
687
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
• CSCsg27783
Symptoms: When an SVI is configured with VLAN ACL and Reflexive ACL and then an ingress
policy-map is applied on the same SVI, SP TCAM in ingress is programmed correctly but DFC
TCAM is programmed incorrectly.
Conditions: The symptoms are observed on a Cisco Catalyst 6000 Series Switch, or a Cisco 7600
series router that is running Cisco IOS Release 12.2SX, Release 12.2(33)SX, Release 12.2SR or
Release 12.2(33)SR and that has a DFC line card.
Workaround: Entering the shutdown command on the VLAN followed by the no shutdown will
bring the VLAN to the correct state.
• CSCsg39754
Symptoms: When DHCP snooping is configured on a VLAN, the redirect access list programmed
in TCAM permits a wide range of UDP ports from bootps/bootpc to 65xxx.
Conditions: UDP traffic to these destination ports (0x143, 0x243, 0xFF43) is being redirected to
Route Processor (RP). If "ip dhcp snooping limit" is not configured, then RP CPU goes to 100%.
Workaround: There is no workaround.
• CSCsg40885
Symptoms: A router crashes during an online insertion and removal (OIR) of a multilink interface.
Conditions: This symptom is observed on a Cisco 7200 series that is configured for MLP and PPP.
Workaround: Shut down the multilink interface before you perform an OIR.
• CSCsg42672
Symptoms: On a Cisco router running Cisco IOS Release 12.0(32)S4 and configured with BGP and
peer-groups, if the Fast Peering Session Deactivation feature is configured in the peer-group, the
router automatically configures on the command a route-map with the same name as the peer- group.
Conditions: Occurs with the following configuration sequence:
RR#conf t Enter configuration commands, one per line. End with CNTL/Z.
RR(config)#router /jointfilesconvert/422273/bgp 65001 RR(config-router)#neighbor rrs-client fall-over ? bfd Use
BFD to detect failure route-map Route map for peer route <cr>
RR(config-router)#neighbor rrs-client fall-over
RR#sh ru <snip> router /jointfilesconvert/422273/bgp 65001
neighbor rrs-client peer-group neighbor rrs-client remote-as 20959 neighbor rrs-client
update-source Loopback0 neighbor rrs-client fall-over route-map rrs-client <<<<<<<
the route-map does not exist.
Workaround: Configure the neighbor individually or use peer-templates.
• CSCsg59059
Symptoms: A device configured with Dynamic NAT (Network Address Translation) and Class B
NAT pool may reload unexpectedly.
Conditions: The symptom is observed when "ip nat pool" is configured with a prefix-length of 17,
and when 32766 or more netflow entries pass through the device. If the nat pool is cleared by using
the clear ip nat translation *, the device unexpectedly reloads. This does not affect Class C NAT
pools and NAT Overload configurations.
Workaround: There is no workaround.
• CSCsg72678
Symptoms: TCAM entries are not displayed for the interface when using the show tcam interface
acl command.
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