Sun Enterprise 220R Server Service Manual

7.6.5 Ethernet

The Ethernet diagnostic performs the following tests.

Test 

Function 

my_channel_reset

Resets the Ethernet channel. 

hme_reg_test

Performs walk-one on the following registers set: global register 1, global register 2, bmac xif register, bmac tx register, and the mif register. 

MAC_internal_loopback_test

Performs Ethernet channel engine internal loopback. 

10_mb_xcvr_loopback_test

Enables the 10BASE-T data present at the transmit MII data inputs to be routed back to the receive MII data outputs. 

100_mb_phy_loopback_test

Enables MII transmit data to be routed to the MII receive data path. 

100_mb_twister_loopback_test

Forces the twisted-pair transceiver into loopback mode. 

The following example shows the Ethernet diagnostic output message.


Example 7-2


Enter (0-11 tests, 12 -Quit, 13 -Menu) ===> 2

TEST='ethernet_test'
SUBTEST='my_channel_reset'
SUBTEST='hme_reg_test'
SUBTEST='global_reg1_test'
SUBTEST='global_reg2_test'
SUBTEST='bmac_xif_reg_test'
SUBTEST='bmac_tx_reg_test'
SUBTEST='mif_reg_test'
SUBTEST='mac_internal_loopback_test'
SUBTEST='10mb_xcvr_loopback_test'
SUBTEST='100mb_phy_loopback_test'
Enter (0-12 tests, 13 -Quit, 14 -Menu) ===>