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FPC Numbering for Interfaces in TXP-T4000-3D Configuration

 

A routing matrix with the TXP-T4000-3D configuration can include up to four T4000 routers (line-card chassis) that are assigned even numbers (0, 2, 4, and 6). In the Junos OS CLI, lcc 0, lcc 2, lcc 4, and lcc 6 are used to refer to T4000 routers in a routing matrix with the TXP-T4000-3D configuration. Each T4000 router can contain up to eight Flexible PIC Concentrators (FPCs) in FPC hardware slots labeled 0 through 7.

In the Junos OS CLI, an interface name has the following format:

When you specify the FPC number for a T4000 router in a routing matrix, Junos OS determines which T4000 router contains the specified FPC. Table 1 shows the basic correspondence between FPC hardware slot numbers that are labeled on the T4000 chassis, and routing matrix FPC numbers that are used in the Junos OS CLI.

Table 1: FPC Numbering for up to Four T4000 Routers in a Routing Matrix

T4000 Router

in a Routing Matrix (TXP-T4000 Configuration)

Basic Correspondence of FPC Numbering

FPC

Hardware Slot Numbers

Global

FPC Numbers

LCC 0

0–7

0–7

LCC 2

0–7

16–23

LCC 4

0–7

32–39

LCC 6

0–7

48–55

To easily convert an FPC hardware slot number in a specific LCC (T4000 router) in a routing matrix to the corresponding global FPC number (routing matrix FPC number), use the conversion chart shown in Table 2. You can use the converted FPC number to configure the interfaces on the TX Matrix Plus router in your routing matrix.

Table 2: FPC Numbering for up to Four T4000 Routers in a Routing Matrix Conversion Chart

Conversion Chart for FPC Numbering

 

 LCC 0 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-1/0/0, the global FPC number 1 refers to the FPC hardware slot 1 in the T4000 router lcc 0.

Global FPC Numbers

0

1

2

3

4

5

6

7

 

 LCC 2 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-16/2/0, the global FPC number 16 refers to the FPC hardware slot 0 in the T4000 router lcc 2.

Global FPC Numbers

16

17

18

19

20

21

22

23

 

 LCC 4 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-34/0/1, the global FPC number 34 refers to the FPC hardware slot 2 in the T4000 router lcc 4.

Global FPC Numbers

32

33

34

35

36

37

38

39

 

 LCC 6 

 

FPC Hardware Slot Numbers

0

1

2

3

4

5

6

7

 

Example: In the interface name xe-54/1/0, the global FPC number 54 refers to the FPC hardware slot 6 in the T4000 router lcc 6.

Global FPC Numbers

48

49

50

51

52

53

54

55

You can use a CLI operational command to display the numbers of the connected FPCs in a routing matrix. To display the FPC numbers in global numbering mode (0 through 55, as used to specify an interface name in a routing matrix) and the associated local numbering mode (LCC number and FPC physical slot number), you can use various forms of the show chassis location command. For more information, see Displaying Chassis Physical Locations for a Routing Matrix with a TX Matrix Plus Router.