Command Reference Guide

The commands that you can use depend on the system that you have, your level of access, and the types of modules and other hardware options that are configured for your system. The following diagram shows the complete list of commands for all systems. See the checklist at the beginning of each command description in this chapter for whether your system supports the command.

fddi station display

Displays FDDI station information. The system display shows the station configuration, status reporting, and the most pertinent statistics about general station activity and errors.

Valid Minimum Abbreviation

: fd station d

Fields in the FDDI Station Display

Field

Description

configuration

Attachment configuration for the station or concentrator. Values can be Thru, Isolated, Wrap_A, and Wrap_B.

connectPolicy

Bit string that represents the connection policies in effect on a station. How connection policies translate into bits is described in "fddi station connectPolicy" later in this chapter. This value is user-defined.

ecmState

Current state of the ECM state machine.

ports

Ports numbers assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.

remoteDisconnect

Flag indicating that the station was remotely disconnected from the network as a result of receiving an fddiSMTAction with the value of disconnect in a Parameter Management Frame (PMF). A station requires a Connect Action to rejoin the network and clear the flag.

stationID

Unique identifier for the FDDI station.

statusReporting

Whether a station generates Status Report Frames (SRFs) to report events and conditions to network management stations. This value is user-defined.

tnotify

Timer used in the Neighbor Notification protocol to indicate the interval of time between generation of Neighbor Information Frames (NIF). This value is user-defined.

traceMaxExp

Maximum propagation time for a trace on an FDDI topology. Places a lower bound on the detection time for an unrecovering ring.

Field	Description
configuration	Attachment configuration for the station or concentrator. Values can be `Thru`, `Isolated`, `Wrap_A`, and `Wrap_B`.
connectPolicy	Bit string that represents the connection policies in effect on a station. How connection policies translate into bits is described in "fddi station connectPolicy" later in this chapter. This value is user-defined.
ecmState	Current state of the ECM state machine.
ports	Ports numbers assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.
remoteDisconnect	Flag indicating that the station was remotely disconnected from the network as a result of receiving an fddiSMTAction with the value of `disconnect` in a Parameter Management Frame (PMF). A station requires a Connect Action to rejoin the network and clear the flag.
stationID	Unique identifier for the FDDI station.
statusReporting	Whether a station generates Status Report Frames (SRFs) to report events and conditions to network management stations. This value is user-defined.
tnotify	Timer used in the Neighbor Notification protocol to indicate the interval of time between generation of Neighbor Information Frames (NIF). This value is user-defined.
traceMaxExp	Maximum propagation time for a trace on an FDDI topology. Places a lower bound on the detection time for an unrecovering ring.

fddi station connectPolicy

Sets the connectPolicy attribute string that represents the connection policies in effect on a station. A connection's type is defined by the types of the two ports involved in the connection.

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the connection policies.	Any of the available ports on the installed FDDI modules all	-
connectPolicy	Bit string that represents the connection policies in effect on that station	See next table	-

Bit to Set for Rejecting a Station Connection

This Connection Is Rejected

If This Bit Is Set

Connection Rules

A-A

0

Undesirable peer connection that creates twisted primary and secondary rings; notify station management (SMT).

A-B

1

Normal trunk ring peer connection.

A-S

2

Undesirable peer connection that creates a wrapped ring; notify SMT.

A-M

3

Tree connection with possible redundancy. The node may not go to Thru state in Configuration Management (CFM). In a single MAC node, Port B has precedence (with defaults) for connecting to a Port M.

B-A

4

Normal trunk ring peer connection.

B-B

5

Undesirable peer connection that creates twisted primary and secondary rings; notify SMT.

B-S

6

Undesirable peer connection that creates a wrapped ring; notify SMT.

B-M

7

Tree connection with possible redundancy. The node may not go to Thru state in CFM.
In a single MAC node, Port B has precedence (with defaults) for connecting to a Port M.

M-A

12

Tree connection with possible redundancy.

M-B

13

Tree connection with possible redundancy.

M-S

14

Normal tree connection.

M-M

15

Connection that allows one system port to be connected to another system port.

