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(Revised 2012-06-30) page 19 of 165

Serial Cable

Connect the serial COM port of your PC and the 7900 Series switch using a standard straight through cable.
You will require a cable with a 9-pin or 25-pin sub-D female connector for the PC end, and a 9-pin male
sub-D connector for the 7900 Series end.

The following table shows the pin-out and the connections for both types of cable:

PC Port

25-Pin

9-Pin

7900 series

Female

Female

9-Pin Male

Signal Name

Pin #

Pin #

Pin #

Signal Name

TXD

2

3

3

RXD

RXD

3

2

2

TXD

GND

7

5

5

GND

Shielded cables and null modems are readily available from Radio Shack or a variety of computer stores.

HyperTerminal

The following configuration should be used in HyperTerminal:

Port Settings:

115200

Data Bits:

8

Parity:

None

Stop bits:

1

Flow Control:

None

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Содержание 7900 Series

Страница 1: ... Revised 2012 06 30 page 1 of 165 7900 Series Industrial Gigabit Ethernet Switch User Manual Installation Guide ...

Страница 2: ... Based 24 XML Settings Download 24 Rate Limiting 24 TROUBLESHOOTING 25 Web Software Configuration 26 Web Management 26 Administration System 29 Administration SNMP 33 Administration Fault 34 Administration Slots 35 DHCP Server Setup Profiles 36 DHCP Server Setup IP Maps 38 DHCP Server View Bindings 43 DHCP Relay Local IP Setup 44 LLDP Configuration 47 LLDP Ports 48 LLDP Status 49 LLDP Statistics 5...

Страница 3: ...elp Rate Limiting 140 Help User Management 141 Help Other 142 CLI Commands 143 Help 143 Logout 143 Show Add or Delete ARL Entries 144 Configuration Device Operations 145 Show or Set CIP Configuration 146 Save or Reset the Configuration Settings 147 Show or Set IGMP Configuration 147 Show or Set Mirror Configuration 148 Show or Set N Ring Configuration 149 Show or Set N View Configuration 149 Ping ...

Страница 4: ...e 4 of 165 Example 5 Basic understanding of Overlapping VLANs 159 Example 6 Basic understanding of VLANs with Multicast Filtering 159 KEY SPECIFICATIONS 160 Appendix A XML Settings File Example 162 N TRON Limited Warranty 165 ...

Страница 5: ...onmental Specifications Autosensing 10 100 Base TX Duplex and MDIX Offers Rapid Spanning Tree Protocol Trunk with other N Tron trunking capable switches Store Forward Technology Plug and Play IGMP Support Rugged Din Rail Enclosure Redundant Power Inputs 10 30 VDC Onboard Temperature Sensor Configuration Backup via optional SD Card NTCD 128 Full SNMP Web Browser Management with detailed ring map an...

Страница 6: ...zardous Connection or disconnection in an explosive atmosphere could result in an explosion NTCD 128 Configuration Device Ideal for saving or restoring switch configuration parameters quickly without the need for a computer or software One configuration device per switch is recommended The configuration device is inserted into the front of the 7900 CPU Module ...

Страница 7: ...implied warranties of merchantability or fitness for a particular purpose In no event shall N Tron Corporation be liable for any incidental special indirect or consequential damages whatsoever included but not limited to lost profits arising out of errors or omissions in this manual or the information contained herein Warning Do not perform any services on the unit unless qualified to do so Do not...

Страница 8: ...quipment may be impaired LASER SAFETY 7900CPU with these SFPs 1000BaseLX NTSFP LX 40 40 kilometers 1000BaseLX NTSFP LX 80 80 kilometers CAUTION CLASS 1 LASER PRODUCT Do not stare into the laser SUPPORT Contact Information N Tron Corporation 3101 International Drive Building 6 Mobile AL 36606 TEL 251 342 2164 FAX 251 342 6353 Website www n tron com Email N TRON_Support n tron com ...

Страница 9: ...dous 2 WARNING Install only in accordance with Local National Codes of Authorities having jurisdiction 3 WARNING This equipment is suitable for use in Class I Div 2 Groups A B C D or Non Hazardous Locations Only 4 WARNING Explosion Hazard Substitution of Components May Impair Suitability For Class I Div 2 5 WARNING Explosion Hazard Do not remove SD Card unless power has been disconnected or the ar...

Страница 10: ... 2 Unscrew the two thumb screws for the filler panel or module that you are replacing 3 Using both hands pull on both thumb screws to slide the filler panel or module you are replacing 4 Align the new module such that it slides on the rails and firmly push it into the unit 5 Screw both thumb screws down till they are finger tight 6 Reapply the power and configure the slots on the 7900 either throu...

Страница 11: ...dule such that it slides on the rails and firmly push it into the unit 5 Screw both thumb screws down till they are finger tight 6 Reapply the power to the switch NOTE All configuration settings are saved to the NVRAM which is stored locally on the CPU Module If you replace the CPU Module all settings will move with the CPU Module You can save and download a custom configuration to a TFTP server T...

Страница 12: ...place To remove the unit from the 35mm din rail place a flat head screwdriver into the release clip at the bottom of the unit and push down on the clip until it disengages from the bottom of the unit from the din rail Lift the bottom of the unit up at an approximate 45 upward angle to completely remove the unit Most N Tron products are designed to be mounted on industry standard 35mm DIN Rail Howe...

Страница 13: ...place top edge of the bracket on the back of the unit against two screws at a 45 upward angle Lower the bottom of the unit until it is flush with the wall and secure the bottom of the unit with two more screws To remove the unit from a wall remove the bottom two screws that secure it to the wall and slide the unit up until the top two screws will fit through the larger holes on the unit The switch...

Страница 14: ...there is a fault NOTE The RJ45 data port has two LED s located at the side of the connector The bottom LED indicates LINK status and the top LED indicates ACTIVITY LED s The table below describes the operating modes LED Color Description GREEN Power is Applied and there are no faults RED Power is Applied and there is a fault OFF Power is OFF LNK GREEN 10 100 1000Mb Link between ports OFF No Link b...

Страница 15: ...stays ON GREEN Note Only 1 power supply must be connected to power for minimal operation For redundant power operation V1 and V2 inputs must be connected to separate DC Voltage sources This device will draw current from both sources simultaneously Use 16 28 gauge wire when connecting to the power supply Recommended 24V DC Power Supplies similar to N Tron s P N NTPS 24 5 Input AC 100V 240V Output D...

