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CHAPTER 2: Overview

7

2. Overview

2.1 Introduction

The Managed 24-Port 10/100/1000 Ethernet Switch with 2 SFP (Small Fiber Port) Dual Media meets all IEEE
802.3/802.3ab/802.3u/802.3x/802.1q Gigabit and Fast Ethernet specifications. It has 24 10/100/1000-Mbps
twisted-pair ports and 2 Gigabit twisted-pair/SFP fiber slots for fiber modules. Connect 24 10/100/1000 twisted-
pair devices, 23 10/100/1000 twisted-pair and one fiber device, or 22 10/100/1000 twisted-pair and two fiber
devices to the switch. Manage the switch through an Ethernet port using Web-based management. The network
administrator can logon to the switch to monitor, configure, and control each port’s activity.

Ports 23 and 24 autodetect two media types: 10/100/1000-Mbps twisted pair and 1000-Mbps Small Fiber Port
(SFP) fiber. An SFP fiber transceiver module is used for high-speed connection expansion. The 1000-Mbps SFP
fiber transceivers are Gigabit Ethernet ports that fully comply with all IEEE 802.3z and 1000BASE-SX/LX
standards. The switch is compatible with the following optional fiber modules.

• LC Multimode Fiber Module (LGB200C-MLC) works with 850-nm multimode fiberoptic cable that’s up to

960 feet (300 m) long

• LC Single-Mode Fiber Module (LGB200C-SLC10) works with 1310-nm single-mode fiberoptic cable that’s

up to 6.3 miles (10 km) long

• LC Single-Mode Fiber Module (LGB200C-SLC30) works with 1550-nm single-mode fiberoptic cable that’s

up to 18.9 miles (30 km) long

The switch features QoS (Quality of Service), VLAN, and trunking. QoS enables the switch to support the ToS
field of an IP header (equal DSCP low 3 bits) on Layer 3 of network framework and six kinds of special network
transmission events on Layer 4. With VLAN, the switch supports port-based VLAN and IEEE802.1Q Tag VLAN.
It also supports 24 active VLANs and VLAN ID 1–4094. Port trunking allows one or more links to be aggregated
together to form a Link Aggregation Group by the static setting.

2.2 Components

2.2.1 F

RONT

P

ANEL

The 24 10/100/1000-Mbps twisted-pair ports and 2 Gigabit twisted-pair/SFP fiber slots for fiber modules are on
the switch’s front panel. The LED display area on the panel’s left side contains a Power LED, 24 10/100/
1000-Mbps twisted-pair ports LEDs, 24 Link/Act LEDs, and 2 1000-Mbps SFP fiber ports 23–24 LEDs. The
numbered components in Figure 2-1 correspond to the descriptions in Table 2-1.

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Summary of Contents for LGB2003A

Page 1: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 2005 Black Box Corporation All rights reserved ...

Page 2: ...rs a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com CUSTOMER SUPPORT INFORMATION OCTOBER 2005 LGB2003A Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media ...

Page 3: ......

Page 4: ... is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Th...

Page 5: ... que impidan el flujo de aire por los orificios de ventilación 10 El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificadores que producen calor 11 El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación o como se indique en el aparato...

Page 6: ...a trademark of Microsoft Corporation in the United States and or other countries Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners NOTE The Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media is called the Giga Switch in the software screens and also in the screens shown in this manual Both names refer to the LGB2003A switch ...

Page 7: ... Chassis into a 19 Inch Wiring Closet Rail 11 3 2 Cabling Requirements 12 3 2 1 Twisted Pair Ports 12 3 2 2 Fiber Ports 12 3 2 3 VLAN Examples 13 3 3 Management 14 3 4 Assigning an IP Address 14 3 5 Typical Applications 15 4 Web Based Management 18 4 1 Home 20 4 2 Configuration 20 4 2 1 System 20 4 2 2 Ports 22 4 2 3 VLAN Mode 23 4 2 4 VLAN Group 25 4 2 5 PVID 28 4 2 6 Aggregation 29 4 2 7 Mirror ...

Page 8: ...CONTENTS 5 Chapter Page 4 4 3 Factory Default 56 4 4 4 Logout 57 5 Troubleshooting 58 5 1 Problems You May Experience 58 5 2 Calling Black Box 59 5 3 Shipping and Packaging 59 ...

Page 9: ...warding Filtering Rate 14 800 pps at 10 Mbps 148 800 pps at 100 Mbps 1 488 000 pps at 1000 Mbps MAC Addresses 8 K 4K VLAN table entries Flow Control IEEE 802 3x compliant for full duplex backpressure flow control for half duplex User Controls Reset button Connectors LGB2003A 24 10 100 1000 Mbps twisted pair RJ 45 female 2 Gigabit twisted pair SFP fiber slots for fiber modules 1 power connector LGB...

