Cabletron Systems MMAC-Plus 9H421-12 Manuale

9031929-03

DRAFT

SmartSwitch 9000

9H421-12, 9H422-12 and 9H429-12

Local Management Appendix

Appendix

9H421-12, 9H422-12 and 9H429-12

Module Speciﬁc Information

Introduction

This appendix contains local management information that is speciﬁc to the

9H421-12, 9H422-12 and 9H429-12 Fast Ethernet Switch Modules.

All three modules are 12-port switching modules. The 9H422-12 is equipped with

eleven 10Base-T/100Base-TX ports (RJ45 connectors) and one FEPIM port, which

accepts either a FE-100TX or a FE-100FX. The 9H421-12 is equipped with twelve

100Base-FX ports with multimode ﬁber (SC connectors).

Each module can operate in either full duplex or half duplex mode.

Auto-negotiation for 100Base-T modules provides support for 10 Mbps and 100

Mbps speeds at both half and full duplex. 100Base-FX supports 100 Mbps speed

at both half and full duplex.

The auto-negotiation feature (available only with the 9H422-12 module) allows

the module to automatically use the fastest rate supported by the device at the

other end (either 10 Mbps or 100 Mbps at either half or full duplex). To negotiate

duplex, both the 9H422-12 and the attached device must be conﬁgured for

auto-negotiation. If only the 9H422-12 is conﬁgured for auto-negotiation, the

module will set the connection to half duplex at either the 10 Mbps or 100 Mbps

rate. This technology is similar to how modems negotiate transmission speed,

ﬁnding the highest transmission rate possible. Similarly, auto-negotiation

determines the highest common speed between two devices and communicates at

that speed. If no common speed is detected, the device will be partitioned.

Modifying Fields and User Privileges

To modify ﬁelds on this module, 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. For more information about user privileges and

community names, see the

SmartSwitch 9000 Module Local Management User’s

Guide.

Module Interface Codes

The 9H421-12, 9H422-12 and 9H429-12 Modules have seventeen interfaces.

Table 1 lists the identifying number, name, and description of each interface.

Use the numbers listed in Table 1 to conﬁgure the module’s default interface (see

the General Conﬁguration Screen).

Table 1. 9H421-12, 9H422-12 and 9H429-12 Module Interface Codes

Interface

Number

Interface

Name

Interface

Description

1 SMB1 1 Mbps System Management Bus

2 SMB10 10 Mbps System Management Bus

3 HOST

4 LOCAL

5 INB Internal Network Bus

6 FENET1 Fast Ethernet Front Panel Port 1

(FEPIM on the 9H422-12)

7 FENET2 Fast Ethernet Front Panel Port 2

8 FENET3 Fast Ethernet Front Panel Port 3

9 FENET4 Fast Ethernet Front Panel Port 4

10 FENET5 Fast Ethernet Front Panel Port 5

11 FENET6 Fast Ethernet Front Panel Port 6

12 FENET7 Fast Ethernet Front Panel Port 7

13 FENET8 Fast Ethernet Front Panel Port 8

14 FENET9 Fast Ethernet Front Panel Port 9

15 FENET10 Fast Ethernet Front Panel Port 10

16 FENET11 Fast Ethernet Front Panel Port 11

17 FENET12 Fast Ethernet Front Panel Port 12

Module Speciﬁc Port Conﬁguration Screen

The 9H421-12, 9H422-12 and the 9H429-12 Port Conﬁguration Screen (Figure 1),

displays port number, operation mode, link status, and port status of each

module’s twelve ports.

Figure 1. 9H422-12 Port Conﬁguration Screen

The 9H421-12, 9H429-12 and the FE-100FX PIM do not support

auto-negotiation; if either is installed, the Advertised Ability ﬁeld becomes

unconﬁgurable, and the Desired Operation Mode ﬁeld does not toggle to

auto-negotiation.

NOTE

SmartSwitch 9000 Local Management

Port Configuration

Module Name: Firmware Revision: 01.02.X3

Slot Number: 1 BOOTPROM Revision: 01.00.01

PORT #: 1

Port Type FE-100TxUTP

Link Status Link

Current Operation Mode 100Base-TX

Desired Operation Mode [Auto-Negotiation]

Advertised Ability [10Base-T] [Enabled]

Module Speciﬁc Port Conﬁguration Fields

The following explains each Module Speciﬁc Port Conﬁguration Screen ﬁeld.

Slot #

(Modiﬁable)

Indicates the slot that the board occupies in the chassis.

Port #

(Read-only)

Indicates the current port for which statistics are displayed.

PortType

(Read-only)

Displays one of the following values:

• RJ45

• MMF SC

• SMF SC

• FE-XX

Link Status

(Read-only)

Displays one of the following values:

• Link

• No Link

• N/A

Current Operational Mode

(Read-only)

Displays one of the following values:

• 10BASE-T- Operating standard 10 Mbps Ethernet over two pairs of UTP cable.

• 10BASE-T Full Duplex - Operating Full Duplex 10 Mbps Ethernet over two

pairs of UTP cable. Full Duplex indicates the module is connected to a single

device, and is not listening for other transmissions or collisions when sending

data. This allows both devices on the link to send and receive data

simultaneously over the link. Theoretically, this provides the devices with

twice the bandwidth of normal, or half duplex, Ethernet.

• 100BASE-TX- Operating Fast Ethernet over two pairs of Category 5 UTP or

Type 1 STP cable.

• 100BASE-TX Full Duplex - Operating Full Duplex 100 Mbps Fast Ethernet over

two pairs of Category 5 UTP or Type 1 STP cable.

• 100BASE-T4 - Operating 100 Mbps Fast Ethernet over four pairs of Category 3,

4, or 5 UTP.