This Connection Is Rejected	If This Bit Is Set	Connection Rules
A-A	0	Undesirable peer connection that creates twisted primary and secondary rings; notify station management (SMT).
A-B	1	Normal trunk ring peer connection.
A-S	2	Undesirable peer connection that creates a wrapped ring; notify SMT.
A-M	3	Tree connection with possible redundancy. The node may not go to Thru state in Configuration Management (CFM). In a single MAC node, Port B has precedence (with defaults) for connecting to a Port M.
B-A	4	Normal trunk ring peer connection.
B-B	5	Undesirable peer connection that creates twisted primary and secondary rings; notify SMT.
B-S	6	Undesirable peer connection that creates a wrapped ring; notify SMT.
B-M	7	Tree connection with possible redundancy. The node may not go to Thru state in CFM. In a single MAC node, Port B has precedence (with defaults) for connecting to a Port M.
M-A	12	Tree connection with possible redundancy.
M-B	13	Tree connection with possible redundancy.
M-S	14	Normal tree connection.
M-M	15	Connection that allows one system port to be connected to another system port.

fddi station tNotify

Sets the timer used in the Neighbor Notification protocol to indicate the interval of time between generation of Neighbor Information Frames (NIF).

Valid Minimum Abbreviation

: fd station t

Important Considerations

If you set the T-notify value low, your network reacts quickly to station changes, but uses more bandwidth.
If you set the T-notify value high, less bandwidth is used, but your network does not react to station changes as quickly.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the neighbor notification timer

Any of the available ports on the installed FDDI modules
all

-

tnotify

Timer (in seconds) used in the Neighbor Notification protocol to indicate the interval of time between generation of Neighbor Information Frames (NIF).

2 - 30 seconds

30

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the neighbor notification timer	Any of the available ports on the installed FDDI modules all	-
tnotify	Timer (in seconds) used in the Neighbor Notification protocol to indicate the interval of time between generation of Neighbor Information Frames (NIF).	2 - 30 seconds	30

fddi station statusReporting

Controls whether a station generates Status Report Frames (SRFs) to report events and conditions to network management stations.

Valid Minimum Abbreviation

: fd station s

Important Consideration

If you do not have an SMT management station listening to these event reports or if you use SNMP to monitor FDDI events on all FDDI end stations, set this attribute to disabled so that the station does not generate SRFs.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set statusReporting

Any of the available ports on the installed FDDI modules
all

-

statusReporting

Parameter that controls whether a station generates Status Report Frames (SRFs) to report events and conditions to network management stations

enabled
disabled

enabled

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set statusReporting	Any of the available ports on the installed FDDI modules all	-
statusReporting	Parameter that controls whether a station generates Status Report Frames (SRFs) to report events and conditions to network management stations	enabled disabled	enabled

fddi path display

Displays FDDI path information.

Valid Minimum Abbreviation

: fd pa d

Important Consideration

The path display changes slightly when ports are configured as DAS ports.

Fields in the FDDI Path Display

Field

Description

maxTReq

Maximum time value of fddiMACT-Req that any MAC that is configured in this path uses. This value can be user-defined.

path

Current selected path.

ports

Ports numbers that are assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.

ringLatency

Total accumulated latency of the ring that is associated with this path.

tmaxLowBound

Minimum time value of fddiMACT-Max that any MAC that is configured in this path uses. This value can be user-defined.

traceStatus

Current trace status of the path.

tvxLowBound

Minimum time value of fddiMACTvxValue that any MAC that is configured in this path uses. This value can be user-defined.

Field	Description
maxTReq	Maximum time value of fddiMACT-Req that any MAC that is configured in this path uses. This value can be user-defined.
path	Current selected path.
ports	Ports numbers that are assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.
ringLatency	Total accumulated latency of the ring that is associated with this path.
tmaxLowBound	Minimum time value of fddiMACT-Max that any MAC that is configured in this path uses. This value can be user-defined.
traceStatus	Current trace status of the path.
tvxLowBound	Minimum time value of fddiMACTvxValue that any MAC that is configured in this path uses. This value can be user-defined.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the path display

Any of the available ports on the installed FDDI modules
all

-

Path

Path that you want to set.

