
583
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
• CSCsu03229
Symptoms: On the standby provider edge (PE) aggregation device, when label allocation fails, the
box can crash upon retry.
Conditions: Occurs in redundancy mode in PE aggregation device configured for tunnel stitching.
Workaround: There is no workaround.
• CSCsu04088
Symptoms: With unidirectional Ethernet (UDE) enabled on ES20 port, UniDirectional Link
Detection (UDLD) gets disabled. But on converting the port from L3 to L2 (or vice versa) or on
shut/no shut of interface, UDLD is enabled again on the interface. Once UDLD gets enabled, due to
the UDE feature, the port is detected as unidirectional and put to err-disabled state.
Conditions: Occurs on ES20 ports configured for both UDE and UDLD.
Workaround: Disable UDLD on the port.
• CSCsu04360
Symptoms: Acct-Time-Delay and Tunnel-Link-Stop records are missing from L2TP network server
(LNS).
Conditions: Occurs when using radius server for authentication.
Workaround: There is no workaround.
• CSCsu04473
Symptoms: Upon the first SSO switchover triggered with the redundancy force-switchover
command, the traffic stops on the ATM N-to-1 VCC pseudowires configured with cell-packing in
the direction from the MWR towards the 7600 SPA-4XOC3-ATM interface. Traffic recovers
normally in the other direction.
Conditions: Occurs on a Cisco 7600 S-series equipped with dual SUP720-3BXL. The problem is
seen only when cell-packing is enabled on the N-to-1 VCC pseudowires and when APS (MR-APS)
is configured on the ATM OC3 interface of the Cisco 7600 SPA-4XOC3-ATM.
Workaround: Disable cell-packing on the ATM N-to-1 VCC pseudowires or alternatively disable
APS on the SPA-4XOC3-ATM interface.
• CSCsu05525
Symptoms: After removing the “default-originate” configuration, the default-route is not
withdrawn.
Conditions: Occurred on a router running Cisco IOS Release 12.2SR.
Workaround: Clear the session to remove the configuration.
• CSCsu08935
Symptoms: BGP as-override does not work properly on a PE to overwrite the AS in the AS4_PATH.
Conditions: When a 4 byte CE is peered to a 2 byte capable PE using AS 23456 and the command
as-override is configured on the neighbor, the PE router does not override the AS in the AS4_PATH
with its own AS number, mapped to 4 bytes.
Workaround: Use “allowas-in” on the CE.
• CSCsu09663
Symptoms: Router crashes when scaling DHCP sessions on Cisco Intelligent Services Gateway
(ISG).
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