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Chapter 3: Local Management

Page 3-8

BRIM-A6 User’s Guide

3.3.1 BRIM-A6 Setup Screen Fields

The BRIM-A6 Setup screen displays settings for each PVC and SVC that 
is configured to the BRIM. The following list explains each of the 
BRIM-A6 Setup screen fields:

ATM Port Total Current Connections: 

X

This field displays how many connections (PVCs and SVCs) are 
configured to the BRIM-A6.

VPI

This field displays the Virtual Path Identifier (VPI) of each connection. 
You assign VPIs in the BRIM-A6 Add/Delete Entry screen.

VCI

This field displays the Virtual Channel Identifier (VCI) of each 
connection. You assign VCIs in the BRIM-A6 Add/Delete Entry screen.

Encapsulation Type

This field displays the method used to encapsulate data at the ATM 
Adaptation Layer 5 (AA-L5) for each connection. The BRIM-A6 
supports the following methods of encapsulation:

VC Mux 802.3 LANE: VC Based Multiplexed 802.3 LAN Emulation 
This method is specified by the ATM Forum LAN Emulation 
specification. This is the default encapsulation method. 

VC Mux Bridged 802.3: VC Based Multiplexing for bridged 
protocols as defined by the IETF RFC 1483.

LLC Encapsulation: Logical Link Control for Bridged Protocols as 
defined by the IETF RFC 1483.

AAL Type

This field displays the ATM Adaptation Layer (AAL) type of each 
connection. The AAL divides the user information into segments suitable 
for packaging into series of ATM cells. The ATM Forum’s LAN 
Emulation specification dictates that AAL-5 be used for all LAN 
emulation traffic. The BRIM-A6 supports AAL-5 and AAL-3/4.

Oper. Status

This field displays the operational status of each connection. Possible 
conditions are Enabled or Disabled.

book  Page 8  Thursday, April 18, 1996  2:18 PM

Summary of Contents for BRIM-A6

Page 1: ...BRIM A6 USER S GUIDE...

Page 2: ...NG 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 1996 by Cablet...

Page 3: ...ING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment DOC NOTICE This digit...

Page 4: ...ment shall be interpreted and governed under the laws and in the state and federal courts of New Hampshire You accept the personal jurisdiction and venue of the New Hampshire courts EXCLUSION OF WARRA...

Page 5: ...c in all respects is proprietary data belonging to Cabletron and or its suppliers For Department of Defense units the product is licensed with Restricted Rights as defined in the DoD Supplement to the...

Page 6: ...3 EEC EN55022 EN 50082 1 EN 60950 Equipment Type Environment Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare that the equipment packaged...

Page 7: ...3 3 2 1 ATM Connection Tables Screen Fields 3 4 3 2 2 ATM Connection Tables Screen Commands 3 5 3 2 3 Using ATM Connection Tables Screen Commands 3 5 3 2 4 Adding PVCs to the Connection Tables Screen...

Page 8: ...cifications A 1 A 3 APIM 22 Specifications A 2 A 4 APIM 29 Specifications A 2 A 5 APIM 67 Specifications A 3 APPENDIX B ATM OVERVIEW B 1 ATM Basics B 1 B 2 The ATM Cell B 2 B 3 The ATM Network B 4 B 3...

Page 9: ...d a basic overview of ATM refer to Appendix B ATM Overview 1 1 USING THIS MANUAL Read through this manual completely to familiarize yourself with its content and to gain an understanding of the featur...

Page 10: ...CUMENT CONVENTIONS The following conventions are used throughout this document NOTE Note symbol Calls the reader s attention to any item of information that may be of special importance TIP Tip symbol...

Page 11: ...Because of this support the BRIM A6 is not only standards based but takes advantage of FORE s ATM signaling enhancements while providing guaranteed interoperability with existing FORE ATM networks 1...

Page 12: ...950 and EN60950 EMI This unit meets the EMI requirements of FCC Part 15 Class A EN55022 Class A and VCCI Class I EMC This unit meets the EMC requirements of EN 50082 1 including IEC 801 2 ESD IEC 801...

Page 13: ...u have any questions comments or suggestions concerning this manual contact Cabletron Systems Technical Support By phone 603 332 9400 Monday Friday 8 A M 8 P M Eastern Time By CompuServe GO CTRON from...

Page 14: ...RIM 2 Carefully remove the module from the shipping box Leave the module in its non conductive bag until you are ready to install 3 Attach the disposable grounding strap to your wrist refer to the ins...

Page 15: ...the three screws from the BRIM standoffs See Figure 2 1 4 Insert the APIM connector into the BRIM connector See Figure 2 1 Figure 2 1 Installing an APIM 5 Press down firmly on the APIM until the APIM...

Page 16: ...o install a BRIM A6 in a MIM that supports BRIM technology 1 Power down the MMAC hub and remove all power cords 2 Disconnect all cables from the MIM Note the ports to which these cables attach 3 Attac...

Page 17: ...Figure 2 2 Removing the BRIM Coverplate Figure 2 3 Installing the BRIM BRIM COVERPLATE STANDOFF STANDOFF SCREW FACEPLATE MOUNTING SCREW 142902 APIM LNK STS PWR XMT RCV STS BRIM A6 STANDOFF SCREW STAN...

Page 18: ...ent 2 3 2 Installing a BRIM in a Hub To install a BRIM A6 into a standalone hub that supports BRIM technology 1 Power down the hub and remove the power cord 2 Disconnect all cables from the hub Note t...

Page 19: ...n firmly on the back of the BRIM A6 until the pins slide all the way into the connector holes 10 Reinstall the faceplate mounting screws and the standoff screws 11 Reattach the chassis cover to the hu...

Page 20: ...e installed in the host MIM or standalone hub The device must be up and running A management terminal must be configured and properly connected to the host MIM or standalone hub in which the BRIM A6 r...

Page 21: ...ion keys that perform the same LIM or LM function For example Press ENTER means that you can press either ENTER or RETURN unless this manual specifically instructs you otherwise SPACE bar and BACKSPAC...

Page 22: ...facilities SVCs can not be deleted from the ATM Connection Tables screen To access the ATM Connection Tables screen perform the following steps 1 Use the arrow keys to select BRIM 1 Extended Features...

Page 23: ...lete VPIs to the Connection Table You can assign numbers 0 3 for VPIs VCI This field lets you add or delete VCIs to the Connection Table You can assign numbers 0 1023 for VCIs Mode This field lets you...

Page 24: ...required by applications equipment and ATM facilities Next Previous This command lets you scroll to the next screen or back to the previous screen If the ATM Connection Tables screen has over 6 chann...

Page 25: ...press ENTER 7 Use the arrow keys to highlight the SAVE command at the bottom of the screen 8 Press ENTER The ADDING CHANNELS message appears indicating that LIM has saved all changes to memory 3 2 5...

Page 26: ...etup screen This is a view only screen which displays the settings for each PVC and SVC The BRIM A6 Add Delete Entry screen This screen allows you to add delete and configure PVCs To access BRIM A6 LM...

Page 27: ...t the ATM Adaptation Layer 5 AA L5 for each connection The BRIM A6 supports the following methods of encapsulation VC Mux 802 3 LANE VC Based Multiplexed 802 3 LAN Emulation This method is specified b...

Page 28: ...mand lets you scroll to the previous screen if the BRIM A6 Setup screen has over five connections it automatically continues onto a new screen Next This command lets you scroll to the next screen if t...

Page 29: ...lete Entry Screen To access the BRIM A6 Add Delete Entry screen from the BRIM A6 Setup screen perform the following steps 1 Use the arrow keys to highlight the Add Delete Entry selection at the bottom...

Page 30: ...o enter the VCI of the PVC you want to add delete or modify This field allows values of 0 1023 AAL Type Use this field to select the ATM Adaptation Layer for the PVC you want to add delete or modify P...

Page 31: ...creen 3 3 7 Adding a PVC To add a PVC perform the following steps 1 Use the arrow keys to highlight the VPI field and enter a VPI value from 0 3 2 Use the arrow keys to highlight the VCI field and ent...

Page 32: ...t to change 3 Use the arrow keys to highlight the AAL Type field and press the SPACE bar until the desired AAL Type appears 4 Use the arrow keys to highlight the Encapsulation Type field and press the...

Page 33: ...3 Use the arrow keys to highlight the AAL Type field and press the SPACE bar until the AAL Type of the PVC you want to delete appears 4 Use the arrow keys to highlight the Encapsulation Type field an...

Page 34: ...the BRIM A6 LEDs as well as the APIM LEDs Figure 4 1 The BRIM A6 4 1 BRIM A6 LEDs Table 4 1 describes each of the BRIM A6 LEDs Table 4 1 BRIM LEDs LED Definition STS Status Green Board OK Red Board E...

Page 35: ...APIM LEDs Table 4 2 APIM LEDs LED Definition LNK Link Green Have link Off No link STS Status Green APIM OK Red Fault with media In most cases the APIM automatically corrects this condition without int...

Page 36: ...Modules A 1 APIM 11 SPECIFICATIONS Physical Interface TAXI Media Type Multimode Fiber Data Rate 100 Mbps Connector Type SC Typical Link Distance 2 Kilometers A 2 APIM 21 SPECIFICATIONS Physical Inter...

Page 37: ...e has a different signal pin assignment that the ATM Network Equipment as specified by the ATM Forum User Network Interface UNI specification Figure A 1 shows the pin assignments for the APIM 22 Figur...

Page 38: ...channel Transmit and Receive must be grounded at one end Cabletron Systems ships the APIM 67 with the following default jumper settings Receive channel jumper grounded Transmit channel jumper not gro...

Page 39: ...transmitting and switching broadband information This method highlights the use of relatively small fixed size cells 53 bytes of information as opposed to large variable sized packets found in other...

Page 40: ...and waiting to be assigned traffic Idle cells are used to separate cells provide receiver synchronization byte alignment and reserve bandwidth for another channel i e occupy bandwidth between transmi...

Page 41: ...ation is user information network information or management information Header Check Sequence HCS detects bit errors corrects single bit errors This method of fixed cell length has many advantages ove...

Page 42: ...M physical link segment B 3 1 VIRTUAL CHANNELS AND VIRTUAL PATHS Rather than addressing cells to a specific destination as in a LAN ATM addresses cells to Virtual Channels VCs and or Virtual Paths VPs...

Page 43: ...n the short term and then terminated Each time a specific channel is established a routing protocol comes into play providing LAN style operation and management B 4 ATM PROTOCOL Existing PTM transmiss...

Page 44: ...y end up with is the same thing you started out with the original message See the arrow flow in Figure B 4 Both the ATM model and the OSI model are comprised of seven layers Fortunately only the first...

Page 45: ...d so on that are considered valid for the network The major difference between each model in the Physical Layer is in the type of media considered suitable for transmission While PTM transmission prot...

Page 46: ...ers take care of all the information routing normally performed by the Networking Layer the ATM Adaptation Layer AAL acts as the first link between the ATM cell and the higher layer services In this r...

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