PTX3000 Switch Interface Boards
PTX3000 Switch Interface Board Description
The PTX3000 contains nine Switch Interface Boards (SIBs) located at the center of the chassis in the slots labeled SIB0 through SIB8 (left to right). SIBs are hot-insertable and hot-removable.
SIBs create the switch fabric for the PTX3000.
FPC-SFF-PTX-T FPCs are not supported in a PTX3000 with SIB3-SFF-PTX SIBs.
Third-generation FPCs (FPC3-SFF-PTX) are supported only in a PTX3000 with SIB3-SFF-PTX SIBs. Third-generation FPCs and FPC-SFF-PTX-P1-A first-generation FPCs can interoperate with each other in the same system.
SIBs Supported
The PTX3000 supports the SIBs listed in Table 1.
Spare Model Number |
First Supported Junos OS Release |
First-Generation FPCs First Supported Junos OS Release |
Third-generation FPCs First Supported Junos OS Release |
---|---|---|---|
SIB-SFF-PTX-240-S |
13.2R2 |
FPC-SFF-PTX-P1-A: 13.2R2 FPC-SFF-PTX-T: 14.1 |
Not supported |
SIB3-SFF-PTX-S |
15.1F6 16.1R2 |
FPC-SFF-PTX-P1-A: 15.1F6, 16.1R2 FPC-SFF-PTX-T: Not supported |
15.1F6, 16.1R2 |
SIB Components
Figure 1 shows a SIB. Each SIB-SFF-PTX-240 weighs 1.5 lb (0.7 kg). Each SIB3-SFF-PTX weighs 1.9 lb (0.9 kg).

1 — OK, FAIL, and ACTIVE LEDs | 2 — ONLINE/OFFLINE button |
Each SIB consists of the following components:
Switch fabric ASICs
High-speed links to each FPC
SIB ONLINE/OFFLINE button, located on the SIB faceplate
Three LEDs located on the SIB faceplate that display the status of the SIB
PTX3000 Switch Interface Board LEDs

1 — OK LED | 3 — ACTIVE LED |
2 — FAIL LED |

1 — OK LED | 3 — ACTIVE LED |
2 — FAIL LED |
The status LEDs are located above the ONLINE/OFFLINE button. See Figure 2 and Figure 3. Table 2 describes the functions of these LEDs.
Label |
Color |
State |
Description |
---|---|---|---|
ACTIVE |
Green |
On steadily |
SIB is actively passing traffic. |
– |
Off |
SIB is either offline or not actively passing traffic. |
|
OK |
Green |
On steadily |
SIB is functioning normally. |
– |
Off |
SIB is offline or not seated properly. |
|
FAIL |
Yellow |
On steadily |
SIB has failed. |
– |
Off |
No faults have been detected for the SIB. |