Troubleshooting guide

Release Notes for Cisco ONS 15454 Release 7.0.2

OL-11368-01

Caveats

CSCds02031 and CSCsb49501 E1000-2/E100

When you drop two 3c multicard EtherSwitch circuits onto an Ethernet card and delete only the first

circuit, you should not provision STS-1 circuits to the card without first deleting the remaining STS-3c

circuit. If you attempt to create an STS-1 circuit after deleting the first STS-3c circuit, the STS-1 circuit

will not work and no alarms will indicate this condition. Under rare conditions, this could trigger a TCC

reset. To avoid a failed STS-1 circuit and other possible problems, delete the second STS-3c prior to

creating any STS-1 circuit.

CSCed96068

If an ML-Series card running Software Release 4.6.2 or later is interoperating with an ML-Series card

running Software Release 4.6.0 or 4.6.1, then the pos vcat resequence disable command must be added

to the configuration of the ML-Series card running R4.6.2 or later. For documentation of this command,

consult the Ethernet Card Software Feature and Configuration Guide.

CSCec52443

On an ML-series RPR ring circuit deletion or creation causes an approximately 200 ms traffic loss. To

avoid this issue, from the ML-series CLI, perform a “shutdown” on both ends of the circuit prior to

circuit changes. This issue will not be resolved.

CSCec52372

You must issue a “shut” command to both ends of a POS circuit before placing the circuit OOS, and issue

IS before a “no shut” command. Placing a POS circuit OOS without shutting down can cause long traffic

hits. This issue will not be resolved.

CSCec51252

You must issue a “shut” on both ends of affected POS circuits before performing a maintenance action

on those circuits. If a POS circuit is restored without first issuing the shut commands, one end of the

circuits could come up before the other. During that time, traffic is lost because the other end is not up

yet. This issue will not be resolved.

CSCea46580

SPR input counters do not increment on a BVI with an SPR interface. This issue will not be resolved.

CSCea35971

A monitor command may disappear from the configuration after a TCC reboots. To avoid this issue, use

the exec command, “terminal monitor,” instead (a minor drawback is that this command applies to all

VTYs), or, alternatively, reapply the monitor command after connection is lost. This is as designed.