> # Cisco MDS 9222i Multiservice Modular Switch BB_Credit Buffers

> Table 14-13 lists the BB_credit buffer allocation for 18-port 4-Gbps Multiservice Modular switches.

> Table 14-13 18-Port 4-Gbps Fabric Switch BB_Credit Buffer Allocation Defaults
> BB_Credit Buffer Allocation Type | BB_Credit Buffers Per Port Group | BB_Credit Buffers Per Port Defaults
> --- | --- | ---
> | ISL1 | Fx Port
> User-configurable BB_credit buffers | 4509 | 250 | 16

> 1ISL = E port or TE port.

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