Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Uživatelský manuál Strana 12

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
CSCsz23099
Symptoms: A memory leak is experienced and a higher number of loadinfo is allocated, which can
be seen by using the show ip cef loadinfo command.
Conditions: The symptom is observed with a router that is running Cisco IOS
Release 12.2(33)SRD1 and that is configured with PBR with next-hop with reachablity that is
moving between one path and two paths.
Workaround: There is no workaround.
CSCsz87710
Symptoms: The RPF is enabled by default on a newly created SVI/loopback interface, which is
causing ping failure. See the following example:
switch(config)#int vlan 1103
switch(config-if)#mtu 9216
switch(config-if)#ip add
switch(config-if)#ip address 172.16.2.1 255.255.255.0
switch(config-if)# logging event link-status
switch(config-if)# mpls ip
switch(config-if)#no sh
switc#sh ip interface vlan 1103
Vlan1103 is up, line protocol is up
Internet address is 172.16.2.1/24
::: :::::::: :::::::::::::::::::::::
BGP Policy Mapping is disabled
Input features: uRPF, MCI Check <<<<<<<<<< RPF is enabled by default
Output features: IP Post Routing Processing, HW Shortcut Installation
Post encapsulation features: MTU Processing, IP Protocol Output Counter,
IP
Sendself Check, HW Shortcut Installation
Router#ping 172.16.2.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Conditions: This symptom occurs when RPF is enabled on the interface for the first time. Delete the
interface. Create the interface again with the same name.
Workaround: There is no workaround.
CSCta18596
Symptoms: The following tracebacks and messages appear on the console logs:
%ALIGN-3-SPURIOUS: Spurious memory access made at 0x61AB0C78 reading 0x22
%ALIGN-3-TRACE: -Traceback= 61AB0C78 623849E8 62384A58
607CCD8C 61372428 613769FC 61376E68 613773C4
In addition, you may see instability of the serial interfaces (i.e.: when an interface is configured, it
stays up for a while and then goes down).
Conditions: The symptoms are observed when upgrading to Cisco IOS Release 12.2(31)SB14 on a
Cisco 7200 series router only on the interfaces configured with frame-relay fragmentation
configured on the main interface.
Workaround 1: Use fragmentation in the map-class with FRTS (i.e.: configure “frame-relay
traffic-shaping” under the main interface and configure fragmentation under the map-class and
apply the map-class to PVC). For example:
interface Serial1/0.1/1/4/2:0
no ip address
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