Страница 16: ...ernate users can run a drain wire lug from any of the Din Rail screws or empty PEM nuts on the enclosure When using an unused PEM nut to connect a ground lug via a machine screw care should be taken to limit the penetration of the outer skin by less than 1 4 in Failure to do so may cause irreversible damage to the internal components of the switch Note Before applying power to the grounded switch ...

Страница 17: ... Revised 2012 06 30 page 17 of 165 CAT5 CABLE SPECIFICATIONS Please reference the illustration below for your Cat5 cable specifications ...

Страница 18: ...s the use of pre manufactured Cat5E cables to ensure the best performance If this is not an option and users must terminate their own ends on the Cat5E cables one of the two color coded standards shown to the right should be utilized If a user does not follow one of these two color code standards then the performance and maximum cable distance will be reduced significantly and may prevent the swit...

Страница 19: ...900 Series end The following table shows the pin out and the connections for both types of cable PC Port 25 Pin 9 Pin 7900 series Female Female 9 Pin Male Signal Name Pin Pin Pin Signal Name TXD 2 3 3 RXD RXD 3 2 2 TXD GND 7 5 5 GND Shielded cables and null modems are readily available from Radio Shack or a variety of computer stores HyperTerminal The following configuration should be used in Hype...

Страница 20: ...ntion for a shared medium in this mode Auto Negotiation In Auto Negotiation mode the port hardware detects the mode of operation of the station that is connected to this port and sets its mode to match the mode of the station Port Mirroring A Mirroring Port is a dedicated port that is configured to receive the copies of Ethernet frames that are being transmitted out and also being received in from...

Страница 21: ...when it is used in a network A port is automatically removed from the Default VLAN when it is reconfigured to belong to another Virtual LAN because that is the most common operation But if desired the port can be included in VLAN 1 by configuring VLAN 1 last If switch ports are configured to transmit and receive untagged frames end devices are able to communicate throughout the LAN Using Tagged VL...

Страница 22: ...configure bridge ports to use the older STP when desired SNMP Traps The 7900 Series switch supports up to 5 SNMP Trap Stations to which SNMP Traps will be sent The switch supports five standard traps Link Up Link Down Cold Start Warm Start and Authentication Errors SNMP Traps will be sent to all the trap stations configured on the switch when the corresponding trap is enabled IGMP Snooping IGMP Sn...

Страница 23: ...hen a problem is detected on the Primary Coupler link the Primary Coupler link will block network traffic and the Standby Coupler link will forward network traffic While the N Link Master and Slave are in communication via the Control link only one Coupler link Primary or Standby will forward network traffic while the other Coupler link will block network traffic CIP The CIP Common Industrial Prot...

Страница 24: ...s are those that the switch detects on any port while in Learning mode A manually entered MAC address must designate the ports that the address is authorized on A non authorized MAC address will be discarded and will be shown on the intruder log Locking can be selected or not port by port XML Settings Download XML settings can be downloaded to a switch to achieve some switch configurations XML set...

Страница 25: ...ED s are ON for connected ports 4 Verify cabling used between stations 5 Verify that cabling is Category 5E or greater for 100Mbit Operation FCC STATEMENT This product complies with Part 15 of the FCC Rules for a Class A device Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including inte...

Страница 26: ...12 06 30 page 26 of 165 Web Software Configuration Web Management Enter the switch s IP address in any web browser and login to the web management feature of the 7900 Series Default User Name admin Password admin ...

Страница 27: ...figurable settings that the 7900 Series switch will support This section of the manual will go through each and every choice listed on the left hand side of the screen and explain how to configure those settings In the center of the main home page the administrator can see some basic information like what firmware revision the switch is running The firmware can be upgraded at a later time in the f...

Страница 28: ...there is a menu which is shown fully opened below The pages opened by each of the individual selections are described in the rest of this section The use of each of these pages is also described in this section In most of the descriptions only the right side of the page is shown ...

Страница 29: ...uct which allows alphanumeric and special characters _ only Contact The person to contact for system issues which should be someone within your organization Location The physical location of the switch Temperature The calculated ambient temperature near the switch This calculation is only valid after a warm up period This reading is not meant to be as exact as a calibrated temperature probe especi...

Страница 30: ...HCP clients to specify their unique identifier The identifier may be the MAC address switch name or entered as a text string or hex characters Fallback IP Address Contains the configured Fallback IP Address of the device Fallback Subnet Mask Contains the configured Fallback Subnet Mask of the device Fallback Gateway Contains the configured Fallback Gateway of the device ...

Страница 31: ...s Subnet Mask Gateway Name Contact information and the Location of the switch through the web management features depending on the IP Configuration It is recommended to change the TCP IP information through the Command Line Interface CLI initially but it defaults to the following IP Configuration Static IP Address 192 168 1 201 Subnet Mask 255 255 255 0 Gateway 192 168 1 1 ...

Страница 32: ...changed from the default IP address then the switch will use the Fallback addresses if the IP configuration isn t received from a DHCP server in 2 minutes after initial boot If Fallback address is used DHCP Client will stop sending requests If the IP Configuration is received from a DHCP server it will never fallback even if the lease is lost ...

Страница 33: ...Write and Trap Community Names are also shown here By selecting the modify button you will be able to change any of the fields listed This allows the user to set an IP address for an SNMP Trap or change the Community Names Systems that are listed as an SNMP Trap will be sent basic networking changes made to the switch such as ports going down or being linked To restore a Trap to Value Not Configur...

Страница 34: ...The notification can be indicated by the options Show Web or Show LED N Ring Manager signal faults consist of Broken Partial Break Low Partial Break High and Multiple Managers N Link Faults are reported by the N Link Master and by the N Link Slave Port Usage Fault if enabled triggers when actual usage is below the Usage Alarm Low setting or above the Usage Alarm High setting see Port Configuration...

Страница 35: ...witch may not operate correctly if the slots are not configured properly You must click Update if you wish to keep the changes Following the Update button the user may be prompted to Save and Restart the switch in order for changes to take effect The switch will save the running configuration into the NVRAM and then cycle power automatically Once the switch comes back online the settings will be u...