A DAS port has primary and secondary paths.
A SAS port has only a primary path.

p (primary)
s (secondary)
all

-

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the path display	Any of the available ports on the installed FDDI modules all	-
Path	Path that you want to set. A DAS port has primary and secondary paths. A SAS port has only a primary path.	p (primary) s (secondary) all	-

fddi path tvxLowerBound

Specifies the minimum time value (in microseconds) of fddiMAC tvxValue that any MAC that is configured in this path uses.

Valid Minimum Abbreviation

: fd pa tv

Important Considerations

A MAC uses its valid transmission timer (TVX) to detect and recover from certain ring errors. If a valid frame has not passed through a MAC during the time indicated by fddiMACTvxValue, the MAC reinitializes the ring.
By adjusting the tvxLowerBound value, you specify how quickly the ring recovers from an error. The lower you set this value, the faster the network reacts to problems, but the ring might be reinitialized when there is no problem.
The higher you set this value, the less chance of frequent reinitializations, but the network will take longer to recover from errors.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the tvxLowerBound

Any of the available ports on the installed FDDI modules
all

-

Path

Path that you want to set.

A DAS port has primary and secondary paths.
A SAS port has only a primary path.

p (primary)
s (secondary)
all

-

tvxLowerBound

Minimum time value of fddiMAC tvxValue that any MAC that is configured onto this path uses

0 - 4294967295 microseconds

2500

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the tvxLowerBound	Any of the available ports on the installed FDDI modules all	-
Path	Path that you want to set. A DAS port has primary and secondary paths. A SAS port has only a primary path.	p (primary) s (secondary) all	-
tvxLowerBound	Minimum time value of fddiMAC tvxValue that any MAC that is configured onto this path uses	0 - 4294967295 microseconds	2500

fddi path tmaxLowerBound

Specifies the minimum time value (in microseconds) of fddiMAC T-Max that any MAC that is configured in this path uses. This value specifies the boundary for how high T-Req (the requested token rotation time) can be set.

Valid Minimum Abbreviation

: fd pa tm

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the tmaxLowerBound

Any of the available ports on the installed FDDI modules
all

-

Path

Path that you want to set.

A DAS port has primary and secondary paths.
A SAS port has only a primary path.

p (primary)
s (secondary)
all

-

tmaxLowerBound

Minimum time value of fddiMAC T-Max that any MAC that is configured onto this path uses.

0 - 4294967295 microseconds

16500

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the tmaxLowerBound	Any of the available ports on the installed FDDI modules all	-
Path	Path that you want to set. A DAS port has primary and secondary paths. A SAS port has only a primary path.	p (primary) s (secondary) all	-
tmaxLowerBound	Minimum time value of fddiMAC T-Max that any MAC that is configured onto this path uses.	0 - 4294967295 microseconds	16500

fddi path maxTreq

Specifies the maximum time value (in microseconds) of fddiMACT-Req that is used by any MAC that is configured in this path. T-Req is the value that a MAC bids during the claim process to determine a ring's operational token rotation time, T_Opr. The lowest T-Req bid on the ring becomes T_Opr.

Valid Minimum Abbreviation

: fd pa m

Important Considerations

When you set T_Opr low, the token rotates more quickly, so token latency is reduced. However, more of the ring's available bandwidth is used to circulate the token.
Higher values of T_Opr use less bandwidth to circulate the token, but they increase token latency when the ring is saturated.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the path maxTreq

Any of the available ports on the installed FDDI modules
all

-

Path

Path that you want to set.

A DAS port has primary and secondary paths.
A SAS port has only a primary path.

p (primary)
s (secondary)
all

-

maxTreq

Value that a MAC bids during the claim process to determine a ring's operational token rotation time, T_Opr

0 - 4294967295 microseconds

16500

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the path maxTreq	Any of the available ports on the installed FDDI modules all	-
Path	Path that you want to set. A DAS port has primary and secondary paths. A SAS port has only a primary path.	p (primary) s (secondary) all	-
maxTreq	Value that a MAC bids during the claim process to determine a ring's operational token rotation time, T_Opr	0 - 4294967295 microseconds	16500

fddi mac summary

Displays a summary of FDDI MAC information. A summary report displays various FDDI MAC statistics, including information about the MAC, received and transmitted frames, and received and transmitted bytes.

