This article explains the limitation in using the no-concatenate knob under the [chassis fpc <> pic <>] hierarchy. The no-concatenate command is only for channelized Modular Interface Cards (MICs) and should not be used on unsupported configurations.
no-concatenate
Under the edit chassis fpc <> pic <> hierarchy, there is an option to use no-concatenate, as follows:
Please refer to the following link for the knob:
[edit] lab@R1# show chassis fpc 4 { pic 0 { no-concatenate; } } [edit] lab@R1#
The no-concatenate command is used to channelize an OC3 Physical Interface Card (PIC) to different SONET interfaces. In the MX Series MIC-3D-8OC3OC12-4OC48 MIC, the use of this command could lead to adverse behavior. It can cause the Modular Interface Card (MIC) to reset every time a config change to any other MIC in that Flexible PIC Concentrator (FPC) is made:
[edit] lab@R1# run show chassis pic pic-slot 0 fpc-slot 4 FPC slot 4, PIC slot 0 information: Type MIC-3D-8OC3OC12-4OC48 State Online PIC version 1.14 Uptime 2 minutes, 24 seconds PIC port information: Fiber Xcvr vendor Wave- Xcvr Port Cable type type Xcvr vendor part number length Firmware 0 GIGE 1000SX MM FINISAR CORP. FTLF8519P2BNL-J1 850 nm 0.0 Multirate Mode Enabled [edit] lab@R1# run show chassis pic pic-slot 0 fpc-slot 4 FPC slot 4, PIC slot 0 information: Type MIC-3D-8OC3OC12-4OC48 State Online PIC version 1.14 Uptime 2 minutes, 24 seconds PIC port information: Fiber Xcvr vendor Wave- Xcvr Port Cable type type Xcvr vendor part number length Firmware 0 GIGE 1000SX MM FINISAR CORP. FTLF8519P2BNL-J1 850 nm 0.0 Multirate Mode Enabled [edit] lab@R1# [edit] lab@R1# run show chassis pic pic-slot 3 fpc-slot 4 FPC slot 4, PIC slot 3 information: Type 1x 10GE XFP State Online PIC version 2.19 Uptime 3 days, 22 hours, 51 minutes, 48 seconds PIC port information: Fiber Xcvr vendor Wave- Xcvr Port Cable type type Xcvr vendor part number length Firmware 0 10GBASE SR MM JDSU PLRXXL-SC-S43-5A 850 nm 0.0 [edit] lab@R1# run show interfaces terse xe-4/3/0 Interface Admin Link Proto Local Remote xe-4/3/0 up up [edit] lab@R1# set interfaces xe-4/3/0 disable [edit] lab@R1# commit commit complete [edit] lab@R1# delete interfaces xe-4/3/0 disable [edit] lab@R1# commit commit complete [edit] lab@R1# run show chassis pic pic-slot 0 fpc-slot 4 FPC slot 4, PIC slot 0 information: Type MIC-3D-8OC3OC12-4OC48 State Online PIC version 1.14 Uptime 9 seconds Multirate Mode Enabled
As can be seen from the above, any config change to PIC 3 on the same FPC causes the PIC 0 to reset. This is an effect of using an unsupported configuration on the PIC. The no-concatenate command is only for channelized MICs like MIC-3D-8CHOC3-4CHOC12, MIC-3D-4CHOC3-2CHOC12 or MIC-3D-8CHDS3-E3-B. The MICs MIC-3D-8OC3OC12-4OC48 and MIC-3D-4OC3OC12-1OC48 do not support this configuration and should never be used