Cabletron Systems 9A426-01 Documento tecnico

9031919-02

SmartSwitch 9000

9A426-01/9A426-02

Local Management Appendix

Appendix

9A426-01/9A426-02

Module Speciﬁc Information

Introduction

This appendix contains local management information that is speciﬁc to the

following ATM Modules:

• 9A426-01 (1 active front panel port; 1 stand-by front panel port)

• 9A426-02 (2 active front panel ports)

Local Management Screens

The screens shown in this appendix are for the 9A426-02 ATM Module. The

screens for the 9A426-01 ATM Module differ in that there is no Port # ﬁeld, since

the 9A426-01 ATM Module has only one active front panel port.

9A426-01/9A426-02 Module Speciﬁc Information

Module Interfaces

The 9A426-01 ATM Module has seven interfaces. Table 1 lists the identifying

number, name, and description of each interface.

The 9A426-02 ATM Module has eight interfaces. Table 2 lists the identifying

number, name, and description of each interface.

Use the numbers in Table 1 or Table 2 to conﬁgure your module’s default interface

(see the General Conﬁguration Screen).

Table 1. 9A426-01 ATM Module Interfaces

Interface

Number

Interface

Name

Interface

Description

1 SMB-1 1 Mbps System Management Bus

2 SMB-10 10 Mbps System Management Bus

3 HOST 1 i960 Interface to SmartSwitch Core

4 HOST 2 i960 Interface to SmartSwitch Core

5 INB Internal Network Bus

6 ATM-1 ATM Front Panel Port 1 (APIM)

7 FNB Flexible Network Bus

Table 2. 9A426-02 ATM Module Interfaces

Interface

Number

Interface

Name

Interface

Description

1 SMB-1 1 Mbps System Management Bus

2 SMB-10 10 Mbps System Management Bus

3 HOST 1 i960 Interface to SmartSwitch Core

4 HOST 2 i960 Interface to SmartSwitch Core

5 INB Internal Network Bus

6 ATM-1 ATM Front Panel Port 1 (APIM)

7 ATM-2 ATM Front Panel Port 2 (APIM)

8 FNB Flexible Network Bus

9A426-01/9A426-02 Module Speciﬁc Information

Modifying Fields and User Privileges

To modify ﬁelds on these modules, you must have read-write or super-user

privileges. If you have read-only privileges, you can view information; however,

you cannot modify any ﬁelds.

Virtual Channels andVirtual 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). This addressing takes

place in the header ﬁeld of the ATM cell.

VCs and VPs are bi-directional (i.e., they transfer information in both directions

on a single channel or path) and are “set up” between devices on the ATM

network prior to transmission. Similar to WAN transmission, ATM technology

provides the ability of sending several VCs together over a VP, and several VPs

over an ATM link segment.

Permanent and SwitchedVirtual Channels

ATM networks use two different types of Virtual Channels:

• Permanent Virtual Channels (PVCs)

• Switched Virtual Channels (SVCs).

The difference between PVCs and SVCs exists in the channel setup.

PVCs are pre-conﬁgured by an administration function, and are usually

established for long-term use. After setting up this channel, nothing else is

required by the network to transfer information between the two established

points. This type of virtual channelling is established through a local or remote

management interface.

SVCs use a signaling and network switching procedure to set up dynamically. In

other words, SVCs are established “on the ﬂy,” as needed for a particular service,

used to transmit on the short term, and then terminated.

9A426-01/9A426-02 Module Speciﬁc Information

FNB Resource Conﬁguration Screen

The 9A426-01/9A426-02 FNB Resource Conﬁguration Screen (Figure 1), lists all

possible connections a module can support on the FNB, displays the current

connection, and allows you to change the connection.

Figure 1. 9A426-01/9A426-02 FNB Resource Conﬁguration Screen

SmartSwitch 9000 Local Management

FNB Resource Configuration

Module Name: 9A426-02 Firmware Revision: 01.00.01

Slot Number: 5 BOOTPROM Revision: 01.01.01

Current FDDI Con: (#2) FNB1<->ATM

Config ID FDDI Connections

1 NORING<->ATM

2 FNB1<->ATM

3 FNB2<->ATM

SAVE EXIT RETURN

9A426-01/9A426-02 Module Speciﬁc Information

FNB Resource Conﬁguration Screen Fields

The following information brieﬂy explains each FNB Resource Conﬁguration

Screen ﬁeld.

