LuxCom OM1004 Bedienungsanleitung

OM1004

Ethernet Switch

Three 1000BASE-X optical ports

One 10/100/1000BASE-T port

With Rapid Spanning Tree

O ERATING MANUAL

REV. 2.5

April 26, 2013

102 WALGREEN ROAD, OTTAWA, ONTARIO, K0A 1L0

Telephone (613) 831-7777 Fax (613) 831-7778

www. luxcom.com

email: sales@luxcom.com

Table of Contents

Description........................................................................................................................1

Indicators..........................................................................................................................1

Dip Switches.....................................................................................................................2

Rapid Spanning Tree rotocol (RST )..........................................................................3

Configuration Interface...................................................................................................4

OM1004 Main Menu..........................................................................................................4

The main menu is shown below.....................................................................................4

Bridge RST Menu...........................................................................................................6

Software Menu..................................................................................................................7

Specifications*.................................................................................................................9

Ordering Information.....................................................................................................10

Certification....................................................................................................................10

Warranty..........................................................................................................................10

Manual Revision History

Revision 1.0 Initial release

Revision 2.0 new format

Revision 2.1

Revision 2.2

Revision 2.3 Revise ALARM LED description

Revision 2.4 Update spec. for power s pply

Revision 2.5 a xiliary power s pply c be not s pplied.

Description

The OM1004 Ethernet switch has three 1000BASE-X optical ports and one 10/100/1000BASE-T

electrical port. Rapid Spanning Tree (RSTP) allows red ndant connections between nodes. A

dip switch allows pl g and play RSTP, while the serial console port allows for an RSTP

config ration tailored to specific needs. Optics for m ltimode, singlemode, and single fiber

applications are available. A niversal AC power s pply is b ilt in, while an a xiliary 5V DC inp t

from an external power c be (not s pplied) allows for power so rce red ndancy. The OM1004

is enclosed in a r gged metal case for low radiated and cond cted emissions. It does not

s pport j mbo packets.

Features

RSTP algorithm allows red ndant links

One 10/100/1000BASE-T electrical port

Three 1000BASE-X optical ports

Pl g and play operation

Red ndant power s pply inp ts

Single or m ltimode fiber option

Single bidirectional fiber option

SC or ST optical connectors

Temperat re range -10°C to 70°C

Distances p to 100 km

5 Year warranty

Indicators

LNK Link On when a bidirectional optical or electrical LINK has been

established with a remote Ethernet port.

Flashing when data is being transmitted or received.

ST Spanning Tree Green when the port is forwarding packets in RSTP mode.

Yellow when the port is blocking packets (is a standby link).

Note that only one end of a blocked link shows the blocking state;

however the remote link indicator will not flash which indicates it is

not passing data, and is therefore a back p link.

Green/Yellow when the port is in the transitory learning state.

Off when the port is not in RSTP mode.

S D Speed Green when electrical port is 1000BASE-T.

ALARM The switches on the back of the OM1004 control this indicator. It is

on when the link for a required port is off, or no link is present on

any port. When a port is required for proper network operation, the

corresponding switch sho ld be p. The front panel Alarm indicator

will then come on (red) when a req ired link fails. This gives a

vis al indication of link fail re. This is especially important in a

red ndant fiber config ration where the fail re wo ld not ca se a

data transfer fail re, and wo ld hence go nnoticed. If the

electrical port is connected to a comp ter which is t rned off at the

end of the day, switch five which controls that port sho ld be down

(off) to avoid nnecessary alarms.

Dip Switches

1 RSTP Up enables Rapid Spanning Tree Protocol (RSTP).

See the Rapid Spanning Tree section.

2Mode Up (software) allows the RSTP to be config red sing the Serial

Config ration Interface.

Down (hardware) sets the RSTP to f nction in its defa lt settings.

3Un sed

4Un sed

5 Port alarm 1 Up if port 1 (electrical port) is a req ired port. See Alarm in the

Indicator section.

6Port alarm 2 Up if port 2 (optical port) is a req ired port. See Alarm in the

Indicator section.

7Port alarm 3 Up if port 3 (optical port) is a req ired port. See Alarm in the

Indicator section.

8Port alarm 4 Up if port 4 (optical port) is a req ired port. See Alarm in the

Indicator section.

Rapid Spanning Tree rotocol (RST )

When a connection between Ethernet switches exists, making a second connection

directly or indirectly (thro gh a third switch) will disr pt the Ethernet network nless the

Rapid Spanning Tree Protocol (RSTP) is active. The RSTP will disable all red ndant paths,

and transmit data only over the preferred path; if the preferred path fails, the next port on

the priority list will become enabled. When the OM1004 is in RSTP mode, and Hardware

(defa lt) mode, and has red ndant paths, the data path with the lowest cost (highest

thro ghp t) becomes active, and the other path(s) are blocked. When alternate paths have

the same cost, the lowest n mber port (incl ding the RJ45 port) is the preferred path.