Page 10: ...timode Fiber Module LGB200C MLC works with 850 nm multimode fiberoptic cable that s up to 960 feet 300 m long LC Single Mode Fiber Module LGB200C SLC10 works with 1310 nm single mode fiberoptic cable that s up to 6 3 miles 10 km long LC Single Mode Fiber Module LGB200C SLC30 works with 1550 nm single mode fiberoptic cable that s up to 18 9 miles 30 km long The switch features QoS Quality of Servic...

Page 11: ...een when 1000 Mbps speed is active Amber when 100 Mbps speed is active Off when 10 Mbps speed is active 1000 Mbps SFP fiber ports Light when connection to the remote device is good 23 24 LEDs Blink when any traffic is present Off when the module connection is not good Gigabit Ethernet Ports 24 RJ 45 female connectors attach to network devices SFP Fiber Ports Consists of 2 slots for fiber modules R...

Page 12: ...wing items If anything is missing or damaged contact Black Box at 724 746 5500 1 Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media 1 AC power cord 2 Mounting brackets 8 Screws 4 Rubber feet with adhesive backing 1 CD ROM containing this user s manual in PDF format ...

Page 13: ... 1 INSTALLING THE OPTIONAL MODULES NOTE If you are not installing modules in Ports 23 24 skip this section 1 Verify that the SFP module is the right model and conforms to the chassis 2 Slide the module into the slot as shown in Figure 3 1 Make sure that the module is properly seated against the slot socket connector Figure 3 1 Installing an optional SFP fiber transceiver in the switch 3 Install th...

Page 14: ...itch including modules Once the power is on all LEDs except for the Power LED will light immediately and then turn off The Power LED will remain on After resetting the bootloader will load the firmware into memory This takes approximately 30 seconds After that all LEDs will flash once and the switch will automatically run a self test 3 1 4 INSTALLING THE CHASSIS ON A DESKTOP Attach the four includ...

Page 15: ...acket mounted chassis to the rail then tighten the screws 3 2 Cabling Requirements 3 2 1 TWISTED PAIR PORTS For either a Fast Ethernet or Gigabit Ethernet twisted pair network connection use Category 5 or 5e cable that s 328 feet 100 m long or shorter We recommend Category 5e cable for Gigabit Ethernet networks 3 2 2 FIBER PORTS Connect multimode fiber to the LGB200C MLC module Use single mode fib...

Page 16: ...he switch supports both port based VLAN and tag based VLAN They are different in practical use especially in physical location Figure 3 3 Port based VLAN In this example The same VLAN members can t be located on different switches Every VLAN member can t access all other VLAN members The switch manager has to assign different names for each VLAN group at one switch Managed 24 Port 10 100 1000 Ethe...

Page 17: ...to access and use the Web based management interface SNMP management is not described in this manual since it depends on your network management system 3 4 Assigning an IP Address For IP address configuration you need to type in three parameters IP address subnet mask and default gateway Your system administrator can tell you what these values are for your network See Figure 4 2 in Chapter 4 Manag...

Page 18: ...It also uses the two fiber module slots for LC fiber connections Figure 3 5 Network connection between the remote site and the central site Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Me...

Page 19: ...4 PORT 10 100 1000 ETHERNET SWITCH WITH 2 SFP DUAL MEDIA 16 Figure 3 6 shows a peer to peer connection Figure 3 6 Peer to peer network connection Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media ...

Page 20: ...s with other network devices and hosts Figure 3 7 Office network connection Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media ...

Page 21: ...w the menus The default values for the Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media are listed below IP Address 192 168 1 1 Subnet Mask 255 255 255 0 Default Gateway 192 168 1 254 Password admin 1 Use the Web browser interface by first typing in the default IP address http 192 168 1 1 in the address row in the browser A screen like the one shown in Figure 4 1 appears Figure 4 ...

Page 22: ... 4 2 System Configuration screen 4 Type in the subnet mask such as 255 255 255 0 and the default gateway 192 168 1 254 5 Type in the system name the default is Giga Switch then your password the default password is admin Click on the Apply button 6 This completes the login procedure The Home page Figure 4 3 appears For a description of the other options shown in the System Configuration screen MAC...

Page 23: ...port status Figure 4 3 Home page The Home page has a vertical menu on the left side of the screen Options include Configuration Monitoring and Maintenance These three groups are discussed in Sections 4 2 through 4 4 4 2 Configuration Eleven functions are available in the Configuration menu These are described in Sections 4 2 1 through 4 2 11 4 2 1 SYSTEM To get to the System Configuration menu sho...

Page 24: ...witch s hardware version Serial Number The serial number assigned by the manufacturer IP Address You can configure the IP address and fill in new values Click on the Apply button to update The default IP address is 192 168 1 1 Subnet Mask You can configure the subnet mask by typing in new values Click on the Apply button to update The default subnet mask is 255 255 255 0 Default Gateway If a packe...

