Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 33

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
CSCtg83578
Symptoms: When you disable and enable the mls qos rewrite ip dscp command, the set
functionality is not working.
Conditions: The symptom is observed with a policy-map with set operation, and when you execute
the no mls qos rewrite ip dscp and mls qos rewrite ip dscp in the global mode.
Workaround: Execute no mls qos and mls qos in the global config mode.
CSCtg91201
Symptoms: DHCP-added static routes get removed sometimes and the traffic towards the host gets
dropped.
Conditions: The symptom is observed with IP unnumbered relay and with a third party external
DHCP server. (This issue can also occur with an IOS DHCP server, but the probability is quite low.)
Workaround: There is no workaround.
CSCtg92587
None High CPU in the SNMP Engine process is observed every five minutes.
CSCtg94250
Symptoms: Removing address-family ipv4 vrf vrf (in router BGP) followed by no ip vrf vrf (where
“vrf” is the same) could result in a crash.
Conditions: The symptom is observed in a large VPNv4 scale setup, when applying the following
commands to the same VRF back-to-back:
1. no address-family ipv4 vrf vrf
2. no ip vrf vrf
3. ip vrf vrf
The trigger of the BGP crash is a result of a racing condition between event 1 and event 2.
Workaround: Since this is a racing condition, the workarounds are:
1. Not applying (1) before (2).
2. Give sufficient time for (1) to complete before applying (2).
CSCth01394
Symptoms: On a Cisco 7606 router that is running Cisco IOS Release 12.2(33) SRD3 with
SIP200/SPA-4XCT3/DS0, when you have ppp multilink interface(s) configured with member links
from same SPA (software based multilink) and you physically remove SPA, you will see that upon
executing the show ppp multilink command, the multilink interface still has reference for member
links. If you do the sh run int serialx/y command, you will get message interface not found.
Conditions: This issue is consistently reproducible.
Workaround: There is no workaround.
CSCth02479
Symptoms: Router crashes.
Conditions: The symptom is observed when the show upgrade fpd file tftp: command is performed.
Workaround: Copy the fpd file to “disk:” and then perform the show upgrade fpd file disk:
command.
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