Alternately the serial Config ration Port on the OM1004 can be sed to set the priority of

the ports (SW2 p), however this is best avoided nless the ser is familiar with RSTP.

The following fig re shows an an example of an acceptable OM1004 spanning tree

config ration when in the defa lt pl g-and-play mode. Note that each port connects to

one other spanning tree port.

The following fig re shows an nacceptable spanning tree config ration when in the

defa lt pl g-and-play mode. Note that port 2 of switch A connects to switch B and C.

If it is desired to se the above topology, the OM1004 sho ld be set for software

config ration, and config ration men item e Set port admin p2p MAC sho ld be set to

NO (the defa lt of AUTO s ally becomes YES). This will allow the above topology at the

expense of a longer recovery time when the topology changes.

12 3

123

12 3

No Spanning Tree

12 3

12 3 12 3

123

45 6

Rapid Spanning Tree rotocol (RST )

Importance of the Root Node

In RSTP, the root node is f ndamental in determining the final topology of a network - i.e.

which red ndant paths become blocked. RSTP first determines the root node, then the

other nodes determine the shortest and fastest path to that root node. Ideally the root node

connects directly to eq ipment (s ch as a server) which experiences the highest traffic

vol me. The root node location cannot be controlled when all nodes are in the hardware

defa lt settings; however in software config ration mode, the men item 4 Set bridge

priority may be set to a low n mber (s ch as 0) which forces that node to be the root node.

The other nodes may be left in the hardware defa lt mode.

Configuration Interface

This serial RS232 interface allows the ser to config re the RSTP and monitor the

Ethernet statistics; its se is optional. The s pplied cable m st be connected between the

serial port of a PC and ths interface. A terminal em lation program m st be sed on the

PC. HyperTerminalTM which comes with the WindowsTM XP operating system is one

option.

To start HyperTerminalTM do the following:

Click on the START icon

Select Programs

Select Accessories

Select Comm nication

Select HyperTerminal

To config re HyperTerminalTM do the following:

Select File

Select properties

On drop-down called connect to

Select ..................direct to COM1

Select ..................config ration

Bits per Second . .= 38400

Data Bits..............= 8

Parity ...................= None

Stop Bits..............= 1

Flow control.........= Hardware

At this point pressing “enter” on the keyboard will bring p the OM1004 management

men .

OM1004 Main Menu

The main men is shown below.

OM1004 Main Men

1 Ethernet men

2 Bridge RSTP men

3 Software men

1' selects the Ethernet men , etc. Enter displays the c rrent men . In a s b-men , Esc goes back

one men level.

The main menu is shown below.

Ethernet Menu

The Ethernet men is shown below:

OM1004 Ethernet Men

1 Show ethernet stat s

2 Show switch interface and port registers

3 Show switch global registers

4 Show port packet statistics

Esc Back

This men shows stat s and statistics for each port. The ports are pl g and play, so there are no

config ration options. Ethernet men item 1 shows the link stat s of all ports; items 2 and 3 are for

factory diagnostic se only; item 4 shows the traffic statistics for each port.

Here is a sample of the information available in this men :

OM1004 Ethernet Men

1 Show ethernet stat s

2 Show switch interface and port registers

3 Show switch global registers

4 Show port packet statistics

Esc Back

:> 1

Ethernet Status

Port 1 2 3 4

Switch Port P1 P4 P6 P5

Type Electrical Optical Optical Optical

Media opper Fiber Fiber Fiber

Link Good Yes No No No

Auto-Negotiation Enabled Enabled Enabled Enabled

Speed 100BASE-TX 1000BASE-X 1000BASE-X 1000BASE-X

Duplex Full-Duplex Not available Not available Not available

MDI/MDI-X MDI NA NA NA

:> 4

Enter switch port (1 - 6): 1

Packet Statistics for Port P1 (cleared when read)

InGoodOctestsLo: 1686, InGoodOctestsHI: 0

InBadOctets: 0, OutF SErr: 0

InUnicast: 0, Deferred: 0

InBroadcasts: 22, InMulticasts: 0

64Octets: 22, 65 to 127Octets: 8

128 to 256Octets: 0, 256 to 511Octets: 0

512 to 1023Octets: 0, 1024 to MaxOctets: 0

OutOctetsLo: 512, OutOctetsHi: 0

OutUnicast: 0, Excessive: 0

OutMultcasts: 8, OutBroadcasts: 0

Single: 0, OutPause: 0

InPause: 0, Multiple: 0

InUndersize: 0, InFragments: 0

InOversize: 0, InJabber: 0

InRXErr: 0, InF Serr: 0

ollisions: 0, Late: 0

Bridge RST Menu

The Bridge RSTP men is shown below:

