8101 datasheet(135/172 Pages) LSI

135 / 172 page

Management Counters

5-9

5.6.2 Negotiating with a Non-AutoNegotiation Capable Device

When the controller has AutoNegotiation enabled and the remote device

to which it is connected has the AutoNegotiation disabled (or does not

have AutoNegotiation capability at all), the controller stays in the link fail

state and continually restarts AutoNegotiation because it cannot

complete a negotiation sequence successfully. Conversely, the remote

device goes to the link pass state because it sees the AutoNegotiation

words transmitted to it as valid idle symbols. For proper operation

between two devices, the controller and the remote device must both be

either set with AutoNegotiation enabled or set with AutoNegotiation

disabled.

5.7 Management Counters

The controller management counters provide the necessary statistics to

completely support the following IETF and IEEE speciﬁcations:

• IETF RFC 1757:

RMON Statistics Group

• IETF RFC 1213 and 1573

SNMP Interfaces Group

• IETF RFC 1643:

Ethernet-Like MIB

• IEEE 802.3/Cl. 30:

Ethernet MIB

A complete list of the counters along with their deﬁnitions was already

deﬁned in Table 2.14. A map of the actual MIB objects from the IETF

and IEEE speciﬁcations to the speciﬁc controller counters is shown

below in Table 5.5–Table 5.8.

8101 Datasheet(PDF) 135 Page - LSI Computer Systems