Current FDDI Con:

Displays the current connections of the selected module to the

SmartSwitch 9000 FNB.

Conﬁg ID

Displays an identiﬁcation number that is automatically assigned to each

conﬁguration.

FDDI Connections

Displays all possible connections of the selected module to the

SmartSwitch 9000 FNB.

Changing the Current FNB Connection

To change the current FNB connection:

1. Use the arrow keys to highlight the desired FDDI connection.

2. Press the

Return

key.

3. The connection you selected appears in the

Current FDDI Con:

ﬁeld.

4. Use the arrow keys to highlight

SAVE,

then press the

Return

key.

The message “SAVED OK” appears. This message indicates that the FNB

connection you selected has been implemented. If you exit without saving, the

message “NOT SAVED -- PRESS SAVE TO KEEP CHANGES” appears, and

the FNB connection you selected will not be implemented.

5. Use the arrow keys to highlight

RETURN

, then press the

Return

key.

9A426-01/9A426-02 Module Speciﬁc Information

ConnectionTable Screen

The 9A426-01/9A426-02 Connection Table Screen (Figure 2), displays the

currently conﬁgured connections on the module.

Figure 2. 9A426-01/9A426-02 ConnectionTable Screen

SmartSwitch 9000 Local Management

9A426-02 Connection Table

Module Name: 9A426-02 Firmware Revision: 01.00.01

Slot Number: 5 BOOTPROM Revision: 01.01.01

ATM Port Current Connections: 2ELAN:

VPI VCI Encapsulation Type AAL Type

0 0005 Other 5

0 0016 Other 5

ELAN: ADD/DELETE

PORT #: 1EXIT ENTRY RETURN

9A426-01/9A426-02 Module Speciﬁc Information

ConnectionTable Screen Fields

The following information brieﬂy explains each Connection Table Screen ﬁeld.

ATM Port Current Connections

Number of virtual circuits that are currently open for this port.

ELAN:

Name of the ELAN to which this client is joined.

VPI

Displays the Virtual Path Identiﬁer number of the listed PVC or SVC.

VCI

Displays the Virtual Channel Identiﬁer number of the listed PVC or SVC.

EncapsulationType

Displays the method used to encapsulate data at the ATM Adaptation Layer 5

(AAL5) for each connection. The 9A426-01 and 9A426-02 ATM Modules support

the following methods of encapsulation:

• VC Mux 802.3 LANE (

default

)

VC Based Multiplexed 802.3 LAN Emulation. This is the encapsulation type

used when the connection is set up via SVCs. These happen automatically in

the network with no user intervention.

• VC Mux Bridged 802.3

VC Based Multiplexing for bridged protocols. You can choose this

encapsulation type for PVCs to do bridging.

For more detailed information about this ﬁeld, see the description for the ELAN

Name: ﬁeld on page 13.

NOTE

9A426-01/9A426-02 Module Speciﬁc Information

• LLC Encapsulation

Logical Link Control for Bridged Protocols. You can choose this encapsulation

type for PVCs. You cannot use this encapsulation type for SVCs.

LLC Encapsulation inserts an LLC SNAP header for each legacy LAN

network type that is being encapsulated onto ATM. LLC Encapsulation is

desirable when it is not feasible for a larger number of VCs to be supported,

due to ATM device capacity limitations or other outside factors.

• Other

This encapsulation type is for reserved connections that are defaults built into

most (if not all) ATM LANE 1.0 compliant devices. In other words, they are

neither conﬁgured by hand nor set up dynamically.

AALType

Displays the type of ATM adaptation layer (AAL) used on this VCC. The AAL

divides the user information into segments suitable for packaging into series of

ATM cells. The AAL types are:

• AAL3/4

• AAL5 (

default

)

ELAN: (Modiﬁable)

Selects the ELAN for which connections are to be displayed.

To select another ELAN, use the arrow keys to highlight the

ELAN

: ﬁeld (bottom

left corner of the screen), then press the

Space Bar

PORT #: (Toggle)

Selects a speciﬁc ATM port.

To select another port (if applicable), use the arrow keys to highlight the

PORT #

ﬁeld (bottom left corner of the screen), then press the

Space Bar

Displaying the Add/Delete Entry Screen

To display the Add/Delete Entry Screen, use the arrow keys to highlight

ADD/DELETE ENTRY,

then press the

Return

key.

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