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Nortel Networks OPTera Metro 3500 User Manual

Page 129

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Operation, administration, and maintenance (OAM) features 2-91

Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004

The 2xGigE/FC-P2P circuit packs collects Generic Interface Operational
Measurements (Generic Interface OMs) which contain a set of counters not
specific to any interface type. It is also used for the WAN side of the card. It
consists of 64 bit octet and packet counters for all interface speeds. The
counters are combined for unicast, multicast, and broadcast packets.

Table 2-16 on page 2-91

defines the generic interface Operational

Measurements (OM) for LAN interface supported on 2xGigE/FC-P2P circuit
packs.

Table 2-17 on page 2-92

defines the generic interface Operational

Measurements (OM) for WAN interface supported on 2xGigE/FC-P2P circuit
pack.

Note: Dribble bit errors are not counted.

Table 2-16
Generic Interface Operational Measurements - LAN interface

Counter

Definition

Ethernet

Fibre Channel

(supported on 2xGigE/FC-P2P

circuit pack)

INFRAMES
(In frames)

All frames received (OK, errored,
discarded, PAUSE, control, etc.).

Number of Class 2, 3 and framed F FC
frames received

INFRAMESERR
(In errored frames)

Frames received that contained a LAN
FCS errors preventing them from being
delivered. This includes fragments and
jabbers, but excludes undersize and
oversized frames.

NA

INFRAMESDISCDS
(In discarded frames)

Valid frames received and discarded
due to ingress buffer overflow.

Number of FC frames discarded due to
ingress buffer overflow. (always 0 when
EXTREACH/SUBRATE=DISABLE)

INOCTETS
(In octets)

All data octets received on the interface
(in good and errored frame). Includes
DA/SA/TL/FCS for Ethernet. This
measurement is incremented for
valid-length unerrored frames only.

Octets received on the interface.
(Rx Data bytes - (Rx Control *3) +
INFRAMES*8 + Rx Symbol errors)

INOCTETSERR
(In errored octets)

NA

Rx Disparity errors + Rx Symbol errors

OUTFRAMES
(Out frames)

Frames transmitted on this interface.

Number of Class 2, 3 and framed F FC
frames transmitted.

OUTFRAMESERR
(Out errored frames)

Frames that could not be transmitted
because of errors or that were
transmitted with errors.

NA

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