CTC Union FRM220-NMC, Руководство пользователя

Страница: 42 / 182

Appendix A
40
Slot
The slots in the chassis are numbered 1 ~ 20 from left to right when viewing from the front of the FRM220. The
first slot is reserved for the NMC card. This card is required in every chassis, even in a cascaded stack. The slots
for cards are numbered 2 ~ 20. The example above shows the card in slot 2 or the first available slot for interface
cards.
Side
Because most of the cards for the FRM220 series support in-band management, the "Side" parameter lets the
user know if he is in the management screen for the "Local" or in the FRM220 chassis or for the "Remote" or fiber
connected stand-alone converter.
Type
The field just tells the type of card installed in the slot (for local) or attached by fiber (for remote).
Version
The version parameter is broken into four fields as follows: 1.100-1.275-0.000-0.000
The first field represents the hardware version (version 1.1 in this case), the second field shows the firmware
or software version (version 1.275 shown here), the third field shows the CPLD version and the forth field the
FPGA version where applicable. The 10/100i has no CPLD or FPGA so those fields are shown as zeros.
A.1.7 FX Information
The FX Information shows the current state and settings of the optical interface of the media converter.
Link
This field represents the fiber link state, either 'Up' or 'Down'.
Rx Active
This field shows whether or not there is transmission activity on the receive fiber. With a connected pair and "In
Band Management" enabled, this will be 'On'.
FEF
FEF or Far End Fault uses a combination of standard IEEE802.3u and OAM to detect faults originating from
the remote or "far end" unit. If the remote has LLF enabled and its UTP link goes down, the local side will receive
the FEF code and FEF will be 'On'. If the remote unit is powered off, the local will also receive FEF code as well as
dying gasp (see Remote PWR).
Remote PWR
In a normal link this field will have a status of 'Ok'. If a remote converter experiences a power failure, it will
issue a FEF in what is commonly referred to as "dying gasp" to the local unit. In this case the administrator will be
able to distinguish between a fiber down from broken fiber or fiber down because of remote power failure.
LB Status
The 'loop back' function of this converter uses OAM and an echoed pattern to test the transmission connection
and quality. By using only the OAM frames, the loop back functions runs non-intrusively without affecting any
normal traffic on the Ethernet fiber link. When this status is 'OK', it indicates the OAM loop back is running without
error. A 'Failed' status indicates that loop back is active but the loop back is failing. 'Off' indicates loop back is not
running and is the normal condition.
SFP
This field will be 'No' if the converter is using a standard fixed (1x9) transceiver and will be 'Yes' if the converter
uses an SFP for optical connection (FRM220-10/100iS model).