This article provides various PIC and port speed configuration options on IOC4.

Port Speed Combinations in PIC-MODE and Port-speed mode.

IOC4 supports an aggregate bandwidth of 480 Gbps, and each of the two PICs supports a bandwidth limit of 240 Gbps.

We can choose to configure all supported ports of the SRX5K-IOC4-MRATE to operate at the same supported speed or configure all the ports at different supported speeds.

Port speed combination in PIC Mode. 

1) 2*100G

2) 6*40G

3) 6*4*10G

Note: If configured at the PIC level, all the supported ports operate at the configured speed.

Note: Ports 2 and 5 of both the PICs support port speed of 100 Gbps

Ports speed combination in Port-speed mode.

1) All combinations in PIC mode.

2) N*40G + M*N*10G, N+M <= 6

3) 1*100G + N*40G + M*$*10G, N+M <=3

4) 2*100G +1*40G

5) 2*100G + 1*4*10G

Note: The ports can be configured to operate at different  (supported) speed.

Below are the examples to configure at PIC level and Port-speed level.

Example1: Configure PIC to operate at 40G speed

[edit chassis fpc 5 pic 0]
root@b01-17# show
pic-mode 40G;

Example2: Configure ports to operate at different speed,

[edit chassis fpc 5 pic 0]
user@host# show 
port 0 {
    speed 10g;
}
port 1 {
    speed 10g;
}
port 2 {
    speed 100g;
}
port 3 {
    speed 40g;
}

Note: FPC restart is required for speed change to take effect.

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