of the expiry timer is not changed even if you change
the value of mls ip muticast flow-stat-timer.
CSCth69504
Symptoms: A Cisco 7600 series router may experience a small buffer leak in the small buffer pool
on SP.
Conditions: The symptom is observed on a Cisco 7600 series router that is running Cisco IOS
Release 12.2(33)SRD configured with IGMP snooping.
Workaround: Disable IGMP snooping either globally or per VLAN.
CSCth71899
Symptoms: An SSO causes a met3 VLAN to become 0.
Conditions: The symptom is observed with 600 S,G distributed with OIFs over SVIs and L3
interfaces and after an SSO. It happens only on triggering joins and leaves for the groups, on the
CFC card.
Workaround: There is no workaround.
CSCth72565
Symptoms: The reachability of the PE2 router’s loopback is lost from PE1 after an interface flap in
the core. The LSP toward PE2 “breaks” due to data plane programing error (wrong labels).
Conditions: The symptom is observed with MPLS with the presence of ECMP. The PE1 has two
uplinks to core routers. In a steady state there is no ECMP between PE1 and PE2. When a link is
lost in the P-core (link flap or shut and no shut) there is ECMP between PE1 and PE2. After the
link flap between the two P routers in the core, PE1 is losing connectivity to PE2.
Workaround 1: Use the clear ip route on the affected IP address.
Workaround 2: Avoid ECMP by altering link cost.
CSCth72765
Symptoms: Configuring “mls qos protocol hsrp police rate” does not enable policing of HSRPv2
packets.
Conditions: The symptom is observed on a Cisco 7600 series router when “mls qos protocol hsrp
police rate” is configured.
Workaround: There is no workaround.
CSCth84995
Symptoms: Router may reload when performing an ISSU upgrade or downgrade.
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