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    ES2-S1 10GE IOAs Overview

    The E120 and E320 routers support the ES2-S1 10GE IOA. Other E Series routers do not support the ES2-S1 10GE IOA.

    The ES2-S1 10GE IOA pairs with the ES2 4G LM to provide a 10-Gigabit Ethernet interface. For more information about the ES2 4G LM, see Unresolved xref.

    The ES2-S1 10GE IOA is offered in a full-height size that uses both adapter bays. The IOA is identified by the software as adapter bay 0. For more information about installing IOAs, see the E120 and E320 Hardware Guide.

    The ES2-S1 10GE IOA has one port, uses a range of 10-gigabit small form-factor pluggable transceivers (XFPs) to support different optical modes and cabling distances, and accepts one LC-style fiber-optic connector.

    Managing High-Density Ethernet

    With a 100 Gbps fabric configuration, the overall data rate for the ES2 4G LM with the ES2-S1 10GE IOA is 3.4 Gbps for large packets. With a 120 Gbps or a 320 Gbps fabric configuration, the overall data rate for the ES2 4G LM with the ES2-S1 10GE IOA is 3.9 Gbps for large packets. In all configurations, the line module becomes highly oversubscribed because of the available wire rate on the IOA. When paired with the ES2 4G LM, the data rate of the ES2-S1 10GE IOA is bandwidth limited with larger frames, and the packet rate is limited with smaller frames.

    Currently, flow control using MAC pause frames is disabled on the ES2-S1 10GE IOA. The IOA does not transmit or receive pause frames.

    For more information about high-density Ethernet on E Series routers, see High-Density Ethernet Overview.

    Published: 2014-08-14