Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Uživatelský manuál Strana 242

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688
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Conditions: The symptom is observed after online insertion and removal (OIR) of the DFC module
in the switch.
Workaround: There is no workaround.
CSCsg78010
Symptoms: The show sss session detailed command displays traffic for the default traffic class (TC)
as "Unmatched Packets (dropped)."
Conditions: This symptom is observed irrespective of the configuration; for example, whether the
default TC is set to forward or drop the traffic.
Workaround: There is no workaround.
CSCsg87559
Symptoms: A client that has IPv6 for DHCP implemented may not receive a correct prefix.
Conditions: This symptom is observed on a Cisco 7200 series that functions as a DHCP server, that
has IPv6 for DHCP implemented, and that has the allow-hint DHCP IPv6 interface server
configuration enabled. Note that the symptom is platform-independent.
Workaround: There is no workaround.
CSCsg92473
Symptoms: The netflow shortcuts created are cleared before the full capacity of 128k flows (PFC3B)
and 256k flows (PFC3BXL) is reached and before the reflexive ACL ageing timers expire. The full
capacity is not achieved and active flows may start to get purged.
Conditions: The symptoms are observed when either the traffic is from 128k or 256k different
sources.
Workaround: There is no workaround.
CSCsg93274
Symptoms: When a switchover occurs on the standby PRE, the router does not sent a
“ciscoRFSwactNotif” notification.
Conditions: This symptom is observed on a Cisco 10000 series when the CISCO-RF-MIB traps are
enabled for host that are configured to receive traps, that is, for valid SNMP hosts that have the
snmp-server enable traps rf command enabled.
Workaround: Configure SNMPv2 "informs."
Alternate Workaround: Use a static ARP configuration for the trap handlers that are configured via
the snmp-server host command to increase the chances that the first few traps that are sent by the
Cisco 10000 series are received by these trap handlers.
CSCsg98535
Symptoms: The clear ipv6 pim topology command may crash the router.
Conditions: The symptom is observed when using the clear ipv6 pim topology command on the
router with 30,000 (S, G) multicast (mroute) state.
Workaround: Do not use clear ipv6 pim topology when the router has 30,000 mroute state. Rather,
wait for three or more minutes for the mroute state to timeout and the router will remove the entry
from the mroute table.
CSCsh29217
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