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Ethernet IQ2 PIC RTT Delay Buffer Values

The following table shows the round-trip time (RTT) delay buffer values for IQ2 PICs, which are nonstandard and vary by PIC type and direction. The values are rounded up slightly to account for oversubscription.

Table 1: RTT Delay Buffers for IQ2 PICs

IQ2 PIC Type

Ingress Buffer (ms)

Egress Buffer (ms)

4–port Gigabit Ethernet (Type 1)

200

300

8–port Gigabit Ethernet (Type 2)

175

200

8–port Gigabit Ethernet (Type 3)

35

225

1–port 10–Gigabit Ethernet (Type 3)

25

190