7200 datasheet(32/44 Pages) ARISTA

32 / 44 page

Label

Port Number

Port Type

EOS Interface

1, 2, 3, 4

RJ45

Et1/1, Et1/2, Et1/3, Et1/4

3FTW, 4FTW

Fail-to-wire

5, 6, 7, 8

SFP+

Et1/5, Et1/6, Et1/7, Et1/8

Slot 2, Slot 3

Network Interface Module

(NIM)

Interface Capabilities

This section describes interface capabilities like speed and Forward Error Correction (FEC). For additional

information, see the EOS User's Guide. These capabilities are displayed with the following command:

show interfaces <INTF> hardware default

The speed/auto-negotiation depends on the MAC/P-capabilities, the front panel connector, and the type of

transceiver inserted. The default capabilities of the Arista AWE-7230R-4TX-4S Enterprise WAN router are

as follows:

Ports

Speed

Auto-negotiation

RJ45 (Et1/1-Et1/4)

1G/2.5G/5G/10G full duplex

SFP (Et1/5-Et1/8)

1G/10G

1G/10G full duplex

1G full duplex

When a transceiver is inserted, EOS recognizes the transceiver type. To see which types of transceivers are

supported, refer to the Supported Transceivers. EOS decides the capable speed/auto-negotiation that both

the hardware and the modules satisfy. To view the show commands and example outputs, refer to the Show

Commands for Speed and Auto-negotiation Capabilities.

When the interface does not have a speed configuration, EOS applies the default speed. On an RJ45 port,

the default configuration is auto-negotiation enabled with 10G. On an SFP port, the default configuration is

auto-negotiation disabled with 10G.

Speed Configuration

This section describes the configuration of interface speed and auto-negotiation.

Interface speed and auto-negotiation are configured using the

speed speed-lane-token command, as

shown in the following examples:

To configure 10G speed with auto-negotiation disabled:

Arista(config-if-Et1/1)#

speed 10g

To configure 1G speed with auto-negotiation disabled:

Arista(config-if-Et1/1)#

speed 1g

To configure 10G speed with auto-negotiation enabled:

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