background image

Mini Console

3-18

Loop Isolation

Loop Isolation is an important feature of the FSW-0802/1201TX. This
condition could exist if two ports are inadvertently connected to each other
causing a loop.

The switching device can not sustain a loop because it produces Broadcast
Storm thereby jamming the system with looping packets. FSW-0802/1201TX
supports isolating the looped ports. If the function is enabled, the device will
monitor all ports to see if there are any loops.

Once a loop is detected (which takes about one second), it will disable that
port. The port number frame will blink indicating it has been temporarily
isolated. Every 8 minutes, the port will be released to see if it is still looping.

The function of LOOP ISOLATE is disabled at the time it shipped from
manufacturer. You have to enable the function through Mini-Console. The
command sequence is:

UNIT CONFIG > LOOP ISOLATE > ENABLE><Enter and hold>

After the command is entered, it will be saved in the EEPROM.

Sub-Menu

Command

To Set Press:

Loop Isolation

Enable

Enter and hold

Disable

Enter and hold

Back

Enter

Table 3.10

 

Loop Isolation

Lock the Console

Setting this option to 

Enable

 locks the system settings. If there is no

password set, a prompt will request one be entered.

UNIT CONFIG > CONSOLE LOCK> ENABLE><Enter and hold>

Содержание FSW-0802TX

Страница 1: ...FSW 0802 1201TX 8 12 Ports Nway Switch User s Manual 53100000300C DOC FSWM801...

Страница 2: ......

Страница 3: ...rated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the user s manual may cause interference in whic...

Страница 4: ......

Страница 5: ...CONSOLE 3 1 Message Zone 3 2 Observing Basic Port Information 3 2 Port Indicator Definitions 3 3 Console Keys 3 4 Power On Self Test 3 4 Menu Tree 3 4 Exiting the Menu Tree 3 7 Observing Network Traf...

Страница 6: ...e You Forget the Password 3 200 Back Door Password 3 200 Restart the Switch 3 200 Restore System Setting 3 211 About The Switch 3 222 System Info 3 223 APPENDIX A TECHNICAL SPECIFICATIONS A 1 APPENDIX...

Страница 7: ...mpact switch designed to meet the requirement for today s growing network It introduces the management function with very low cost while maintaining high performance in networking Users can monitor th...

Страница 8: ...effectiveness the Nway Ethernet Switch FSW 0802 1201TX provides the following key features One Uplink port shared 8 12 10 100 Mbps Ports auto negotiate full duplex fragment free fast store forward mod...

Страница 9: ...use menu Traffic utilization and collision ratio indication on all the ports Status monitoring such as speed duplex mode switching mode on all ports Console keys to carry out all console command funct...

Страница 10: ...eys that enable users to easily monitor and configure the system The Mini Console provides watch diagnostic functions including port settings status monitoring traffic utilization collision and error...

Страница 11: ...Rear Panel Layout The MII port power socket and fan are located on the rear panel Note The MII port is not hot pluggable FSW 0802 1201TX will detect an MII connection only during the system start Figu...

Страница 12: ......

Страница 13: ...hubs in standard EIA 19 inch racks Align the mounting brackets on the sides of the unit with the slit over the holes Secure the screws tightly to fix the brackets to the device Then place the device i...

Страница 14: ...Installation 2 2 Connecting Other Network Devices Connecting Workstations Figure 2 3 shows the Nway Ethernet Switch FSW 0802 1201TX in a client server topology Figure 2 1 Connecting Workstations...

Страница 15: ...Installation 2 3 Connecting Ethernet Hubs This example shows how 10M hubs can be connected to the Nway Ethernet Switch FSW 0802 1201TX to form a larger network Figure 2 2 Connecting Ethernet Hubs...

Страница 16: ...llation 2 4 Connecting Fast Ethernet Hubs This example shows how 10 100 M hubs can be connected to the Nway Ethernet Switch FSW 0802 1201TX to form a larger network Figure 2 3 Connecting Fast Ethernet...

Страница 17: ...onsole is similar to the following illustration Becoming familiar with and understanding the functions of the Mini Console will easily enable the user to utilize the full power of the FSW 0802 1201TX...

Страница 18: ...Basic Port Information The basic port information such as link up link down transmit receive activity enabled disabled as well as auto partition can be easily spotted through the Port Indicators locat...

Страница 19: ...rned on If the outline is blinking it means it has been partitioned automatically due to some error condition such as a loop or broadcast storm that has been detected Port Indicator Definitions The fo...

Страница 20: ...is UTILIZATION To display other main menu items press the Next Prev key Menu Tree There are up to four levels in the Menu Tree main menu sub menu and up to two configuration levels To move from a mai...

Страница 21: ...Rx Tx FRAMES Tx OCTETS PKT LOSS BACK MAIN MENU MAIN MENU PORT STATUS PORT 1 12 Auto scrolls through the port s running status ALL PORTS 10M PORTS 100M PORTS HALF DUPLEX FULL DUPLEX ENABLED DISABLED CU...

Страница 22: ...DISABLE CUT THROUGH STORE FWD VLAN VLAN 1 8 BACK MAIN MENU GROUP BUFF MODE H BUFF MODE M BUFF MODE L BACK MAIN MENU MAIN MENU UNIT CONFIG _ _ _ _ PSW when system locked STORM DET ENABLE DISABLE BACK L...