OM1004 Ethernet Bridge Men

See IEEE Std 802.1D-2004 for variable descriptions

1 Show bridge stat s

2 Show port stat s

3 Set defa lt config ration (reboot req ired)

4 Set bridge priority (BridgePriority)

5 Set bridge hello time (HelloTime)

6 Set bridge max age (MaxAge)

7 Set bridge forward delay (FwdDelay)

8 Set bridge protocol version (rstpVersion)

9 Set bridge transmit hold co nt (TxHoldCo nt)

a Set port priority (portPriority)

b Set port path cost (PortPathCost)

c Set port admin edge (AdminEdge)

d Set port a to edge (A toEdge)

e Set port admin p2p MAC (adminPointToPointMAC)

f Port mode check

Esc Back

This men shows the stat s and config ration options for the Rapid Spanning Tree Protocol. It is

recommended that these parameters only be changed by someone with an nderstanding of IEEE

802.1D-2004. In most cases the defa lt settings are adeq ate. The RSTP options are shown below.

The hardware /software defa lt settings are shown in brackets to the right of each item.

1 Show bridge stat s Shows stat s which applies to all ports on the OM1004.

2 Show port stat s Shows stat s which applies to individ al ports on the OM1004.

3 Set defa lt config ration Restores the saved RSTP config ration to its defa lt settings. Reboot

req ired.

4 Set bridge priority [32768] The n mber m st be a m ltiple of 4096 between 0 and 61440.

A low number makes it more likely to be the RST root node.

5 Set bridge hello time [2] The interval in seconds when the root bridge broadcasts a packet with

topology information.

6 Set bridge max age [20] If another bridge in the RSTP does not send o t a hello packet in this

time (in seconds), it is ass med to be dead.

7 Set bridge forward delay [1] The time in seconds for the bridge to be in the Learning state before

the Forwarding state is entered. This delay ca ses a new bridge on a

network to look at some traffic before participating.

8 Set bridge protocol version [2] 1 = old Spanning Tree Protocol, 2 = new Rapid Spanning Tree

Protocol.

Set bridge transmit hold co nt

[6] The transmit hold co nt.

a Set port priority [128] This n mber m st be a m ltiple of 16 between 0 and 240. A low

n mber makes it more likely to be a forwarding port (as opposed to a

blocking port).

Bridge RST Menu

b Set port path cost [0] Zero ca ses the path cost to be based on the link speed (a tomatic

mode). This n mber is 2x1013/data rate in bps. A low n mber means the

port is more likely to be chosen. The maxim m n mber is 200 000 000.

c Set port admin edge [n] No ca ses the bridge detection state machine to initially ass me

operEdge is false. Yes ca ses it to initially ass me operEdge is tr e.

d Set port a to edge [n] No disables a to edge detection. Yes enables a to edge detection.

e Set port admin p2p MAC [a to] Yes ca ses the port to be treated as if it is connected to a “point-to

point” LAN. This allows the port to move into the forwarding state faster,

b t there must be only one Ethernet RST bridge directly connected

to that port (e.g., the port cannot connect to an Ethernet switch with two

or more additional RSTP bridges connected). A to ca ses

operPointToPointMAC to be set based on the d plex mode of the MAC

which is normally f ll d plex.

f Port mode check Ca ses the bridge to transmit RSTP BPDUs in order to test the

hypothesis that non RSTP bridges have been removed from the LAN

connected to the port, and if that is the case, the remaining bridges will

switch back to RSTP mode.

Software Menu

The software men is shown below:

OM1004 Software Men

1 Show stored files

2 Upload new BACKUP

3 Swap BACKUP and PRIMARY

4 Reset/Reprogram with new PRIMARY

Esc Back

This men allows new software files for the OM1004 to be ploaded with the Xmodem protocol and

installed. There are two stored files: PRIMARY and BACKUP. A new pload replaces the previo s

BACKUP. The PRIMARY file is sed for reprogramming the OM1004. BACKUP and PRIMARY can

be swapped with the `3' command.

A sample session is shown below:

OM1004 Software Men

1 Show stored files

2 Upload new BACKUP

3 Swap BACKUP and PRIMARY

4 Reset/Reprogram with new PRIMARY

Esc Back

:> 1

PRIMARY MCU software file

Model: OM1004 Ethernet Switch

Card: Ethernet Card 1.1 Mar 24 2010 13:33:32

BACKUP MCU software file

Model: OM1004 Ethernet Switch

Card: Ethernet Card 1.0 Mar 5 2010 12:17:10

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