Valid Minimum Abbreviation

: fd m s

Important Consideration

The MAC summary display changes slightly when ports are configured as DAS ports.

Fields in the FDDI MAC Summary Display

Field

Description

currentPath

Path on which this MAC is currently located (primary,
secondary, or isolated)

downstream

MAC address of this MAC's downstream neighbor

Errors

Sum of errorCount, lateCount, lostCount, and tvxExpiredCount

noRxBuffers

Number of frames discarded because no buffer space was available

port

Port numbers assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.

rxBytes

Number of bytes that this MAC received

rxErrors

Number of errors that this MAC received

rxFrames

Number of frames that this MAC received

station

Unique identifier for the FDDI station.

smtAddress

Address of the MAC that was used for SMT frames

txBytes

Number of bytes that this MAC transmitted

txFrames

Number of frames that this MAC transmitted. This number does not include MAC frames.

txQOverflows

Number of frames that were discarded because the transmit queue was full

upstream

MAC address of this MAC's upstream neighbor

Field	Description
currentPath	Path on which this MAC is currently located (`primary`, `secondary`, or `isolated`)
downstream	MAC address of this MAC's downstream neighbor
Errors	Sum of errorCount, lateCount, lostCount, and tvxExpiredCount
noRxBuffers	Number of frames discarded because no buffer space was available
port	Port numbers assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.
rxBytes	Number of bytes that this MAC received
rxErrors	Number of errors that this MAC received
rxFrames	Number of frames that this MAC received
station	Unique identifier for the FDDI station.
smtAddress	Address of the MAC that was used for SMT frames
txBytes	Number of bytes that this MAC transmitted
txFrames	Number of frames that this MAC transmitted. This number does not include MAC frames.
txQOverflows	Number of frames that were discarded because the transmit queue was full
upstream	MAC address of this MAC's upstream neighbor

fddi mac detail

Displays detailed FDDI MAC information. A detail report displays various FDDI MAC statistics, including information about the MAC, received and transmitted frames, and received and transmitted bytes, as well as additional FDDI MAC statistics.

Valid Minimum Abbreviation

: fd m d

Important Consideration

The MAC summary display changes slightly when ports are configured as DAS ports.

Fields in the FDDI MAC Detail Display

Field

Description

currentPath

Path on which this MAC is currently located primary or
secondary, isolated, concatenated, or thru

downstream

MAC address of this MAC's downstream neighbor

downstreamType

PC type of this MAC's downstream neighbor

dupAddrTest

Pass or fail test for a duplicate address

duplicateAddr

Whether this address is duplicated on the FDDI ring

errorCount

Number of SMT MAC errors

frameCount

Number of frames that this MAC received

frameErrCond

Active when the frameErrorRatio is greater than or equal to frameErrorThresh.

frameErrorRatio

Ratio of the number lostCount plus the frameErrorCount divided by the frameCount plus lostCount

frameErrThresh

Threshold for determining when a MAC condition report is generated

lateCount

Number of token rotation timer expirations since this MAC last received a token

llcAvailable

Whether this MAC can send or receive LLC frames

llcService

Setting of the Logical Link Control service

lostCount

Number of frames and tokens that this MAC lost during reception

noRxBuffers

Number of frames discarded because no buffer space was available

notCopiedCond

Active when the notCopiedRatio is greater than or equal to notCopiedThresh.

notCopiedCount

Number of frames that were addressed to this MAC but were not copied into its receive buffers

notCopiedRatio

Ratio of notCopiedCount divided by the quantity copiedCount plus notCopiedCount

notCopiedThresh

Threshold for determining when a MAC condition report is generated

oldDownstream

Previous value of the MAC address of this MAC's downstream neighbor

oldUpstream

Previous value of the MAC address of this MAC's upstream neighbor

ringOpCount

Number of times that this MAC has entered the operational state from the nonoperational state

rmtState

State of the ring management as defined in SMT

rxByteRate

Average number of bytes per second that this MAC received during the most recent sampling period

rxBytes

Number of bytes that this MAC received

rxDiscards

Number of good frames that this MAC received and discarded before being delivered to a higher-level protocol or application. Does not include frames that were not received into receive buffers, such as missed frames.

rxFrameRate

Average number of frames per second that this MAC received during the most recent sampling period

rxFrames

Number of frames that this MAC received

rxInternalErrs

Number of frames discarded because of an internal hardware error during reception

rxMulticasts

Number of multicast frames that this MAC delivered to a higher-level protocol or application

rxPeakByteRate

Peak value of fddiMACByteReceiveRate for this MAC since the station was last initialized

rxPeakFrameRate

Peak value of fddiMACFrameReceiveRate for this MAC since the station was last initialized

rxUnicasts

Number of unicast (nonmulticast) frames that this MAC delivered to a higher-level protocol or application

smtAddress

Address of the MAC used for SMT frames

tMax

Maximum value of the target token rotation time

tMaxCapab

Maximum supported target token rotation time that this MAC can support

tNeg

Target token rotation time negotiated during the claim process

tokenCount

Number of tokens that this MAC received

tReq

Target token rotation time that this MAC requested

tvxCapab

Maximum time value of the valid transmission timer that this MAC can support

tvxExpiredCount

Number of times that this MAC's valid transmission timer has expired

tvxValue

Value of the valid transmission timer that this MAC uses

txByteRate

Average number of bytes that this MAC transmitted per second during the most recent sampling period

txBytes

Number of bytes that this MAC transmitted

txDiscards

Number of frames discarded because LLC service was not enabled or the FDDI ring was not operational

txFrameRate

Average number of frames that this MAC transmitted per second during the most recent sampling period

txFrames

Number of frames that this MAC transmitted. This number does not include MAC frames.

txInternalErrs

Number of frames discarded because of an internal hardware error during transmission

txMulticasts

Number of multicast frames queued for transmission by a higher-level protocol or application, including frames not transmitted successfully

txPeakByteRate

Peak value of fddiMACByteTransmitRate for this MAC since the station was last initialized

txPeakFrameRate

Peak value of fddiMACFrameTransmitRate for this MAC since the station was last initialized

txQOverflows

Number of frames discarded because the transmit queue was full

txUnicasts

Number of unicast frames queued for transmission by a higher-level protocol or application, including frames not transmitted successfully

upstream

MAC address of this MAC's upstream neighbor

upstreamDupAddr

Whether the address upstream of this address is duplicated on the ring

Field	Description
currentPath	Path on which this MAC is currently located `primary` or `secondary`, `isolated`, `concatenated`, or `thru`
downstream	MAC address of this MAC's downstream neighbor
downstreamType	PC type of this MAC's downstream neighbor
dupAddrTest	Pass or fail test for a duplicate address
duplicateAddr	Whether this address is duplicated on the FDDI ring
errorCount	Number of SMT MAC errors
frameCount	Number of frames that this MAC received
frameErrCond	Active when the frameErrorRatio is greater than or equal to frameErrorThresh.
frameErrorRatio	Ratio of the number lostCount plus the frameErrorCount divided by the frameCount plus lostCount
frameErrThresh	Threshold for determining when a MAC condition report is generated
lateCount	Number of token rotation timer expirations since this MAC last received a token
llcAvailable	Whether this MAC can send or receive LLC frames
llcService	Setting of the Logical Link Control service
lostCount	Number of frames and tokens that this MAC lost during reception
noRxBuffers	Number of frames discarded because no buffer space was available
notCopiedCond	Active when the notCopiedRatio is greater than or equal to notCopiedThresh.
notCopiedCount	Number of frames that were addressed to this MAC but were not copied into its receive buffers
notCopiedRatio	Ratio of notCopiedCount divided by the quantity copiedCount plus notCopiedCount
notCopiedThresh	Threshold for determining when a MAC condition report is generated
oldDownstream	Previous value of the MAC address of this MAC's downstream neighbor
oldUpstream	Previous value of the MAC address of this MAC's upstream neighbor
ringOpCount	Number of times that this MAC has entered the operational state from the nonoperational state
rmtState	State of the ring management as defined in SMT
rxByteRate	Average number of bytes per second that this MAC received during the most recent sampling period
rxBytes	Number of bytes that this MAC received
rxDiscards	Number of good frames that this MAC received and discarded before being delivered to a higher-level protocol or application. Does not include frames that were not received into receive buffers, such as missed frames.
rxFrameRate	Average number of frames per second that this MAC received during the most recent sampling period
rxFrames	Number of frames that this MAC received
rxInternalErrs	Number of frames discarded because of an internal hardware error during reception
rxMulticasts	Number of multicast frames that this MAC delivered to a higher-level protocol or application
rxPeakByteRate	Peak value of fddiMACByteReceiveRate for this MAC since the station was last initialized
rxPeakFrameRate	Peak value of fddiMACFrameReceiveRate for this MAC since the station was last initialized
rxUnicasts	Number of unicast (nonmulticast) frames that this MAC delivered to a higher-level protocol or application
smtAddress	Address of the MAC used for SMT frames
tMax	Maximum value of the target token rotation time
tMaxCapab	Maximum supported target token rotation time that this MAC can support
tNeg	Target token rotation time negotiated during the claim process
tokenCount	Number of tokens that this MAC received
tReq	Target token rotation time that this MAC requested
tvxCapab	Maximum time value of the valid transmission timer that this MAC can support
tvxExpiredCount	Number of times that this MAC's valid transmission timer has expired
tvxValue	Value of the valid transmission timer that this MAC uses
txByteRate	Average number of bytes that this MAC transmitted per second during the most recent sampling period
txBytes	Number of bytes that this MAC transmitted
txDiscards	Number of frames discarded because LLC service was not enabled or the FDDI ring was not operational
txFrameRate	Average number of frames that this MAC transmitted per second during the most recent sampling period
txFrames	Number of frames that this MAC transmitted. This number does not include MAC frames.
txInternalErrs	Number of frames discarded because of an internal hardware error during transmission
txMulticasts	Number of multicast frames queued for transmission by a higher-level protocol or application, including frames not transmitted successfully
txPeakByteRate	Peak value of fddiMACByteTransmitRate for this MAC since the station was last initialized
txPeakFrameRate	Peak value of fddiMACFrameTransmitRate for this MAC since the station was last initialized
txQOverflows	Number of frames discarded because the transmit queue was full
txUnicasts	Number of unicast frames queued for transmission by a higher-level protocol or application, including frames not transmitted successfully
upstream	MAC address of this MAC's upstream neighbor
upstreamDupAddr	Whether the address upstream of this address is duplicated on the ring

fddi mac frameErrorThreshold

Determines when the system generates a MAC condition report because too many frame errors have occurred.

Valid Minimum Abbreviation

: fd m f

Important Considerations

A frame error occurs when a frame becomes corrupted.
A high frame error rate often indicates a faulty station on the FDDI ring or a dirty FDDI connector.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the mac frameErrorThreshold

Any of the available ports on the installed FDDI modules
all

-

frameErrorThreshold value

Time value set to determine when the system generates a MAC condition report because too many frame errors have occurred

0 - 4294967295 microseconds

655

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the mac frameErrorThreshold	Any of the available ports on the installed FDDI modules all	-
frameErrorThreshold value	Time value set to determine when the system generates a MAC condition report because too many frame errors have occurred	0 - 4294967295 microseconds	655

fddi mac notCopiedThreshold

Sets the timing when the system generates a MAC condition report because too many frames could not be copied.

Valid Minimum Abbreviation

: fd m n

Important Consideration

Not-copied frames occur when there is no buffer space available in the station (which in turn indicates congestion in the station).

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the mac notCopiedThreshold

Any of the available ports on the installed FDDI modules
all

-

notCopiedThreshold

Time value set to determines when the system generates a MAC condition report because too many frames could not be copied

0 - 4294967295 microseconds

6550

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the mac notCopiedThreshold	Any of the available ports on the installed FDDI modules all	-
notCopiedThreshold	Time value set to determines when the system generates a MAC condition report because too many frames could not be copied	0 - 4294967295 microseconds	6550

fddi mac llcService

Sets the Logical Link Control (LLC) service so that LLC frames are sent and received on the MAC. LLC frames are all data frames that are transmitted on the network.