Страница 23: ...the load It is easy to do so with FSW 0802 1201TX by selecting the UTILIZATION menu While utilization is displayed in the message zone the level of Utilization for the enabled ports is indicated by t...

Страница 24: ...the same port at approximately the same time The Collision percent can be calculated with the following formula Collision Ratio number of packets collided number of packets transmitted 100 Monitoring...

Страница 25: ...o view each configuration The configuration is displayed in the Message Zone and the bar scales under the port numbers that are configured to this setting are illuminated No bar scales are visible for...

Страница 26: ...tings ALL PORTS 10M PORTS 100M PORTS HALF DUPLEX FULL DUPLEX ENABLED DISABLED CUT THROUGH STORE FWD VLAN GROUP BUFF MODE H BUFF MODE M BUFF MODE L BACK MAIN MENU MAIN MENU Table 3 4 Port Status Monito...

Страница 27: ...rors The packet contains a CRC error The packet is oversize Rx ALIGN ERR To display the number of alignment errors OVERSIZE Rx To display the number of packets received that were longer than 1532 octe...

Страница 28: ...d port from using up all the resources However since the loading varies from port to port the resources allocated for each port should be changed based on the traffic via the Mini Console to get the b...

Страница 29: ...ts are by just going through the sub menu of PORT SETTING without making any confirmation When you see an item that begins with an the port is set in that mode While AUTO NEGO is set the speed and dup...

Страница 30: ...G PORT 1 8 12 10BASE T 100BASE T AUTO NEGO FULL DUPLEX HALF DUPLEX ENABLE DISABLE CUT THROUGH STORE FWD VLAN GROUP VLAN 1 8 BACK MAIN MENU BUFFER MODE H BUFFER MODE M BUFFER MODE L BACK MAIN MENU MAIN...

Страница 31: ...before the VLAN that the port is configured in To change to a different VLAN press and hold Enter at the desired VLAN an appears before the VLAN and the is removed from the previously configured VLAN...

Страница 32: ...ports share buffer resources and constitute a group For a gain in performance you may want to set one port in this group to High 2 ports to Medium and one port to Low Table 3 8 FSW 1201TX Buffer Grou...

Страница 33: ...st storm When the Broadcast Storm Protection is Enabled the system will monitor the incoming packets to see if that port is enduring a broadcast storm While Broadcast Storm is detected the port will b...

Страница 34: ...at port The port number frame will blink indicating it has been temporarily isolated Every 8 minutes the port will be released to see if it is still looping The function of LOOP ISOLATE is disabled at...

Страница 35: ...normal password while the others are used for Back door Password The regular password is assigned by the user and the Back door Password depends on the Key Code See Back Door Password on page 3 20 fo...

Страница 36: ...n Case You Forget the Password In case the password is forgotten the back door password can be used Back Door Password The Back Door Password is useful in case you are locked out of the system because...

Страница 37: ...s will be updated Restart the Switch in the event that it does not behave normally Restore System Setting In case you want to set the system setting to the default value simply enter the command UNIT...

Страница 38: ...gh systems settings Press any key to disable When you enter the following command SYSTEM INFO Press Enter The following is displayed SSRAM 12M packet buffer HW VER 2 1 SW VER 1 0 KEY CODE DB Fan Failu...

Страница 39: ...t 5 FSW 1201TX 12 10 100BASE TX Nway Ethernet RJ 45 ports 1 MII port shared with port 7 Smart Console Operation Capable of device configuration device port management and network monitor Console manag...

Страница 40: ...ching Performance RAM 1MB per device FSW 0802TX 1 5MB per device FSW 1201TX Port memory buffer memory 3 User defined modes Packet filtering forwarding rate 148 800 pps per 100BASE TX port 14 880 pps p...

Страница 41: ...x B Error Messages In several cases when the system detects abnormal conditions it will generate an error message and the system may halt The following table shows how many error messages may occur an...

Страница 42: ...EM EEPROM is out of memory System restart EPM WR ERROR Error when the device is writing EEPROM memory No action until next power up EPM RD ERROR Error when the device is reading the EEPROM memory No a...

Страница 43: ...Appendix C C 1 Chapter 4 Menu Tree Root UTILIZATION COLLISION STATISTICS PORT 1 12 MAIN MENU RX FRAMES RX OCTETS Rx ALIGN ERR Rx PKT ERR OVERSIZE Rx Tx FRAMES Tx OCTETS PKT LOSS BACK MAIN MENU...

Страница 44: ...ATUS PORT 1 12 Auto scrolls through the port s settings ALL PORTS 10M PORTS 100M PORTS HALF DUPLEX FULL DUPLEX ENABLED DISABLED CUT THROUGH STORE FWD VLAN GROUP BUFF MODE H BUFF MODE M BUFF MODE L BAC...

Страница 45: ...12 MAIN MENU 10BASE T 100BASE X AUTO NEGO HALF DUPLEX FULL DUPLEX ENABLE DISABLE CUT THROUGH STORE FWD VLAN GROUP BUFF MODE H BUFF MODE M BUFF MODE L BACK MAIN MENU UNIT CONFIG STORM DET ENABLE DISAB...

Страница 46: ...Appendix C C 4 CONSOLE LOCK ENABLE BACK SET PASSWORD PSW SYS RESTART SYS DEFAULT MAIN MENU SYSTEM INFO SSRAM 12M HW VER 2 1 SW VER 1_00 KEY CODE DB...

Страница 47: ...53100000300A...

Отзывы: