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USING BRIDGE MANAGEMENT OPTIONS

5-45

Figure 5-19

Bridge Protocol Parameters Screen

The Bridge Protocol Parameters Screen displays typical bridge
description and identification data in the top portion of the screen for the
bridge. Refer to the section on General Screen Information in Chapter 3 if
you need explanation for these fields.

The fields displayed on the rest of the screen indicate the protocol
parameters for the bridge. Only four of these fields contain data that can
be changed or updated: Bridge Max Age, Bridge Hello Time, Bridge
Forward Delay, and Bridge Priority fields. The following provides brief
explanations for all protocol fields that appear on this screen.

5.5.1.1

Bridge Protocol Parameters Screen Fields

Bridge ID:

Displays the unique bridge identifier of the bridge. The identifier consists
of the Bridge Priority and Ethernet Address of the bridge.

06/11/91 12:51:31 SPECIAL DATABASE

Network Address: 00-00-1D-00-10-CA Type: NB30
Bridge Name: CABLETRON REMOTE BRIDGE SW Version: 1.10.00
Location: LOCAL HW Version: 1
Uptime: 01 Days 01 Hours 33 Minutes Status: ON_LINE

Bridge ID: 00-00-00-00-1D-00-10-CA Time Since Topology Change: 0

Topology Change Count: 1 Topology Change: 0

Root Cost: 0 Desig. Root: 00-00-00-00-1D-00-10-CA

Root Port: 0 Max Age: 20 Hold Time: 1

Hello Time: 2 Forward Delay: 15

Bridge Max Age: 20 Bridge Hello Time: 2

Bridge Forward Delay: 15 Bridge Priority: 8000

RETURN SAVE PORT PARAMETERS

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Summary of Contents for NB30

Page 1: ...NB30 LM LOCAL MANAGEMENT FOR THE CABLETRON SYSTEMS NB30 BRIDGE USER S MANUAL CABLETRON SYSTEMS P O BOX 5005 ROCHESTER NH 03867 5005 ...

Page 2: ......

Page 3: ...UDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright June 1991 by Cabletron Systems Inc P O Box 5005 Rochester NH 03867 5005 All Rights Reserved Printed in the United States of America Order Number 9030290 June 91 NB30 LMm N...

Page 4: ...NOTICE ii ...

Page 5: ...B30 3 1 GENERAL SCREEN INFORMATION 3 1 3 2 GENERAL TIPS 3 2 3 3 LOCAL MANAGEMENT MENU TREE 3 2 CHAPTER 4 BRIDGE INFORMATION SCREEN 4 1 THE BRIDGE INFORMATION SCREEN 4 1 4 1 1 Selecting the Ethernet Port 4 2 4 1 2 Bridge Information Screen Fields 4 2 4 2 AVAILABILITY OPTIONS 4 7 CHAPTER 5 USING BRIDGE MANAGEMENT OPTIONS 5 1 THE SETUP OPTION 5 2 5 1 1 Setup Option Screen Fields 5 3 5 1 2 Editing the...

Page 6: ...y Option 5 33 5 4 1 6 The Display Entry Option 5 34 5 4 1 7 The Display Range Option 5 36 5 4 2 The Special Database Option 5 38 5 4 2 1 The Special Database Screen Fields 5 39 5 4 2 2 Adding Special Database Filters 5 40 5 4 2 3 Deleting Special Database Filters 5 42 5 4 2 4 Editing Special Database Filters 5 43 5 5 THE BRIDGE PROTOCOL OPTION 5 44 5 5 1 Bridge Protocol Parameters Screen 5 44 5 5 ...

Page 7: ...the password and also lists the necessary terminal and cable configurations for communicating with Local Management through the console port on the NB30 Chapter 3 Using Local Management for Cabletron Systems NB30 provides general screen information and general tips for using Local Management for the NB30 A Menu Tree is included to help you get around Local Management Chapter 4 Bridge Information S...

Page 8: ...gement provides unique management and control capabilities for the Cabletron Systems NB30 With Local Management you can monitor and fine tune the operation of your bridge by isolating network traffic and channeling it to its proper destination At the same time you will improve your network performance Local Management provides the necessary management tools for your NB30 to operate at its full cap...

Page 9: ...Ms to act as a redundant data path When one of the SPIMs is set as a redundant data path parameters can be set in Local Management so that the primary path will poll a repeater module installed in an MMAC If the repeater module in the MMAC does not respond within a user defined poll interval and the retry interval is exceeded the redundant data path will automatically pick up communication This fe...

Page 10: ...INTRODUCTION 1 4 ...

Page 11: ...erminal or terminals running emulation programs for these series of terminals The terminal or emulating terminal is attached to the port labeled CONSOLE on the bridge For instructions on setting up your terminal and the keyboard map refer to your terminal manual The terminal configurations must be set as follows so that the terminal can communicate with Local Management for the NB30 2 1 1 VT200 or...

Page 12: ...s Only VT320 DEC 423 Data Leads Only Transmit any option Auto Answerback No Auto Answerback Keyboard Set up Menu Keys Typewriter Keys Auto Repeat any option Keyclick any option Margin Bell No Margin Bell Warning Bell Warning Bell Auto Answerback No Auto Answerback 2 1 2 Prime 200 Series Setup If you have a PRIME 200 series terminal press SETUP to access the Setup Directory Cursor Type any option B...

Page 13: ...l Management is accessed by an RS232 cable available from Cabletron Systems This cable connects the terminal to the bridge s Console port The pin out for a cable with a 25 pin or a 9 pin connector at the terminal end of the cable and a 9 pin connector at the bridge end of the cable should be configured as shown in Section 2 2 1 or 2 2 2 2 2 1 VT 200 or 300 Series 9 Pin Male Connector to 25 Pin Fem...

Page 14: ... Ground to Pin 7 Logic Ground Pin 8 Clear to Send to Pin 4 Request to Send and Pin 5 Clear to Send Pins 6 8 and 20 are jumpered together 2 3 ACCESSING LOCAL MANAGEMENT This procedure assumes that the 9 to 25 pin RS232 cable available from Cabletron Systems is being used to connect the terminal to the Bridge To access Local Management follow the procedure below 1 Plug the 9 pin end of the RS232 cab...

Page 15: ...assword into the Enter Password field b Press Return If you enter an invalid password the message Invalid Password Entered will appear on the screen When the correct password is entered the Bridge Information Screen Figure 2 3 will appear on the terminal Local Management for the NB30 is now ready for operation C Cabletron Systems Inc 1991 TERMINAL TYPE MENU 1 VT 100 Series 2 PRIME 200 Series Selec...

Page 16: ...0 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 01 Days 01 Hours 33 Minutes Port Enet Port 1 Remote Port Port Address 00 00 1D 00 10 CA Port name ETHERNET PORT 1 REMOTE PORT Port Type 802 3 SPIM A RS449 Port Status LINK OK SQE ON LINK ON DCE READY Net Name LAN_1 REMOTE LINK Frames Forwarded 8504 Remote I D 00 00 1D 00 36 B8 Frames Received 628104 Frames ...

Page 17: ...these common fields is provided here for your convenience Network Address Displays the Ethernet address of the bridge in a hexadecimal format XX XX XX XX XX XX Bridge Name Displays the user defined name up to 32 characters available if one has been assigned to the bridge The default name is CABLETRON REMOTE BRIDGE Location Displays the user defined name up to 14 characters available to indicate th...

Page 18: ... are accessed through this screen From the Bridge Information Screen the menu branches out For instance there are six options available at the Bridge Information Screen Four of these options Setup Port Counters Filtering Database and Bridge Protocol lead to additional screens These screens move from general to more specific For example from the Filtering Database Screen you can view the total numb...

Page 19: ...ATE DISPLAY RANGE FILTERING DATABASE RETURN DELETE DISPLAY RANGE SPECIAL DATABASE ADD FILTER RETURN SPECIAL DATABASE RETURN SAVE FILTER FILTERING DATABASE RETURN DISPLAY RANGE FILTERING DATABASE RETURN DISPLAY RANGE SPECIAL DATABASE RETURN SAVE FILTER DELETE FILTER FILTERING DATABASE RETURN DISPLAY RANGE DISPLAY RANGE RETURN NEXT PAGE DISPLAY RANGE RETURN PREV PAGE SELECT TERMINAL TYPE PORT FILTER...

Page 20: ...USING LOCAL MANAGEMENT 3 4 ...

Page 21: ...dge identifying data and descriptive information appear in the top portion of each screen Refer to the section on General Screen Information in Chapter 3 if you need explanation for these fields Figure 4 1 Sample Bridge Information Screen 06 11 91 BRIDGE INFORMATION Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime...

Page 22: ...rn key until the appropriate port appears The Port field is a toggle field that alternately displays Enet Port 1 and Enet Port 2 when you press Return Information for the appropriate Ethernet Port will appear 4 1 2 Bridge Information Screen Fields Port Indicates the bridge port Enet Port 1 Enet Port 2 or Remote Port that corresponds to the information in the respective columns Port Address Display...

Page 23: ...Pair Single Port Interface Module with one DB 9 Port SPIM F1 A Fiber Optic Single Port Interface Module with one pair of fiber optic SMA Ports SPIM F2 A Fiber Optic Single Port Interface Module with one pair of fiber optic ST Ports SPIM C A Coaxial Single Port Interface Module with one BNC Port SPIM A An AUI Single Port Interface Module with 1 female AUI Port Not Installed No SPIM is installed for...

Page 24: ...a packet is transmitted from the bridge through the Ethernet SPIM LINK OK SQE OFF Indicates that a proper link is established with the network and SQE is disabled on the transceiver connected to the bridge CARRIER LOST If a SPIM A is installed in the port this indicates that the port has lost communications with the network For other SPIMs this message may indicate that the SPIM is not properly in...

Page 25: ...o an unplugged cable YELLOW ALARM Indicates a loss of synchronization has occurred on the receive link of the NB30 on the other side of the Remote link RED ALARM Indicates a loss of synchronization has occurred on the receive link of the bridge RS449 and V 35 Module Port Status Alarm Messages NO EXT CLOCK Indicates that the Remote port is not receiving a clock signal from the DCE DCE NOT READY NO ...

Page 26: ...ing in The NB30 at the other end of the link will be operating in one of the following modes Primary Indicates that the NB30 at the other end of the link is acting as the primary bridge generating BPDUs for determining the bridge s position in the network Secondary Indicates that the NB30 at the other end of the link is acting as the secondary bridge passing BPDUs for determining the bridge s posi...

Page 27: ...at the bridge has forwarded out of both the Ethernet and Remote ports Frames Received Indicates the total number of frames the bridge has received on both the Ethernet and Remote ports Frames Filtered Indicates the total number of frames filtered by the Ethernet side of the bridge Errors Displays the total number of network errors that have occurred This count is broken down at the Network Errors ...

Page 28: ... provides a breakdown of frame activity for each port on the bridge Counts of valid frames forwarded and frames received but discarded are displayed An additional option the Network Errors Option displays the number of errors detected per port This option is explained in Section 5 3 Filtering Database With this option you can add or delete addresses from the Source Address Table for the Acquired D...

Page 29: ...made to affect the time interval between transmission of BPDUs Bridge Forward Delay Time or the maximum time or age of data before it is discarded The part of the bridge identifier used in priority comparisons can also be changed Changes made that affect bridge topology are recorded and displayed This option explained in Section 5 5 Exit Selection of this option will exit you from Local Management...

Page 30: ...BRIDGE INFORMATION SCREEN 4 10 ...

Page 31: ...Bridge Information Screen 06 11 91 BRIDGE INFORMATION Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 01 Days 01 Hours 33 Minutes Port Enet Port 1 Remote Port Port Address 00 00 1D 00 10 CA Port name ETHERNET PORT 1 REMOTE PORT Port Type 802 3 SPIM A RS449 Port Status LINK OK SQE ON LINK ON DCE READY Net Name LAN...

Page 32: ... highlight SETUP at the bottom of the Bridge Information Screen 2 Press Return The Bridge Setup Screen Figure 5 2 will appear Figure 5 2 Bridge Setup Screen 06 11 91 BRIDGE SETUP Last Reset 06 11 91 07 10 00 Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 01 Days 01 Hours 33 Minutes Status ON_LINE Restore Default...

Page 33: ...Refresh Time on Bridge Setup Screen back to 2 seconds Number of Restarts on Bridge Setup Screen back to 0 Default Enet Port on Port Setup Screen back to Port 1 Enable Redundancy on Port Setup Screen back to NO Port 1 Poll Address on Port Setup Screen back to 00 00 00 00 00 00 Port 1 Poll Interval on Port Setup Screen back to 5 seconds Port 1 Max Retries on Port Setup Screen back to 6 Port 2 Poll A...

Page 34: ...idge if it will be communicating with a device that is on the other side of a third party router or gateway Type of STA Protocol Indicates the Spanning Tree Algorithm Protocol under which the NB30 is operating The NB30 can operate in An IEEE 802 1 Compliant Spanning Tree Algorithm environment IEEE A DECTM LAN Bridge 100 or Vitalink TransLAN environment DEC Without the Spanning Tree Algorithm enabl...

Page 35: ...Default Settings field is a toggle field that alternately displays YES and NO when you press Return 3 Highlight the EXECUTE option at the bottom of the Bridge Setup Screen 4 Press Return The bridge will be restored to its default settings If you want all Spanning Tree information to be restored to its default values the Restart Bridge option must be also executed Erasing the Permanent Database To ...

Page 36: ... s databases Erasing the Acquired Database To erase the Acquired Database 1 Using the arrow keys highlight the Erase Acquired Database field 2 Press the Return key until the YES selection appears The Erase Acquired Database field is a toggle field that alternately displays YES and NO when you press Return 3 Highlight the EXECUTE option at the bottom of the Bridge Setup Screen 4 Press Return The co...

Page 37: ... number from 0 to 255 3 Press Return 4 Highlight the EXECUTE option at the bottom of the Bridge Setup Screen 5 Press Return The indicated value will be the new IP Address Setting the Type of STA Protocol To set the Type of STA Protocol 1 Using the arrow keys highlight the Type of STA Protocol field 2 Press the Return key until the appropriate selection appears The Type of STA Protocol field is a t...

Page 38: ...he Reset Counters field is a toggle field that alternately displays YES and NO when you press Return 3 Highlight the EXECUTE option at the bottom of the Bridge Setup Screen 4 Press Return All counters will be set to 0 Disabling the Bridge To disable the bridge 1 Using the arrow keys highlight the Disable Bridge field 2 Press the Return key until the YES selection appears The Disable Bridge field i...

Page 39: ...press Return 3 Highlight the EXECUTE option at the bottom of the Bridge Setup Screen 4 Press Return The bridge will restart as if it is powered up After several seconds the Terminal Type Screen will appear Setting the Time To set the time 1 Using the arrow keys highlight the Set Time field 2 Enter the time in 24 hour hh mm ss format 3 Press Return 4 Highlight the EXECUTE option at the bottom of th...

Page 40: ...on Systems NB30 Change Password Feature 5 1 4 The Port Setup Option With the Port Setup Option you can view the status of the switches in the front and rear panel of the NB30 If two SPIMs are installed in the NB30 this option allows you to switch the SPIM that is communicating with the network or to set one of the SPIMs to act as a redundant data path If you have a DSX 1 Remote Port module install...

Page 41: ...your NB30 is equipped with a DSX 1 module refer to Figure 5 3 b The Port Setup Screen for an NB30 equipped with a DSX 1 module and two SPIMs will appear as shown in Figure 5 3 b This screen displays DSX 1 switch and port information on the left side of the screen and redundancy information on the right side of the screen 07 20 91 PORT SETUP Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name C...

Page 42: ...idge User s Manual for more information OFF means that the NB30 will force Data Mode true and ignore the Data Mode Control Signal from the DCE ON means that the NB30 will require the Data Mode Control Signal from the DCE 3 20 91 PORT SETUP Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 01 Days 01 Hours 33 Minute...

Page 43: ...panning Tree Algorithm is set by switching the Spanning Tree Algorithm Switch on the back panel of the NB30 See the NB30 Ethernet Bridge User s Manual for more information OFF means that the Spanning Tree Algorithm is disabled ON means the Spanning Tree Algorithm is enabled V 35 RS449 Config A 3 Unused This switch is currently not used in a V 35 RS449 equipped NB30 DSX 1 Config A 3 T 1 Framing Mod...

Page 44: ...t Switch to be operational The root switch must be also set to the same setting both NB30 s paired in the remote link Forward Broadcast Switch Indicates whether the bridge will forward Broadcast packets across the wide area transmission link This is set by switching the Forward Broadcast switch on the front panel of the NB30 See the NB30 Ethernet Bridge User s Manual for more information OFF means...

Page 45: ...ermining that communications has been lost 5 1 4 2 Setting the Default Enet Port Option If two SPIMs are installed in the NB30 Local Management allows you to set which Ethernet port is communicating with the network To set which port will be the default Ethernet port for communicating with the Ethernet Network 1 Using the up arrow key highlight the Default Enet Port Field 2 Press the Return key un...

Page 46: ...dancy configuration An NB30 with two SPIM Ts is connected to the network Ethernet Port 1 on the NB30 is connected to MMAC 2 and is acting as the primary data path Ethernet Port 2 is connected to MMAC 1 and will be acting as the redundant data path Figure 5 4 Sample Redundancy Configuration To set Ethernet Port 2 to act as a redundant data path 1 Using the up arrow key highlight the Enable Redundan...

Page 47: ...sage Numeric Entry Must be Less Than or Equal to 30 will appear 8 Enter the maximum retry interval in seconds into the Port 1 Max Retries field A retry count of 2 to 99 may be entered 9 Press Return If the retry count was entered as 1 or less the message Numeric Entry Must be Greater Than or Equal to 2 will appear at the top left of the screen 10 Enter the Ethernet address of the Repeater Module i...

Page 48: ... you can configure the setup and operation of the T1 link connection To do so 1 Highlight the DSX 1 SETUP option button at the bottom of the Port Setup Screen 2 Press Return The DSX 1 Port Setup screen Fig 5 5 will appear Figure 5 5 The DSX 1 Port Setup Screen 3 20 91 DSX 1 PORT SETUP Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL ...

Page 49: ...s of each channel use the arrow keys to highlight the EXECUTE command at the bottom of the window 4 Press Return The channels will be enabled or disabled as desired The Activate All Command This command enables all channels on the T1 link To do so 1 Use the Arrow keys to highlight the ACTIVATE ALL command 2 Press Return All channels on the T1 link will be enabled and will display as such in the DS...

Page 50: ...ght Remote Loop Up 2 Press Return to initiate the loopback test The bridge Status field will be Disabled while the loopback test is being performed Remote Loop Down Allows the user to send loopdown code to the remote bridge This restores the DSX 1 back to operational non testing condition To revert from a loopback test to operating condition 1 Use the Right Arrow key to highlight Remote Loop Down ...

Page 51: ...nk Rem Loopback Passed Indicates that the Remote Loopback test passed Rem Loopback Failed Indicates that the Remote Loopback test failed Test Pattern Allows the user to select the pattern to use for the loopback test The available test patterns are All 0s All 1s Alternate 1 0s Incrementing Data 5 2 THE SAVE NAMES OPTION You can change the bridge location network and the bridge or port user defined...

Page 52: ...or Location Names may be entered in mixed upper and lower case If you make a mistake when entering a name use the backspace key to delete individual characters or use the cursor key to type over an entry in the entire field 3 Press Return 4 After completing the appropriate entries highlight the SAVE NAMES option 5 Press Return The message Bridge Information Screen Parameters Saved will appear on t...

Page 53: ...5 3 1 The Bridge Counters Screen The Bridge Counters Screen displays counter information recorded since the bridge was last initialized or reset Counter information is broken down by port The following provides brief explanations for the fields Figure 5 7 Bridge Counters Screen 06 11 91 12 51 31 NETWORK ERRORS Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Versi...

Page 54: ...space to maintain the data Discard Transit Delay Exceeded Displays the number of frames that were intended for forwarding but were discarded when the maximum time period set for transmission was exceeded Discard On Error Displays the number of frames received that were greater than 1518 bytes not including preamble and CRC Not applicable for the Remote port To view a breakdown of the network error...

Page 55: ...ue to excessive collisions over 16 attempts to transmit the same packet for the Ethernet port Not applicable for the Remote port Out of Window Collisions Indicates the number of collisions out of the standard collision window 51 2 µsec due to a network problem Not applicable for the Remote port 06 11 91 12 51 31 NETWORK ERRORS Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOT...

Page 56: ...bridge See Figure 5 9 The Permanent Database This contains addresses that remain in the Source Address Table when the system is shut down With Local Management for the NB30 the network manager can add to or delete from this database The Acquired Database This consists of address entries that accumulate as part of the Filtering Database while the bridge is up and running The Acquired Database also ...

Page 57: ...ic packets 802 1 FILTERING DATABASE ACQUIRED DYNAMIC ENTRIES STATIC PERMANENT ENTRIES ENTRIES ACQUIRED DATABASE PERMANENT DATABASE 8191 FILTERS TOTAL 10 SPECIAL FILTERS SPECIAL FILTERING DATABASE SOURCE DESTINATION TYPE FIELD 8 BYTES IN DATA FIELD 10 FILTERS TOTAL BOTH 802 1 AND SPECIAL FILTERING DATABASES 10 SPECIAL FILTERS SOURCE DESTINATION TYPE FIELD 8 BYTES IN DATA FIELD ACQUIRED DYNAMIC ENTR...

Page 58: ...g Database Screen displays typical bridge description and identification data in its top portion Refer to the section on General Screen Information in Chapter 3 if you need explanation for these fields Figure 5 10 Filtering Database Screen 06 11 91 12 51 31 FILTERNING DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Versi...

Page 59: ...e Screen Fields Acquired Database Total Entries Indicates the total number of entries in the database Statics Contains the number of addresses added to the Acquired Database by the user or network manager Dynamics Indicates the number of entries that have accumulated in the Acquired Database through the bridge s learning process Max Entries Indicates the maximum number of addresses allowed in the ...

Page 60: ...value 10 to 1 000 000 seconds allowed 3 Press Return 4 Highlight the SAVE command at the bottom of the screen 5 Press Return The message New Ageing Time and Filtering Type Saved will appear on the screen 5 4 1 3 Editing the Type of Filtering Field To edit the Type of filtering field 1 Using the arrow keys highlight the Type of filtering field 2 Press the Return key until the appropriate selection ...

Page 61: ...at the bottom of screen 2 Press Return The Filtering Database Screen with the Create option Figure 5 11 will appear Figure 5 11 Filtering Database Create Entry Screen 06 11 91 12 51 31 FILTERNING DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 0 Days 0 Hours 3 Minutes Status ON_LINE Acquired Database Per...

Page 62: ...Return 6 t the Action on packet entering Enet Port field toggle the field to the desired option for the packets entering with this destination address Filter indicates that the packet will not be allowed to pass through the bridge Relay indicates that the packet will be allowed to pass through the bridge 7 After you have entered and saved all appropriate parameters at this screen use the arrow key...

Page 63: ...the Return key until the appropriate database is displayed in the Database field The database field is a toggle field that alternately displays Acquired and Permanent when you press Return Figure 5 12 Filtering Database Delete Entry Screen 06 11 91 12 51 31 FILTERNING DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Versi...

Page 64: ... bridge repeat steps 1 9 above to delete each additional entry NOTE Any entry deleted from the Permanent database will also be deleted from the Acquired database 5 4 1 6 The Display Entry Option The Display Entry option allows you to examine a particular address in the bridge s database With this option you can determine whether a packet with the specified destination address will be forwarded or ...

Page 65: ...ress was not found in the database the message Entry Not Found will appear If you have entered a valid address that exists in the selected database the appropriate information will appear at the bottom of the screen 06 11 91 12 51 31 FILTERNING DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 0 Days 0 Hou...

Page 66: ... keys to highlight the DISPLAY RANGE option at the bottom of the Filtering Database Screen Figure 5 10 2 2 Press Return The Filtering Database Display Range Screen Figure 5 14 will appear Figure 5 14 Filtering Database Display Range Screen 06 11 91 12 51 31 FILTERNING DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Versi...

Page 67: ...ses quickly The index count starts at 0 7 Press Return 8 Highlight the Stop Index field 9 Enter the appropriate index number in the Stop Index field for the last address that should appear in the Display Range 10 Press Return 11 Highlight the DISPLAY RANGE option at the bottom of the screen 12 Press Return The Filtering Database Display Entry Range Screen Figure 5 15 will appear displaying the lis...

Page 68: ...ork Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 0 Days 0 Hours 4 Minutes Status ON_LINE Display Entry Range Start Index 0 Stop Index 8191 Index Address Type Enet Port 0 01 80 C2 00 00 02 Static Filter 1 01 80 C2 00 00 03 Static Filter 2 01 80 C2 00 00 05 Static Filter 3 01 80 C2 00 00 06 Static Filter 4 01 80 C2 00 0...

Page 69: ...ith a specific Destination Address must be filled by 12 hexadecimal digits or Xs which represent any wildcard characters Source Addr Sets the Special Database to filter packets with a specific Source Address must be filled by 12 hexadecimal digits or Xs which represent any wildcard characters 06 11 91 12 51 31 SPECIAL DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOT...

Page 70: ...filter you can use these fields individually or in combination CAUTION Do not set and enable a Special Filtering Database filter to its default value of all Xs in all fields If enabled the NB30 will filter all network traffic passing through it To add a filter to the Special Database 1 Highlight the ADD FILTER option at the bottom of the Special Database Screen Figure 5 16 2 Press Return The Speci...

Page 71: ...r and press Return Be sure that any unused characters are filled with Xs which represent any number 12 If you desire highlight the Data Field 06 11 91 12 51 31 SPECIAL DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 0 Days 0 Hours 4 Minutes Status ON_LINE Enable Enet Port Dest Address Source Addr Type Da...

Page 72: ...tination and Source Addresses and Type and Data fields entering the bridge through the Ethernet Ports will be filtered or relayed 5 4 2 3 Deleting Special Database Filters To delete a Special Database filter 1 Using the arrow keys highlight the number of the filter you wish to delete 2 Press Return The Special Database Delete Filter screen Figure 5 18 will appear with the filter you have chosen to...

Page 73: ...pe or Data fields by typing in the desired values and pressing Return 5 Highlight the SAVE FILTER command at the bottom of the screen 06 11 91 12 51 31 SPECIAL DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 0 Days 0 Hours 10 Minutes Status ON_LINE Enable Enet Port Dest Address Source Addr Type Data Fiel...

Page 74: ...OTE Bridge Protocol Parameters can be altered while the Spanning Tree Algorithm is disabled When the Spanning Tree Algorithm is enabled and the bridge is restarted all new values will be used by the bridge Any values not changed will be set at their default values 5 5 1 Bridge Protocol Parameters Screen At the Bridge Protocol Parameters Screen Figure 5 19 you can examine protocol parameters for th...

Page 75: ... brief explanations for all protocol fields that appear on this screen 5 5 1 1 Bridge Protocol Parameters Screen Fields Bridge ID Displays the unique bridge identifier of the bridge The identifier consists of the Bridge Priority and Ethernet Address of the bridge 06 11 91 12 51 31 SPECIAL DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Lo...

Page 76: ...e a BPDU can exist before it is discarded The default value for this field is 20 seconds Bridge Forward Delay If the bridge is the root bridge or is attempting to become the root this field displays the time period the bridge will spend in the listening state i e listening to BPDU activity on the network while moving from the blocking to the learning state The time displayed also indicates the tim...

Page 77: ... data in this field indicates the length of time the bridge waits between sending configuration BPDUs The default value for this field is 2 seconds Bridge Priority Displays the part of the bridge address that contains the identifier used in Spanning Tree for priority comparisons The default value for this field is 8000 when the Root Switch is off 5 5 1 2 Editing the Bridge Protocol Parameters Scre...

Page 78: ...USING BRIDGE MANAGEMENT OPTIONS 5 48 Table 5 1 Optimal Bridge Max Age Parameters ...

Page 79: ...e root bridge or is attempting to become the root and you want to change the time period the bridge will spend in the listening state i e listening to BPDU activity on the network while moving from the blocking to the learning state 1 Use the arrow keys to highlight the Bridge Forward Delay field 2 Enter the new time at this field in seconds A time of 4 to 30 seconds is allowed 3 Press Return NOTE...

Page 80: ...0 FFFF 2 Enter the new identifier in hex at this field 3 Press Return Saving Your Changes After you have entered all necessary changes at the appropriate fields 1 Highlight the SAVE option at the bottom of the screen 2 Press Return to record the changes 5 5 2 The Port Parameters Option The Port Parameters option allows you to display bridge port information and protocol parameters similar to the i...

Page 81: ... Bridge Port Parameters Screen On the screen two data columns are provided to the right of each of the fields to display the respective data for the Ethernet port of both the Local and Remote NB30 06 11 91 12 51 31 SPECIAL DATABASE Network Address 00 00 1D 00 10 CA Type NB30 Bridge Name CABLETRON REMOTE BRIDGE SW Version 1 10 00 Location LOCAL HW Version 1 Uptime 01 Days 01 Hours 33 Minutes Status...

Page 82: ...h Cost Displays the contributory cost of the applicable port to the overall cost of the path when the indicated port is the port on the bridge closest to the root the root port A change to this parameter can be made to effect a needed change in path cost and bridge topology Designated Root Displays the unique bridge identifier of the bridge that is assumed to be the root bridge on the network Desi...

Page 83: ...keys to highlight the Port Priority field 2 Enter the appropriate identifier at this field Only valid hex characters 0 FF are allowed 3 Press Return Changing the Path Cost If a change in the designated port or bridge would benefit the LAN for the bridge change the contribution of the path through the root port by 1 Using the arrow keys to highlight the Path Cost field 2 Enter the new numeric value...

Page 84: ...USING BRIDGE MANAGEMENT OPTIONS 5 54 ...

Page 85: ...Ethernet Address Address must be entered in xx xx xx xx xx xx format Bridge Information Screen User hit SAVE on the Bridge Parameters Saved Information screen Bridge Setup Screen User hit SAVE on the Bridge Setup Parameters Saved screen DSX 1 Setup Screen User hit SAVE on the DSX 1 Port Setup Parameters Saved screen New Ageing Time and User hit SAVE on the Filtering Database Filtering Type Saved m...

Page 86: ... FILTER on the Special Database Delete Filter screen and the entry was deleted Could Not Delete Entry User hit DELETE ENTRY on the Filtering Database screen or DELETE FILTER on the Special Database Delete Filter screen and the entry address is reserved or does not exist Entry Not Found User hit DISPLAY ENTRY on the Filtering Database screen and the entry address was not found in the database Inval...

Page 87: ...rrect time of 0 was entered into Greater Than 0 the Refresh Time field It must be in the range of 1 9 999 seconds Database is Full User hit ADD FILTER on the Special Database Add Filter screen and the Special Database is full Entry Already Exists User hit SAVE FILTER on the Special Database Save Filter screen or the Special Database Delete Filter screen and the entry data already exists ...

Page 88: ...Appendix A A 4 ...

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