Valid Minimum Abbreviation

: fd m l

Important Consideration

If there is something wrong on your network, you may want to turn off data (user) traffic for a MAC by disabling LLC service. Although you have disabled data traffic from the MAC, the MAC still participates in neighbor notification and is visible to network management.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the mac llcService

Any of the available ports on the installed FDDI modules
all

-

llcService

Whether LLC frames are sent and received on the MAC

enabled
disabled

enabled

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the mac llcService	Any of the available ports on the installed FDDI modules all	-
llcService	Whether LLC frames are sent and received on the MAC	enabled disabled	enabled

fddi mac path

Sets the path assignment for MACs.

: fd m p

Important Consideration

The fddi MAC path selections depend on the stationMode configuration (DAS or SAS).

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the MAC path

Any of the available ports on the installed FDDI modules
all

-

MAC path

Path assignments for MACs

For DAS ports:

primary
secondary
isolated
For SAS ports:
primary
isolated

primary

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the MAC path	Any of the available ports on the installed FDDI modules all	-
MAC path	Path assignments for MACs	For DAS ports: primary secondary isolated For SAS ports: primary isolated	primary

fddi port display

Displays information about FDDI ports, including the type, path, and port label, as well as other FDDI port statistics, such as error counters.

Valid Minimum Abbreviation

: fd po d

Fields in the FDDI Port Display

Field

Description

connectState

Connect state of this port (disabled, connecting, standby, or active)

currentPath

Path on which this port is currently located

ebErrorCond

Whether an elasticity buffer error has been detected during the past 2 seconds

ebErrorCount

Number of elasticity buffer errors that have been detected

lctFailCount

Number of consecutive times that the link confidence test (LCT) has failed during connection management

lemCount

Number of link errors that this port detected

lemRejectCount

Number of times that the link error monitor rejected the link

lerAlarm

Link error rate estimate at which a link connection generates an alarm

lerCondition

Whether the lerEstimate is less than or equal to lerAlarm

lerCutoff

Link error rate estimate at which a link connection is broken

lerEstimate

Average link error rate. It ranges from 10^-4 to 10^-15 and is reported as the absolute value of the exponent of the link error estimate

lineState

Line state of this port

myType

Type of port connector on the port (A, B, S, M)

neighborType

Type of port connector at the other end of the physical connection (A, B, S, M)

pcmState

Current Physical Connection Management (PCM) state defined in SMT

pcWithhold

Reason for withholding the connection

pmdClass

Type of PMD entity that is associated with this port

port

Ports numbers that are assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.

portLabel

32-character string of a user-defined name for the port

Field	Description
connectState	Connect state of this port (`disabled`, `connecting`, `standby`, or `active`)
currentPath	Path on which this port is currently located
ebErrorCond	Whether an elasticity buffer error has been detected during the past 2 seconds
ebErrorCount	Number of elasticity buffer errors that have been detected
lctFailCount	Number of consecutive times that the link confidence test (LCT) has failed during connection management
lemCount	Number of link errors that this port detected
lemRejectCount	Number of times that the link error monitor rejected the link
lerAlarm	Link error rate estimate at which a link connection generates an alarm
lerCondition	Whether the lerEstimate is less than or equal to lerAlarm
lerCutoff	Link error rate estimate at which a link connection is broken
lerEstimate	Average link error rate. It ranges from 10^-4 to 10^-15 and is reported as the absolute value of the exponent of the link error estimate
lineState	Line state of this port
myType	Type of port connector on the port (`A`, `B`, `S`, `M`)
neighborType	Type of port connector at the other end of the physical connection (`A`, `B`, `S`, `M`)
pcmState	Current Physical Connection Management (PCM) state defined in SMT
pcWithhold	Reason for withholding the connection
pmdClass	Type of PMD entity that is associated with this port
port	Ports numbers that are assigned to the FDDI module. The FDDI port numbers change depending on the configuration of your system.
portLabel	32-character string of a user-defined name for the port

fddi port lerAlarm

Sets the link error rate (LER) value at which a link connection generates an alarm.