Страница 36: ...y processing a broadcast message Server ID Descriptive name of the DHCP server Profile Name Descriptive name of the network profile Address Pool Range of IP addresses which the profile can use Subnet Address The most restrictive subnet address calculated from the address pool range Subnet Mask The most restrictive subnet mask calculated from the address pool range Domain Name The domain name to be...

Страница 37: ... Revised 2012 06 30 page 37 of 165 DHCP Server Setup Profiles Continued ...

Страница 38: ...ab provides the way to create IP mappings with an existing network profile There are three types of mappings that can be created Dynamic Range Static Range and Single IP Before a non default Network profile has been configured After a non default Network profile has been configured ...

Страница 39: ...ent data entry formats available according to whether the relay agent type is for an N TRON or for a generic switch To create a range of static IP addresses on an N Tron relay agent switch Network Profile An existing network profile to which the IP map applies Relay Agent Type Should be set to N TRON Switch Model List of N TRON models that support this feature Remote ID A unique identifier that de...

Страница 40: ... Revised 2012 06 30 page 40 of 165 DHCP Server Setup IP Maps Continued ...

Страница 41: ...eric Port Count The number of ports on the particular relay agent switch Add Checkbox used to add an IP map for the corresponding port Port No The actual port number Remote ID The identifier that corresponds to an Option 82 Remote ID sub option used by the particular relay agent switch Circuit ID The identifier that corresponds to an Option 82 Circuit ID sub option used by the particular relay age...

Страница 42: ...individual client The following information is required Network Profile An existing network profile to which the IP map applies IP The static IP address to offer to a client Unique ID The unique identifier that must match either the client identifier Option 61 or the client s hardware address MAC Format Designates how the Unique ID is interpreted ...

Страница 43: ...ifier The client associated with the binding entry Client Hardware Address MAC The client s MAC address Client IP Address The actual IP address assigned to the binding entry Status Indicates the current status of the binding entry Release Removes the corresponding binding WARNING By releasing an IP address it is possible to end up with two physical devices with the same IP address which may cause ...

Страница 44: ... Setup tab under the DHCP Relay Local IP category shows the current state of the relay agent By selecting the Modify button you can configure general settings of the relay agent as well as configure settings on a per port basis The following describes these settings ...

Страница 45: ...ther the port will perform relay agent functionality The choices are Disabled The port will function without relay agent processing Enabled The port will relay DHCP client originated broadcast packets to the DHCP servers Assign Local IP The port will not relay DHCP client originated broadcast packets Instead the relay agent will offer the port s locally assigned IP address to the client Other Data...

Страница 46: ... Revised 2012 06 30 page 46 of 165 DHCP Relay Local IP Setup Continued ...

Страница 47: ... between Disabled and Enabled on LLDP Port settings Default 2 Seconds Notification Interval Specifies the interval between successive Notifications generated by the switch If a port sends out a notification and another port tries to send out a notification the notification will not be sent until the interval expires Default 5 Seconds Note A redundant network topology will have one or more blocking...

Страница 48: ... LLDP Transmission on the switch Receive Enables or Disables Receiving of LLDP Frames from neighbor switches Allow Management Data Allow the Transmission of Management type information For example IP Address of switch Port Description System Name and Vlan information Allow Notifications Notifications are transmitted when local or remote data changes ...

Страница 49: ...ich the neighbor information was received Neighbor MAC MAC address of neighbor switch Corresponds to the LLDP Chassis ID TLV Neighbor IP IP address of neighbor switch Corresponds to the LLDP Management Address TLV Neighbor Port Description Description of the neighbor Port from which the LLDP frame was sent Neighbor System Name The system s administratively assigned name on the neighbor switch Neig...

Страница 50: ...otal number of LLDP frames received by the local switch Discarded Frames The total number of frames discarded due to incorrect TLV s in frame Error Frames Total count of all LLDP frames received with one or more detectable errors Neighbor Age Outs Total count of the times that a neighbor s information has been deleted from the switch because the Time to Live TTL has expired LLDP Port Status Local ...

Страница 51: ...port This can be Yes No or Auto Auto is the default Flow Control State This configurable field displays the existing flow control status of each port When enabled the individual port supports half duplex back pressure and full duplex flow control The default is Disabled Port State The current RSTP status of a port It may contain Disable Discarding Learning Forwarding PVID This configurable field d...

Страница 52: ... Revised 2012 06 30 page 52 of 165 Ports Configuration Continued ...

Страница 53: ... Continued The User can click on the Port Number to configure each port individually This will allow the user to change the port s settings for the following fields Admin Status Speed and Duplex Cross Over Flow Control PVID Usage Alarm Low Usage Alarm High ...

Страница 54: ... Revised 2012 06 30 page 54 of 165 Ports MAC Security Learning MAC Security is reached from the left hand navigation under Ports ...

Страница 55: ...inued The Learning tab allows the administrator to control the learning or locking modes for the ports Locked is the secure mode Learning builds an internal list of authorized MAC addresses based on an approved LAN When the current mode is Learning no ports are secured ...

Страница 56: ... 30 page 56 of 165 Ports MAC Security continued In Locked mode Secured Ports shows the ports that are presently secured Note when N Ring and or N Link are used the N Ring N Link ports will not have MAC Security enabled ...

Страница 57: ...urrent mode When transitioning from Learning to Locked the Address Resolution Logic ARL table represents the authorized MAC addresses with the addition of any manually entered addresses refer to Authorization List section below Transitioning from Locked to Learning clears the ARL for all ports ...

Страница 58: ...zation Configuration page which allows the administrator to add new entries delete existing entries or edit authorized ports of existing entries Selecting Delete removes the associated entry Selecting Add displays the MAC Authorization Entry page showing default values for the administrator to modify see below When an entry number hyperlink is selected this same page is displayed except it shows t...

Страница 59: ...ccurrence of the intruder is listed The log is ordered by most recent first based on the system time The maximum number of entries is 100 If more than 100 intruders are detected the oldest entries are deleted The log is not saved through a power cycle An entry can be individually removed from the log by selecting the associated Delete button All entries or entries specific to a port can also be re...

Страница 60: ...y other port that is being monitored The Mirroring tab under the Ports category displays the status including the list of Source Ports and the Destination Port that the Sources are being mirrored to Mirrored Data Only can be selected and this selects for mirrored data only to be transmitted to the destination port as opposed to mirrored data and whatever other data is otherwise destined for the de...

