ZyXEL Communications MSC1000G Series, User Manual

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Chapter 38 Troubleshooting
Management Switch Card User’s Guide
1114
• Make sure that IMA PVC, DTPVC and/or MGTPVC settings are configured properly and match
the settings configured on the peer IMA device.
The following table summerizes some cases according to the combination of Ne/Fe states and the
possible root causes.
Table 392
Common Causes of IMA Connection Problems
GROUP NE
STATE GROUP FE
STATE GROUP FAILURE
STATE
POSSIBLE ROOT CAUSE
startUp not Configured otherFailure The IMA group on the remote IMA device does not
exist.
blocked blocked blockedNe The IMA group on the local IMA device is disabled.
operational blocked blockedFe The IMA group on the remote IMA device is
disabled.
insufficientLinks insufficientLinks insufficientLinksNe One IMA link is down and that causes the local IMA
device to not have the number of links (configured
in
IMA > Group ) to move to the operational
state.
insufficientLinks not Cofnigured insufficientLinksNe • One or multiple E1 ports related to the links in
the IMA group are disabled and that causes the
local IMA device to not have the number of
links (configured in IMA > Group ) to move to
the operational state.
• One or both Tx and Rx links are unavailable
configAbortOther configAbortUnsu
pportedImaVersi
on
unknown The IMA group versions configured on both peers
do not match.
configAbortOther configAbortInco
mpatibleSymme
try
failedAssymetricFe The symmetry modes configured on both peers do
not match.