Fabric Plane Management on AS MLC Modular Carrier Card Overview
The Application Services Modular Line Card (AS MLC) provides high application throughput and storage space, and is designed to run services on the MX240, MX480, and MX960 routers. The AS MLC consists of the following components:
- Application Services Modular Carrier Card (AS MCC)
- Application Services Modular Processing Card (AS MXC)
- Application Services Modular Storage Card (AS MSC)
The AS MCC plugs into the chassis and provides the fabric interface.
An MX960 router can support three Switch Control Boards (SCBs) or six fabric planes. The AS MCC supports six fabric planes. An MX240 or MX480 router can support upto two SCBs or two fabric planes. The AS MCC at any time can provide connectivity to only six of the eight fabric planes. Fabric planes 1 and 5, and 3 and 7 use shared physical links. So between fabric planes 1 and 5 only one plane can be active. Similarly between fabric planes 3 and 7, only one plane can be active.
This behavior impacts the output of fabric-related monitoring commands on MX240 and MX480 routers with AS MCCs.
The show chassis fpc pic-status command displays the output for an MX480 router with an AS MCC:
user@host>show chassis fpc pic-statusSlot 2 Online MPC Type 1 3D Q Slot 1 Online AS-MCC PIC 0 Online AS-MSC PIC 2 Online AS-MXC Slot 4 Offline MPC 3D 16x 10GE Slot 5 Offline AS-MCC
In the show chassis fpc pic-status command output, Slot 1 and 5 are AS MCC, PIC 0 is the AS MSC, and PIC 2 is the AS MXC.
The show chassis fabric fpcs command displays the output on an MX480 router with an AS MCC.
user@hostshow chassis fabric fpcsFPC 2
PFE #0
Plane 0: Plane enabled
Plane 1: Plane enabled
Plane 2: Plane enabled
Plane 3: Plane enabled
Plane 4: Plane enabled
Plane 5: Plane enabled
Plane 6: Plane enabled
Plane 7: Plane enabled
FPC 4
PFE #0
Plane 0: Plane enabled
Plane 1: Plane enabled
Plane 2: Plane enabled
Plane 3: Plane enabled
Plane 4: Links ok
Plane 5: Links ok
Plane 6: Links ok
Plane 7: Links ok
PFE #2
Plane 0: Plane enabled
Plane 1: Plane enabled
Plane 2: Plane enabled
Plane 3: Plane enabled
Plane 4: Links ok
Plane 5: Links ok
Plane 6: Links ok
Plane 7: Links ok
FPC 5
PFE #0
Plane 0: Plane enabled
Plane 1: Plane enabled
Plane 2: Plane enabled
Plane 3: Plane enabled
Plane 4: Plane enabled
Plane 5: Unused
Plane 6: Plane enabled
Plane 7: Unused
In the show chassis fabric fpcs command output, FPC 5 is the AS MCC.
The show chassis fabric plane command displays the output on an MX480 router with an AS MCC.
user@host>show chassis fabric planeFabric management PLANE state
Plane 0
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Links ok
Plane 1
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Links ok
Plane 2
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Links ok
Plane 3
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Links ok
Plane 4
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Links ok
Plane 5
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Unused
Plane 6
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Links ok
Plane 7
Plane state: ACTIVE
FPC 2
PFE 0 :Links ok
FPC 4
PFE 0 :Links ok
PFE 2 :Links ok
FPC 5
PFE 0 :Unused
In the show chassis fabric plane output, FPC 5 is the AS MCC.
The term Unused in the output for the show chassis fabric fpcs and show chassis fabric plane command indicates that one fabric plane from each pair that share physical links (1 and 5, and 3 and 7) is inactive.
See Junos OS System Basics and Services Command Reference for more information.