Страница 61: ... can enable the status of port mirroring left diagram below and select source ports and the destination port that the source ports will be mirrored to right diagram below The check boxes can be used to select the ports that will be mirrored to the destination port ...

Страница 62: ... Revised 2012 06 30 page 62 of 165 NOTE Since the gigabit ports cannot be destination ports they are not available on the pull down menu ...

Страница 63: ...tton you can select a trunk group Note RSTP must be disabled in order to use the Trunking feature Two ports of the same speed can constitute a valid trunk Only 1 Trunk per switch can be created All trunk ports must be at the same speed and duplex mode If a port is not linked there could be difficulty as to similar speed and duplex mode It is best to hard code speed and duplex mode for each trunkin...

Страница 64: ...s included when evaluating traffic priority Include 802 1p This field displays the status of whether or not to include the IEEE 802 1p COS Class of Service in the TQ decision When enabled the IEEE 802 1p COS is included when evaluating traffic priority Force High Priority This field displays the Force High Priority status When enabled the port based priority is included in the TQ decision for all ...

Страница 65: ...he Modify button the administrator can independently configure the ports for different QOS functionality Once these fields are filled in to meet the needs of the administrator s network the changes may be updated by clicking the Update button at the bottom of the page ...

Страница 66: ...t of MIB Parameters Each port has a separate counter for each parameter This gives users the ability to see what kind of packets are going over which ports At the bottom of each page for each port there are two buttons Refresh will update the statistics for that port number and Clear will reset all the counters for that port number ...

Страница 67: ...shows all the ports on the switch and will display a bar graph showing the percentage of bandwidth being used These figures and bars are for a general feeling of what the bandwidth usage is N Tron recommends the use of N View in order to get a precise bandwidth usage figure The scale can be adjusted for the task at hand ...

Страница 68: ...r not to replace the incoming VID tag with the port s designated VID Perform Ingress Filtering Specifies whether or not to filter out ingress frames when a VID violation is detected Discard Non Tagged for Ports Specifies whether or not non tagged ingress frames are dropped by the selected ports Remove Ports from Default VLAN when Added to Other VLAN Specifies whether or not to remove ports from De...

Страница 69: ...rwise Ports are added to group1 if a deletion leaves a port with no group If it is desired to have a port on group1 and also on other group s configure group1 last to achieve that or deselect Remove Ports from Default VLAN when Added to Other VLAN Note RSTP on overlapping VLANs is not supported and the system will automatically disable RSTP on all but the lowest VID VLANs that have overlapping por...

Страница 70: ...acters _ only Allow Management Specifies whether or not all ports in this VLAN are management ports Change PVID of Member Ports Specifies whether or not the PVID of the member ports is set to this VLAN ID Port No This is the port index Port Name Descriptive name of the port Group Member Specifies whether or not the port is included in the group Untag on Egress Specifies whether or not egress frame...

Страница 71: ...page allows users to modify this variable to meet their needs After selecting the Modify button the user will be presented with a page that allows the number to be entered into and updated The default aging time is 20 seconds Note If the switch is an active participant of an N Ring then the N Ring Aging Time will be used instead of the Bridging Aging Time ...

Страница 72: ...e used to statically assign a MAC address access to a single port on the switch Following the Add button on the page above the administrator must enter a valid MAC address and associate it with a port number on the switch Once the administrator hits the Update button the changes will take effect instantly Once a static MAC address has been added it will be displayed in a list on the main page unde...

Страница 73: ...esses Continued Following the Remove button on the page above an administrator can select a static MAC address from the list using a pull down menu After selecting the MAC address the administrator may press the Remove button on this page to remove the entry ...

Страница 74: ...enter a valid Multicast Group Address and associate it with a port number or list on the switch Once the administrator clicks on the Add button the changes will take effect instantly Note If there are multiple ports on different VLANs the 7900 will apply the static multicast address to the lowest VLAN ID that is associated with one of the ports assigned to the static multicast address So if the lo...

Страница 75: ... switch Using the pull down menu the administrator should select the desired address to be removed Then click on the Remove button at the bottom of the page Note If there are multiple ports on different VLANs the 7900 will apply the static multicast address to the lowest VLAN ID that is associated with one of the ports assigned to the static multicast address So if the lowest VLAN ID contains all ...

Страница 76: ...using the Modify button and also displays the existing Enabled or Disabled status of this feature The default is disabled When disabled the switch generates no Ethernet traffic for this purpose but can still present some information gathered passively The IP field shows an Auto detected or manually entered IP address If there is a MAC address for the port and an IP address was not discovered there...

Страница 77: ...used to detect their IP Address Invoking the Assign IP button on the example above the administrator will be presented with a form in which to enter a manually assigned IP as below When an IP has been manually entered a button is provided to Delete IP and invoking it will allow the administrator to delete the manual association of an IP to that MAC ...

Страница 78: ...ory will display the RSTP information for the first VLAN Using the pull down menu at the top of the page an administrator can choose which VLAN to configure RSTP on Once the VLAN is selected the administrator may configure the bridge by clicking on the Configuration link in the middle of the page ...

Страница 79: ...N The administrator or user can see the current RSTP status of the ports on that VLAN by clicking on the here link to view RSTP Port Configuration at VLAN Note It is recommended that RSTP rings consist of RSTP capable switches Trunking must be disabled in order to use RSTP Do not create redundant links unless either RSTP or N Ring is enabled RSTP on overlapping VLANs is not supported and the syste...

Страница 80: ...rent RSTP status of the ports on that VLAN This will show information such as the Path Cost and the Port State If the switch sees a redundant path it will put the port with the highest Path Cost into Blocking mode where it will discard packets coming in on that port In the example below A3 is a redundant port with port A2 therefore A2 is forwarding and A3 is discarding ...

Страница 81: ... Revised 2012 06 30 page 81 of 165 If the administrator selects one of the ports on the previous screen he or she can change the Port s Path Cost Priority and the status of Admin Edge and Auto Edge ...

Страница 82: ...c configuration settings By default IGMP is enabled Following the Modify button the administrator will see a list of configurable fields for the IGMP configuration Once these fields are filled in to meet the needs of the administrator s network the changes may be updated by clicking the Update button at the bottom of the page ...

Страница 83: ... 83 of 165 IGMP Configuration Continued The IGMP Status pull down allows the user to enable or disable IGMP completely The Query Mode pull down allows the user to set query mode for Automatic the default On always or Off never ...

