Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 1203
Description, Behavior at Peer Up, Behavior During Run, Action to Take, Verify the VLT LAG ID is
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Description Spanning tree mismatch at global level Behavior at Peer Up Behavior During Run Time Action to Take brief commands to view the VLT port channel status information. All VLT port channels go down on both VLT peers. A syslog error message is generated. No traffic is passed on the port channels. A one-time informational syslog message is generated. During run time, a loop may occur as long as the mismatch lasts. To resolve, enable RSTP on both VLT peers. Spanning tree mismatch at port level System MAC mismatch Unit ID mismatch Version ID mismatch VLT LAG ID is not configured on one VLT peer VLT LAG ID mismatch A syslog error message is A one-time informational Correct the spanning tree generated. syslog message is configuration on the generated. ports. A syslog error message and an SNMP trap are generated. A syslog error message and an SNMP trap are generated. Verify that the unit ID of VLT peers is not the same on both units and that the MAC address is the same on both units. The VLT peer does not boot up. The VLTi is forced to a down state. A syslog error message is generated. The VLT peer does not boot up. The VLTi is forced to a down state. A syslog error message is generated. Verify the unit ID is correct on both VLT peers. Unit ID numbers must be sequential on peer units; for example, if Peer 1 is unit ID "0", Peer 2 unit ID must be "1'. A syslog error message and an SNMP trap are generated. A syslog error message and an SNMP trap are generated. Verify the Dell Networking OS versions on the VLT peers is compatible. For more information, refer to the Release Notes for this release. A syslog error message is generated. The peer with the VLT configured remains active. A syslog error message is generated. The peer with the VLT configured remains active. Verify the VLT LAG ID is configured correctly on both VLT peers. The VLT port channel is brought down. A syslog error message is generated. The VLT port channel is brought down. A syslog error message is generated. Perform a mismatch check after the VLT peer is established. Virtual Link Trunking (VLT) 1203
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-
1,186
-
1,187
-
1,188
-
1,189
-
1,190
-
1,191
-
1,192
-
1,193
-
1,194
-
1,195
-
1,196
-
1,197
-
1,198
-
1,199
-
1,200
-
1,201
-
1,202
-
1,203
-
1,204
-
1,205
-
1,206
-
1,207
-
1,208
-
1,209
-
1,210
-
1,211
-
1,212
-
1,213
-
1,214
-
1,215
-
1,216
-
1,217
-
1,218
-
1,219
-
1,220
-
1,221
-
1,222
-
1,223
-
1,224
-
1,225
-
1,226
-
1,227
-
1,228
-
1,229
-
1,230
-
1,231
-
1,232
-
1,233
-
1,234
-
1,235
-
1,236
-
1,237
-
1,238
-
1,239
-
1,240
-
1,241
-
1,242
-
1,243
-
1,244
-
1,245
-
1,246
-
1,247
-
1,248
-
1,249
-
1,250
-
1,251