Cisco ASR 900 Series - Packet Handling Along Return Path with an IP MPLS Router Alert; Other MPLS LSP Ping and Traceroute Command Options

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Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter Restrictions and Caveats in Cisco IOS XE 3.6S Releases
Caveats in Cisco IOS XE 3.6S Releases
– You set the MTU to a higher value on an MLP bundle.
Workaround: There is no workaround.
• CSCty61660
Symptoms: The Cisco ASR 903 Router displays a core dump file.
Conditions: Occurs when the remote PE device is reloaded while running VPLS-TP.
Workaround: There is no workaround.
• CSCty66871
Symptoms: The router stops forwarding traffic across one or more EoMPLS virtual circuits (VC)s.
Conditions: Occurs when you perform a shut/no shutdown on the MPLS TE tunnel carrying the VC.
Workaround: Issue the clear xconnect command on the VC.
• CSCty70034
Symptoms: The router floods all EFPs in the sam e split horizon group with IGMP join messages.
Conditions: Occurs when the router is sending an IGMP join containing a dot1q tag for one EVC.
Workaround: None.
• CSCty72251
Symptoms: The router drops traffic following a reload.
Conditions: Occurs when you reload the router while running a VRF configuration.
Workaround: Remove the configuration, reload the router, and re-apply the configuration.
• CSCty72901
Symptoms: Some CEM groups do not function correctly.
Conditions: Occurs when you configure more than 196 CEM groups on the T1/E1 or OC-3 interface
module.
Workaround: There is no workaround; avoid configuring more than 196 CEM groups.
• CSCty73142
Symptoms: An IPC Init failure occurs during downgrade, which makes the standby reload
continuously.
Conditions: Occurs when you perform an ISSU downgrade from IOS XE 3.6 to IOS XE 3.5.1 or 3.5.
Workaround: There is no workaround.
• CSCty73362
Symptoms: The router experiences CPP download failures when sending IGMP join messages.
Conditions: Occurs when the router is configured with a trunk EFP in SM mode on the access side
and is sending IGMP join messages to more than 1970 multicast groups.
Workaround: There is no workaround.
• CSCty73365
Symptoms: The router drops traffic on ATM subinterfaces using layer 2 PVCs.
Conditions: Occurs when you create 255 or more ATM PVCs.
Workaround: There is no workaround.