Страница 84: ...tinued The Router Mode pull down allows the user to choose router mode Auto allows for dynamically detected and manually set router ports Manual allows only for manually set router ports None allows no router ports The user can specify the manual router ports ...

Страница 85: ...used IGMP Groups will be removed and traffic with those multicast addresses will be treated as normal multicast If unchecked then unused IGMP Groups are not removed and traffic with those multicast addresses will be limited The default is checked Note that IGMP Groups are not retained through a power cycle ...

Страница 86: ...oups tab under the IGMP category will display a list of IGMP groups based on the Group IP and the port number that it is associated with The Show Routers tab under the IGMP category will display a list of Auto detected Router IPs and the port numbers that they are associated with ...

Страница 87: ...tions The factory default is that the Router Multicast Data Filter is enabled for all ports so any router ports do NOT get DATA frames with KNOWN multicast destination addresses unless a join to a specific multicast address has been received on that port Joins override an rfilter If rfilter is disabled router ports do get DATA frames with KNOWN multicast destination addresses Rfilter can be set fo...

Страница 88: ... Revised 2012 06 30 page 88 of 165 IGMP RFilter Continued Modifying rfilter port settings ...

Страница 89: ...and the interval between packets Following the Modify button on the above example the administrator can modify the variable to change the frequency with which N View reports information Increasing the interval will slow the update rate Decreasing the interval will allow N View to report more frequently Additionally you may Disable or Enable N View altogether ...

Страница 90: ...6 30 page 90 of 165 N View Ports The Ports tab under the N View category will display a list of all the configured ports on the 7900 unit along with the ports transmitting multicast packets and MIB stats respectively ...

Страница 91: ...e 91 of 165 N View Ports Continued Following the Modify button on the above example the administrator can modify these two variables to enable or disable multicast out of the port and if MIB stats are sent out for those ports ...

Страница 92: ...s for example Switch is currently using N Ring Aging Time 20 Seconds Once these fields are filled in to meet the needs of the administrator s network the changes may be saved by clicking the Update button at the bottom of the page NOTES 1 N Ring Manager cannot have RSTP or Trunking enabled 2 RSTP N Ring are different modes and cannot share links or segments along those lines See the examples in th...

Страница 93: ...0 page 93 of 165 N Ring Configuration Continued The N Ring Mode is one of three as below If N Ring Mode is Manager then a pull down allows selection as available of ports A1 A2 B1 B2 C1 C2 D1 D2 or E1 E2 as N Ring ports ...

Страница 94: ...nges It is up to the administrator to ensure that VLANs are configured correctly on the N Ring manager and all N Ring members 2 When the N Ring manager and all N Ring Members are in defaults changing the N Ring manager to use a Tagged VLAN requires no user interaction to allow non ring traffic to pass through the ring This works because changing to a Tagged VLAN does not remove the ring ports from...

Страница 95: ...ion from ring members The default is 1000 Sign On Match Packets The number of times the switch count must match before starting the sign on process The default is 3 Sign On Interval The interval of time to wait in milliseconds before requesting subsequent sign on information from ring members when the ring is broken The default is 3000 Sign On Info Spacing Multiplier The amount of time to wait in ...

Страница 96: ... Revised 2012 06 30 page 96 of 165 ...

Страница 97: ...the N Ring category will display the N Ring status Below is an example of N Ring Status from a switch in defaults N Ring Auto Member that is not an N Ring Manager and has not become an Active N Ring Member Below is an example of N Ring Status from an Active N Ring Member ...

Страница 98: ...f e6 a0 192 168 1 217 255 255 255 0 N TRON Switch A2 A1 3 00 07 af ff ef 80 192 168 1 221 255 255 255 0 N TRON Switch A2 A1 4 00 07 af ff e4 c0 192 168 1 241 255 255 255 0 N TRON Switch A2 A1 5 00 07 af ff d5 e0 192 168 1 229 255 255 255 0 N TRON Switch A2 A1 6 00 07 af ff d7 00 192 168 1 228 255 255 255 0 N TRON Switch A2 A1 7 00 07 af ff e6 c0 192 168 1 223 255 255 255 0 N TRON Switch A2 A1 8 00...

Страница 99: ... 1 227 255 255 255 0 N TRON Switch A2 A1 1 00 07 af ff ef 60 192 168 1 224 255 255 255 0 N TRON Switch A2 A1 2 00 07 af ff e6 a0 192 168 1 217 255 255 255 0 N TRON Switch A2 A1 3 00 07 af ff ef 80 192 168 1 221 255 255 255 0 N TRON Switch A2 A1 4 00 07 af ff e4 c0 192 168 1 241 255 255 255 0 N TRON Switch A2 A1 5 00 07 af ff d5 e0 192 168 1 229 255 255 255 0 N TRON Switch A2 A1 6 00 07 af ff d7 00...

Страница 100: ...pdate Pause Print 0 Active Members Detected In Current N Ring 0 reporting Switch No MAC Address IP Address Subnet Mask Name Ports RM 00 07 af 00 b1 40 192 168 1 135 255 255 255 0 N TRON Switch A2 A1 The screenshot below shows N Ring Manager Status when a Lower N Ring Port A1 or E1 is not receiving self health frames all the way around the N Ring though the other high A2 E2 N Ring port is N Ring Pa...

Страница 101: ...mber N Link Slave N Ring Member N Link Master N Ring Member Partner Link N Ring Segment Control Link N Ring Auto Member N Rng Manager N Link Coupler N Ring Member N Link Couper N Ring Member N Ring Auto Member N Ring Auto Member Primary Coupler Link Standby Coupler Link Coupler Port Default TX4 Control Port Auto Detected Coupler Port Default TX4 Control Port Default TX3 Partner Port Auto Detcted P...

Страница 102: ...t any needed configuration If not using default configuration choices the administrator may also need to configure the Default Coupler port on the N Link Slave There must be a direct link between the Master and Slave Control ports Use of media converters or other switches is not supported There must be a direct link between the Master and Slave Partner ports Use of media converters or other switch...

Страница 103: ...g the Modify button on the above example the administrator will see a list of configurable fields for the N Link configuration as below The port configured as the Default Coupler Port will be used as the Standby Coupler port if the switch detects an N Link Master and becomes an N Link Slave Once these fields are filled in to meet the needs of the administrator s network the changes may be saved by...