Valid Minimum Abbreviation

: fd p lerA

Important Considerations

The lerAlarm value is expressed as the absolute value of the exponent (such as 1 x 10^-10). A healthy network has an LER exponent between 1 x 10^-10 and 1 x 10^-15.
If the LER value is greater than the alarm setting, then SMT sends a Status Report Frame (SRF) to the network manager software indicating a problem with a port.
Set the lerAlarm value below these values so that you receive alarms only if your network is in poor health. The SMT Standard recommended value is 8.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the port lerAlarm

Any of the available ports on the installed FDDI modules
all

-

lerAlarm value

Link error rate (LER) value at which a link connection generates an alarm

4 - 15

7

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the port lerAlarm	Any of the available ports on the installed FDDI modules all	-
lerAlarm value	Link error rate (LER) value at which a link connection generates an alarm	4 - 15	7

fddi port lerCutoff

Sets the link error rate estimate at which a link connection is disabled. When the lerCutoff value is reached, the PHY that detected a problem is disabled.

Valid Minimum Abbreviation

: fd p lerC

Important Considerations

The lerCutoff value must be lower than the lerAlarm value so that the network management software is alerted to a problem before the PHY (port) is actually removed from the network.
Set the lerCutoff below these values so that a port is removed only as a last resort. The SMT Standard recommended value is 7.
The lerCutoff value is expressed as an exponent (such as 1 x 10^-10). A healthy network has an LER exponent between 1 x 10^-10 and 1 x 10^-15.

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the port lerCutoff

Any of the available ports on the installed FDDI modules
all

-

lerCutoff

Link error rate estimate at which a link connection is disabled

4 - 15

4

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the port lerCutoff	Any of the available ports on the installed FDDI modules all	-
lerCutoff	Link error rate estimate at which a link connection is disabled	4 - 15	4

fddi port label

Assigns a unique name to your FDDI ports for easy identification of the devices that are attached to them (for example, workstation, server, FDDI backbone). Port labels serve as useful reference points and as an accurate means of identifying your ports for management.

Valid Minimum Abbreviation

: fd p label

Options

Prompt

Description

Possible Values

[Default]

Ports

One or more FDDI station ports for which you want to set the port label

Any of the available ports on the installed FDDI modules
all

-

Label

Name of the FDDI port used for identification

-

-

Prompt	Description	Possible Values	[Default]
Ports	One or more FDDI station ports for which you want to set the port label	Any of the available ports on the installed FDDI modules all	-
Label	Name of the FDDI port used for identification	-	-

fddi stationMode display

Generates a display of FDDI stationMode information. The display shows the station mode, DAS (Dual Attachment Station) or SAS (Single Attachment Station), for each FDDI port.

Valid Minimum Abbreviation

: fd stationM d

Important Consideration

Before the new stationMode takes effect, you must reboot your system.

Fields in the FDDI Station Mode Display

Field

Description

Ports

Ports numbers that are assigned to the FDDI module. The FDDI port numbers change, depending on the configuration of your system.

stationMode

Current FDDI stationMode, DAS or SAS, that is assigned to a specific port.

Field	Description
Ports	Ports numbers that are assigned to the FDDI module. The FDDI port numbers change, depending on the configuration of your system.
stationMode	Current FDDI stationMode, `DAS` or `SAS`, that is assigned to a specific port.

fddi stationMode modify

Modifies the stationMode, DAS or SAS, that is assigned to a specific port number.

Valid Minimum Abbreviation

: fd stationM m

Important Considerations

You cannot modify the stationMode when any of the ports in the pair are part of a trunk.
Before the new stationMode takes effect, you must reboot your system.

Options

Prompt

Description

Possible Values

[Default]

Ports

FDDI station port for which you want to set the stationMode

Any of the available ports on the installed FDDI modules
all

-

stationMode

Mode of the FDDI port pair selected to change

DAS
SAS

SAS

reboot

Prompt to reboot the system if you want the stationMode changes to take effect

y (yes)
n (no)

-

Prompt	Description	Possible Values	[Default]
Ports	FDDI station port for which you want to set the stationMode	Any of the available ports on the installed FDDI modules all	-
stationMode	Mode of the FDDI port pair selected to change	DAS SAS	SAS
reboot	Prompt to reboot the system if you want the stationMode changes to take effect	y (yes) n (no)	-