Cisco ASR 903 Release Notes page 66

Caveats in Cisco IOS XE 3.6S Releases
Symptoms: The router displays the following message when executing a Stateful Switchover
(SSO): %TRANSCEIVER-3-CHECKSUM_ERROR
Conditions: Occurs intermittently when the router is in SSO mode and performing a switchover
between RSPs. The console displays this message repeatedly on the new active RSP.
Workaround: There is no workaround.
• CSCty26726
Symptoms: The IOS kernel crashes.
Conditions: Occurs following a reload on a dual RSP system.
Workaround: Power cycle the router.
CSCty29449
•
Symptoms: The router crashes.
Conditions: The issue can occur when you shut down and reenable an interface module.
Workaround: There is no workaround.
CSCty35365
•
Symptoms: The router drops traffic passing across ATM MPLS layer 2 virtual circuits (VCs).
Conditions: Occurs when you increase the scale above 100 VCs.
Workaround: There is no workaround.
CSCty37479
•
Symptoms: The router experiences line protocol flapping on serial interfaces.
Conditions: Occurs with the A900-IMA4OS and A900-IMA16D interface modules when the router
is passing high volumes of HDLC or PPP traffic.
Workaround: Configure the no keepalive command on serial interfaces.
• CSCty47288
Symptoms: The router does not use a standby BITS clock source even when show commands
indicate that the router has selected this clock source.
Conditions: Occurs when you configure a standby BITS clock source as an input clock source.
Workaround: There is no workaround.
CSCty48493
•
Symptoms: The ASR 903 may reload with when acting as a hybrid clock.
Conditions: Occurs under the following conditions:
–
–
–
Workaround: There is no workaround; however the issue occurs rarely.
CSCty49157
•
Symptoms: Some members in an IMA group do not become active even though the interface
controllers are up.
Conditions: Occurs when you perform an OIR on a remote line card or when the standby RSP
becomes the active RSP.
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
14
The PLL mode is TOP CLIENT
The session is in ACQUIRING state
You issue the no ptp clock or domain 0 hybrid command.
Chapter Restrictions and Caveats in Cisco IOS XE 3.6S Releases
OL-26630-08