Страница 104: ...s as below If N Link mode is Master then the administrator must configure the Control Port default TX3 and the Primary Coupler Port default TX4 Once these fields are filled in to meet the needs of the administrator s network the changes may be saved by clicking the Update button at the bottom of the page ...

Страница 105: ...witches is not supported This port will be detected automatically Coupler Port The port being used to establish a redundant path for Ethernet data transmission Coupler Port State Blocking Forwarding Status No errors will show OK otherwise a description of the Faults detected N Link Partner Information State Current N Link mode of switch MAC The MAC Address of the N Link Partner switch Coupler Port...

Страница 106: ... Revised 2012 06 30 page 106 of 165 N Link Status Continued Below is an example of N Link Status from an N Link Coupler switch Below is an example of N Link Status from an N Link Master switch ...

Страница 107: ... Revised 2012 06 30 page 107 of 165 N Link Status Continued Below is an example of N Link Status from an N Link Slave switch ...

Страница 108: ... Revised 2012 06 30 page 108 of 165 Below is an example of N Link Status from an N Link Master and Slave where the Primary Coupler link is broken ...

Страница 109: ... Revised 2012 06 30 page 109 of 165 N Link Status Continued Below is an example of N Link Status from an N Link Master and Slave where the Standby Coupler link is broken ...

Страница 110: ... Revised 2012 06 30 page 110 of 165 Below is an example of N Link Status from an N Link Master and Slave where the Control link is broken ...

Страница 111: ... Revised 2012 06 30 page 111 of 165 N Link Status Continued Below is an example of N Link Status from an N Link Master and Slave where the Partner link is broken ...

Страница 112: ...ted Packet Interval for Class 1 multicast connections in milliseconds Requests for less than this value will be rejected Default 1 second Unicast RPI The minimum Requested Packet Interval for Class 3 unicast connections in milliseconds Requests for less than this value will be rejected Default 1 second Following the Modify button on the above example the administrator can modify the variables Addi...

Страница 113: ... The ODVA Device Type is Communications Adapter 0x0C hex Major Revision The Major Revision of the CIP implementation Minor Revision The Minor Revision of the CIP implementation Serial Number hex CIP Serial number unique across all N Tron CIP devices This is the last 4 octets of the base switch MAC Connection Information Number of Multicast Connections Current number of CIP Ethernet IP class 1 mult...

Страница 114: ...rrent configurations and without having to send the unit back to N Tron for updates in the future It is important not to cycle power on the switch or interrupt the data connection between the TFTP server and the switch while you are flashing or uploading downloading a config file The switch will not stop working if this does occur but the administrator will have to retransfer the file Also an XML ...

Страница 115: ...ses the administrator may choose to upload or down load only certain configuration settings or to retain his current network settings These choices are available as below For more detail on the choices reference Help Firmware Config in this user manual or from the actual switch ...

Страница 116: ...f 165 Support Web Site and E mail If at any point in time you get confused or would like additional support directly from N Tron you may visit N Tron s web site or e mail N Tron directory with the links provided for more information ...

Страница 117: ...Broadcast or Multicast Rate Limiting These are ingress filters The Broadcast Rate Limit View displays all the ports in the 7900 Series unit and lists the percentage pass rate for each port The factory defaults for 10 100 ports are 3 and for gigabit ports are 1 A Modify button is provided to change these fields ...

Страница 118: ... Revised 2012 06 30 page 118 of 165 Following the Modify button on the previous example the administrator can modify the BPCL Percentage for each port The default BPCL is 3 for all ports ...

Страница 119: ...each port A Modify button is provided to change these fields The factory default for multicast rate limiting is 100 pass rate on all ports Following the Modify button on the above example the administrator can modify the percentage for each and every port independently A selection is provided for all ports to be set at once when that is more convenient ...

Страница 120: ...management features of the switch and their access permissions Following the Add button on the above example the administrator can add another user and assign the user a username a password and the user s permissions user administrator A page should display after the administrator clicks the Add button indicating that the user was successfully added ...

Страница 121: ... the user s name and clicking the Remove button A page should follow indicating that the user was successfully removed from the list Note There are a maximum number of 5 users per switch User permissions have the right to view switch configurations and to view current port settings but cannot make any changes to these settings Admin permissions have the right to change and view any switch configur...

Страница 122: ...th the installed modules that have been configured in it Ports that are linked will turn green while ports that are not linked will show up as black The example below shows only ports 1 3 4 and 6 on the 9006TX module linked The other ports are currently in the down state not being used When the NTCD N Tron Configuration Device is inserted this is indicated by the slot being green as below ...

Страница 123: ... not The Reset button will discard all unsaved changes reset the switch and load the most recently saved configuration settings Note Upon restart if a configured configuration device is connected the switch will load the configured settings from it and save them into NVRAM The Factory button will reload N Tron s factory default configuration settings Doing so will reconfigure the 7900 switch to fa...

Страница 124: ... Revised 2012 06 30 page 124 of 165 If a Configuration Device is present that is presented ...

Страница 125: ...Help link is clicked on you will see the Overview page that will have some basic definitions and more specific choices at the top of the screen Although this page is not as detailed as the manual it gives you a basic feel for different features the 7900 offers ...

Страница 126: ... 165 Help Administration Following the Administration link on the help page the administrator or user can see some information regarding the configuration options in the Administration category on the left side of the web management ...

Страница 127: ...0 page 127 of 165 Help DHCP Following the DHCP link on the help page the administrator or user can see some information regarding the configuration options under the DHCP categories on the left side of the web management ...

Страница 128: ... 30 page 128 of 165 Help LLDP Following the LLDP link on the help page the administrator or user can see some information regarding the configuration options in the LLDP category on the left side of the web management ...

Страница 129: ...30 page 129 of 165 Help Ports Following the Ports link on the help page the administrator or user can see some information regarding the configuration options in the Ports category on the left side of the web management ...

Страница 130: ...130 of 165 Help Statistics Following the Statistics link on the help page the administrator or user can see some information regarding the configuration options in the Statistics category on the left side of the web management ...

Страница 131: ... 30 page 131 of 165 Help VLAN Following the VLAN link on the help page the administrator or user can see some information regarding the configuration options in the VLAN category on the left side of the web management ...

Страница 132: ...ge 132 of 165 Help Bridging Following the Bridging link on the help page the administrator or user can see some information regarding the configuration options in the Bridging category on the left side of the web management ...