• 100BASE-FX - Operating 100 Mbps Fast Ethernet over two strands of

multimode ﬁber cable.

• 100BASE-FX Full Duplex - Operating Full Duplex 100 Mbps Fast Ethernet over

two strands of multimode ﬁber cable.

Desired Operational Mode

(Read-Write)

Displays one of the following values:

• Auto-Negotiation

• Manual 10BASE-T

• Manual 10BASE-T Full Duplex

• Manual 100BASE-TX

• Manual 100BASE-TX Full Duplex

• Manual 100BASE-T4

• Manual 100BASE-FX

• Manual 100BASE-FX Full Duplex

Only the modes that the device is capable of are displayed. The module defaults

to auto-negotiation. If the device connected to the module also supports

auto-negotiation, the devices self-conﬁgure to the fastest possible speed and

duplex. For example, if the other device does not support auto-negotiation, the

devices do a parallel detection and conﬁgure to either 10 Mbps or 100 Mbps, but

only at half duplex. If the device connected to the module is standard Ethernet

with no auto-negotiation support, and is conﬁgured for full duplex, the Desired

Operational Mode ﬁeld must be set to

10Base-T Full Duplex

Advertised Ability

(Read-Write)

Allows the user to specify the advertised ability for the chosen port. The ability of

each port is presented ﬁrst, followed by the ability to enable/disable on each port.

Advertised Ability is applicable only when the Desired Operational Mode ﬁeld is

set to

Auto-Negotiation.

Otherwise this ﬁeld displays N/A and is read-only. When

in auto-negotiation mode, the module auto-negotiates to the highest speed being

advertised by both devices.

If a FEPIM is not installed on the 9H422-12 Module, the Desired Operational

Mode displays N/A within brackets for that port.

NOTE

Module Speciﬁc Port Statistics Screen

The 9H421-12, 9H422-12 and the 9H429-12 Modules provide Fast Ethernet

statistical information for each port. Counters (including bytes, frames, total

errors, collisions, CRC/Alignment errors, undersize packets, oversize packets,

fragments, broadcasts and multicasts) display information helpful for monitoring

the status of the modules. The Fast Ethernet Port Statistics Screen (Figure 2), also

displays link status, the port type, admin status, the application, operational

mode and the status of auto-negotiation.

Figure 2. 9H422-12 Port Statistics Screen

SmartSwitch 9000 Local Management

Port Statistics

Module Name: Firmware Revision: 01.02.X3

Slot Number: 1 BOOTPROM Revision: 01.00.01

PORT #: 1

OCTETS: 3390336996 LINK STATUS: Link

PACKETS: 49857191

TOTAL ERRORS: 93 PORT TYPE: FE-100TxUTP

COLLISIONS: 87

CRC/ALIGNMENT ERRORS: 6 PORT STATUS: ENABLED

UNDERSIZE PACKETS: 0

OVERSIZE PACKETS: 0 APPLICATION: BRIDGING

FRAGMENTS: 87

JABBERS: 0 OPERATION MODE: 100Base-TX

BROADCASTS: 6

MULTICASTS: 19090317 AUTO NEGOTIATION: YES

Port Statistics Screen Fields

The following explains each Port Statistics Screen ﬁeld.

Port #

(Read-only)

Indicates the current port for which statistics are displayed.

Octets

(Read-only)

Displays the number of octets transmitted and received.

Packets

(Read-only)

Displays the number of packets transmitted and received.

Total Errors

(Read-only)

Displays the total number of errors on this port.

Collisions

(Read-only)

Displays the total number of collisions detected on this port.

CRC/Alignment Errors

(Read-only)

Displays the number of bad FCS (Frame Check Sequence) packets with integral

number of octets that have been received from the network. Alignment errors are

due to a bad FCS with a non-integral number of octets.

Undersize Packets

(Read-only)

Displays the number of packets received whose size was less than the minimum

Ethernet frame size of 64 bytes, not including preamble.

Oversize Packets

(Read-only)

Displays the number of packets received whose size exceeded 1518 data bytes,

not including preamble.

Fragments

(Read-only)

Displays the total number of packets received that were not an integral number of

octets in length or that had a bad Frame Check Sequence (FCS), and were less

than 64 octets in length (excluding framing bits but including FCS octets).

Jabbers

(Read-only)

Displays the number of packets received whose size exceeded 1518 data bytes,

and had a bad FCS with an integral number of octets, or a bad FCS with a non-

integral number of octets.

Broadcasts

(Read-only)

Displays the number of broadcasts transmitted and received.

Multicasts

(Read-only)

Displays the number of multicasts transmitted and received.

Link Status

(Read-only)

Displays one of the following values:

• Link

• No Link

• N/A

PortType

(Read-only)

Displays one of the following values:

• RJ45

• MMF SC

• SMF SC

• FE-XX

Port Status

(Read-only)

Indicates the status of the selected port. Possible values are ENABLED and

DISABLED.

Application

(Read-only)

Displays BRIDGING, indicating that the port is operating as a bridge with a high-

speed backbone connection. Switching (SFS) may also be displayed indicating

that the port is operating as a switch.

Operation Mode

(Read-only)

Displays one of the following values:

• Auto-Negotiation

• 10BASE-T

• 10BASE-T Full Duplex

• 100BASE-TX

• 100BASE-TX Full Duplex

• 100BASE-T4

• 100BASE-FX

• 100BASE-FX Full Duplex

Auto Negotiation

(Read-only)

Indicates if the port is in auto-negotiation mode.

Auto-negotiation is not supported on the 9H421-12, 9H429-12 or the FE-100FX

PIM; the ﬁeld displays N/A.

NOTE

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