Страница 133: ... 30 page 133 of 165 Help RSTP Following the RSTP link on the help page the administrator or user can see some information regarding the configuration options in the RSTP category on the left side of the web management ...

Страница 134: ... 30 page 134 of 165 Help IGMP Following the IGMP link on the help page the administrator or user can see some information regarding the configuration options in the IGMP category on the left side of the web management ...

Страница 135: ... page 135 of 165 Help N View Following the N View link on the help page the administrator or user can see some information regarding the configuration options in the N View category on the left side of the web management ...

Страница 136: ... page 136 of 165 Help N Ring Following the N Ring link on the help page the administrator or user can see some information regarding the configuration options in the N Ring category on the left side of the web management ...

Страница 137: ... page 137 of 165 Help N Link Following the N Link link on the help page the administrator or user can see some information regarding the configuration options in the N Link category on the left side of the web management ...

Страница 138: ...06 30 page 138 of 165 Help CIP Following the CIP link on the help page the administrator or user can see some information regarding the configuration options in the CIP category on the left side of the web management ...

Страница 139: ...165 Help Firmware Config Following the Firmware Config link on the help page the administrator or user can see some information regarding the configuration options in the Firmware Config category on the left side of the web management ...

Страница 140: ...of 165 Help Rate Limiting Following the Rate Limiting link on the help page the administrator or user can see some information regarding the configuration options in the Rate Limiting category on the left side of the web management ...

Страница 141: ...165 Help User Management Following the User Management link on the help page the administrator or user can see some information regarding the configuration options in the User Management category on the left side of the web management ...

Страница 142: ...2 06 30 page 142 of 165 Help Other Following the Other link on the help page the administrator or user can see some information regarding other links or categories on the left hand side of the web manager as above ...

Страница 143: ...description of this command will be displayed Syntax cmd Parameters cmd The command for which to get help Examples N TRON Admin The above command displays all the available commands N TRON Admin abcd Unknown Command abcd Type for a list of available commands N TRON Admin logout Logout Log out of console interface SYNTAX Logout N TRON Admin pi Ping Ping a host N TRON Admin Show a list of all comman...

Страница 144: ... 4095 Example N TRON Admin arl show No Val Age Pri Mod Usr Sta VLAN MAC I Port s 1 1 0 0 1 3333 01 07 af fa bc 80 None 2 1 0 0 1 1 01 00 5e 7f ff fa TX7 3 1 0 0 1 3333 01 07 af 00 df 48 None 4 1 0 0 1 3333 01 07 af 00 de d2 None 5 1 0 0 1 3333 01 07 af 00 de f0 None 6 1 0 0 1 3333 01 07 af 00 de f1 None 7 1 0 0 1 3333 01 07 af 00 de f2 None 8 1 1 0 0 0 1 1 00 07 af fa bc 80 CPU 9 1 0 1 1 0 01 07 a...

Страница 145: ...the configuration device Erase Erase the switch configuration on the configuration device Example N TRON Factory cfgdev info Port A 0xd080 Board ID 0x0005 5 Configuration device information Name SDS128M Model 3 Version 1 Page Size 200 Total Size 127008768 Max Clock Hz 400000 Write Cycles ns 5000000 Flags 0x00000001 N TRON Factory cfgdev compare Comparing switch configuration to the configuration d...

Страница 146: ...erval 10 ms Cache Interval 2000 ms Identity Information Product Name N TRON 7900 Vendor 1006 N TRON Device Type 0x0C Communications Adapter Major Revision 1 Minor Revision 5 Serial Number 0xAF7EAFA0 Connection Information Multicast Connections 0 Unicast Connections 0 N TRON Admin N TRON Admin cip disable Changing CIP configuration CIP Configuration Status Disabled EthIp Interval 10 ms Cache Interv...

Страница 147: ...mand Name igmp Description Show or set IGMP configuration If no parameters are specified this command will show the IGMP configuration same as show parameter Syntax igmp show status state Parameters show Show configuration status state Set the IGMP status to e nabled or d isabled Examples N TRON Admin igmp show IGMP Status Enabled IGMP Version 2 Query Mode Auto CIP Querier Status 2 Active Auto Act...

Страница 148: ...d frames tx portlist Set the source ports to mirror frames that are transmitted rx portlist Set the source ports to mirror frames that are received Examples N TRON Admin mirror show Mirror Status Disabled Destination Port TX1 Tx Source Ports None Rx Source Ports None N TRON Admin mirror status enabled dp 6 tx 1 3 5 rx 1 3 5 Mirror Status Enabled Destination Port TX6 Tx Source Ports TX1 TX3 TX5 Rx ...

Страница 149: ...ing show N Ring Mode Auto Member Aging Time 20 N TRON Admin nring ports ID Port Set 1 TX1 TX2 2 TX7 TX8 3 GB1 GB2 N TRON Admin nring mode m ports 2 Do you Want to Save Changes and Restart the System Now y n NOTES Show or Set N View Configuration Command Name Nview Description Show or set N View configuration If no parameters are specified this command will show the N View configuration same as sho...

Страница 150: ...ount Number of echo requests to send w timeout Timeout in milliseconds to wait for each reply Example N TRON Admin ping 192 168 1 119 N TRON Admin ping n 6 192 168 1 119 N TRON Admin ping t 192 168 1 119 N TRON Admin ping w 2000 192 168 1 119 Reply from 192 168 1 119 time 970ms Reply from 192 168 1 119 time 10ms Reply from 192 168 1 119 time 10ms Ping statistics for 192 168 1 119 Packets Sent 4 Re...

Страница 151: ...e Set the 802 1p Priority for the port to e nabled or d isabled pvid Set the VLAN ID for the port The range is 1 4094 ual percent Set the usage alarm low percentage The range is 0 100 uah percent Set the usage alarm high percentage The range is 0 100 security state Set the security status for all supported ports to e nabled or d isabled Examples N TRON Admin port sd 100f flow enabled dp 7 pvid 2 5...

Страница 152: ...ow Show configuration ro name Set the Authorized Community Name for SNMP Get requests rw name Set the Authorized Community Name for SNMP Set requests trap name Set the Authorized Community Name for SNMP Traps Examples N TRON Admin snmp ro users IP Address Trap Stn 1 Value Not Configured IP Address Trap Stn 2 Value Not Configured IP Address Trap Stn 3 Value Not Configured IP Address Trap Stn 4 Valu...

Страница 153: ...red Notes Show System Information Command Name Sysinfo Description Show system information Syntax Sysinfo Parameters None Example N TRON Admin sysinfo N TRON 700 7000 Series Model 7900 Boot Loader BL 2 0 6 1 0x02000601 OS Version 3 6 8 Build Date May 15 2012 at 11 41 57 Copyright Copyright c 2008 2012 N TRON Corp All rights reserved Processor 66 MHz 66000000 SDRAM Size 32 MB Flash Size 16 MB File ...

Страница 154: ...rameters Slot_Types 9006TX 9004FX 9002FX or EMPTY Examples Set N TRON Admin SysSlots a 9006TX b 9004FX c 9002FX d EMPTY Slots Configuration Slot A 9006TX Slot B 9004FX has been changed Slot C 9002FX has been changed Slot D EMPTY Changes have been made that have not been saved Press ENTER to Save Changes and Restart the System Show N TRON Admin sysslots Slots Configuration Slot A 9006TX Slot B 9004...

Страница 155: ...net mask for static config mode and IP fallback g static_gateway Static gateway address for static config mode and IP fallback Example N TRON Admin sysip IP Configuration Mode Static Static IP Address 192 168 1 225 Static subnet Mask 255 255 255 0 Static gateway 192 168 1 1 N TRON Admin sysip c dhcp IP Configuration Mode DHCP has been changed Fallback IP Address 192 168 1 225 Fallback Subnet Mask ...

Страница 156: ...n system name Private Switch browser disabled IP Configuration Static Client ID hex 0007affabc80 IP Address 192 168 1 214 Subnet Mask 255 255 255 252 Gateway 192 168 1 1 MAC Address 00 07 af fa bc 80 System Up Time 0 days 0 hours 1 mins 3 secs Name Private Switch Contact N TRON Admin Location Mobile AL 36609 Temperature 28 C 82 F Upper Threshold 100 C 212 F Lower Threshold 60 C 76 F Browser Access...

Страница 157: ...Port A6 Strips VID off packet Example 2 Basic understanding of tagged VLANs Admit Tagged Only VLAN Configuration View Ports Configuration View VLAN Status Enable VLAN ID VLAN Name Untagged Port s Tagged Port s Mgmt Port Admit Mirror Port 1 Default VLAN A3 A6 B1 B6 C1 C6 D1 D6 YES Tagged Only 0 2 VLAN 2 A1 A2 YES Tagged Only 0 Receiving Port Tagged VID in packet Destination Address Transmitting Por...

Страница 158: ...ic understanding of Hybrid VLANs VLAN Configuration View Ports Configuration View VLAN Status Enable VLAN ID VLAN Name Untagged Port s Tagged Port s Mgmt Port Admit Mirror Port 1 Default VLAN A3 A6 B1 B6 C1 C6 D1 D6 YES All 0 2 VLAN 2 A1 A2 A3 A4 YES All 0 Receiving Port Tagged VID in packet Destination Address Transmitting Port s Notes Port A1 Untagged MAC on port A2 Port A2 Unicast Traffic Port ...

Страница 159: ...me Untagged Port s Tagged Port s Mgmt Port Admit Mirror Port 1 Default VLAN YES All 0 2 VLAN 2 A1 A6 B1 B6 C1 C6 D1 D6 YES All 0 3 VLAN 3 A2 A6 B1 B6 C1 C6 D1 D6 YES All 0 4 VLAN 4 A1 A2 YES All 0 Display Static Multicast Group Address es Multicast Address Port List 01 00 00 00 00 01 1 24 01 00 00 00 00 02 1 6 8 Receiving Port Tagged VID in packet Destination Address Transmitting Port s Notes Port...

Страница 160: ...ndensing Operating Altitude 0 to 10 000 ft Shock and Vibration bulkhead mounting Shock 50g 10ms Vibration Seismic 30g 5 200Hz Triaxial Reliability MTBF 1Million Hour Connectors 10 100BaseTX Up to Twenty four 24 RJ 45 Copper Ports 100BaseFX Up to Sixteen 16 SC or ST Duplex Ports 1000BaseSX LX Two 2 LC Duplex Ports as an option Recommended Wiring Clearance Front 4 10 16 cm Side 1 2 54 cm Network Med...

Страница 161: ...nm 1310nm 1550nm Multimode Fiber Optic Cable Singlemode Fiber Optic Cable Regulatory Certifications Product Safety UL 60950 1 UL 508 ANSI ISA 12 12 01 2007 CAN CSA C22 2 No 60950 CAN CSA C22 2 No 142 CAN CSA C22 2 No 213 Emissions FCC Title 47 Part 15 Radio Frequency Devices Subpart B ANSI C63 4 2003 Industry Canada ICES 003 EN 61000 6 4 radiated and conducted Immunity EN 61000 6 2 IEC 61000 4 2 E...

Страница 162: ...guration Switch 7900 Switch Switches ______________________________________________________________________________________ Administration Administration SwitchName myname SwitchName optional 255 character limit SwitchLocation mylocation SwitchLocation optional 255 character limit SwitchContact mycontact SwitchContact optional 255 character limit Administration ____________________________________...

Страница 163: ... 1 PVID PVID ranges from 1 to 4094 Port Port PortName TX6 PortName Name of port on switch PVID 26 PVID PVID ranges from 1 to 4094 Port Ports ______________________________________________________________________________________ DHCP server DHCPServer mode delete mode must be keep or delete mode delete delete existing profiles before adding profiles default mode keep do not delete existing profiles...

Страница 164: ...e delete delete existing authorized MACs before adding authorized MACs default mode keep do not delete existing authorized MACs before adding authorized MACs ValidatePorts yes ValidatePorts optional Must be yes default or no If no invalid ports are ignored Entry MACAddress 00 07 af ff 5b c0 MACAddress 17 character limit MAC is valid on all ports listed in the ports list If the ports list is missin...

Страница 165: ...ice WARRANTIES EXCLUSIVE IF AN N TRON PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE CUSTOMER S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT N TRON S OPTION TO THE FULL EXTENT ALLOWED BY LAW THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES TERMS OR CONDITIONS EXPRESS OR IMPLIED EITHER IN FACT OR ...

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