Page 25: ...s mode you can set reset mode and flow control To get to the Port Configuration menu not shown in this manual click on Port in the Configuration menu on the Home page Table 4 2 describes the menu options in the Port Configuration menu Table 4 2 Port Configuration menu options Parameter Description Mode Set the speed and duplex for each port If using 1 Gbps fiber select auto speed 1000 full duplex ...

Page 26: ... 3 describes the options shown in Figure 4 5 Table 4 3 VLAN Mode screen options Parameter Description VLAN Mode Choose Disable Port based Tag based or Metro mode from the drop down menu Disable will stop the switch s VLAN function This is the default setting Port based VLAN is defined by port Any incoming or outgoing packet from any one port of a port based VLAN will be accepted For example suppos...

Page 27: ... enabled when you select Metro mode from the drop down menu in Figure 4 5 When you select 23 from the drop down menu Except for port 23 each switch port can t transmit packets to each other Each port groups a VLAN with Port 23 so a total of 23 groups consisting of two members are formed When you select 23 and 24 from the drop down menu Except for ports 23 and 24 each switch port can t transmit pac...

Page 28: ...ion shows the existing information for VLAN groups Choose this option to modify delete or add a new VLAN group To get to the VLAN Group Configuration screen shown in Figure 4 6 click on VLAN Group in the Home page Figure 4 6 Tag Based VLAN Configuration screen ...

Page 29: ...ue VID Member Lists the group members To enable this option click on the box in Figure 4 6 Add Group button Click on this button to add a group Additional information is provided below Delete Group button Click on this button to delete a group Additional information is provided on the next page Add Group When you click on Add Group in Figure 4 6 the screen shown in Figure 4 7 appears Type in a new...

Page 30: ...n Figure 4 6 the screen shown in Figure 4 8 appears Click on the box to the left of the ID for the group that you want to delete then click on the Delete Group button to delete that group Or click on the Add Group button to go back to Figure 4 7 Figure 4 8 Delete VLAN Group screen ...

Page 31: ...guration menu shown in the Home screen Figure 4 9 PVID Configuration screen Table 4 5 describes the options shown in Figure 4 9 Table 4 5 PVID Configuration options Parameter Description Port 1 24 Lists port numbers from 1 to 24 PVID Select a PVID value between 1 and 4094 First create a tag based VLAN with VID x For example if port x receives an untagged packet the switch will apply the PVID for e...

Page 32: ...n screen is used to configure the switch s link aggregation settings Bundle more than one port with the same speed full duplex and the same MAC into a single logical port For example if there are three Fast Ethernet ports aggregated in a logical port the resulting logical port has bandwidth three times as high as a single Fast Ethernet port s bandwidth To get to the Aggregation Trunking Configurat...

Page 33: ...oup Apply button Click on this button to save your changes 4 2 7 MIRROR Mirror configuration monitors the network traffic For example if port A and port B are the sniffer port and source port respectively the traffic passed by port B will be copied to port A for monitoring NOTE When configuring the mirror function avoid setting a port as a sniffer port and an aggregated port at the same time To ge...

Page 34: ...s port 1 Source Port Check the box underneath the port you want to choose Apply button Click on this button to save your selections 4 2 8 QUALITY OF SERVICE The switch s QoS function supports VLAN tagged priority for up to 8 priorities To get to the screen shown in Figure 4 12 click on Quality of Service in the Configuration menu on the Home page Figure 4 12 Quality of Service Configuration screen...

Page 35: ...kets with no tag will be considered high priority The initial Default Class value is High VLAN Tag Select this to enable VLAN tagging Click on Configure to configure Priority this option IP ToS Classification Select this to apply Layer 3 on a network framework Click on Configure to configure this option IP TCP UDP Select this then click on Configure to set L4 QoS configuration Port Classification ...

Page 36: ...s the options shown in Figure 4 13 Table 4 9 VLAN Tag Priority screen options Parameter Description Port Choose VLAN Tag QoS for ports 1 24 from the drop down menu Click on All to set up all ports at once Bits Values can be Bit 0 1 or 2 Class Select High or Low priority from the drop down menu Apply button Click on this button to save your changes CHAPTER 4 Web Based Management ...

Page 37: ... IP ToS Classification in Figure 4 12 Then click on Configure Figure 4 14 QoS ToS Configuration screen Table 4 10 describes the options shown in Figure 4 14 Table 4 10 QoS ToS Configuration screen options Parameter Description Port Select ports 1 24 from the drop down menu Or choose All to select all ports Bits Displays Bit 0 1 or 2 Class Choose High or Low from the drop down menu Apply button Cli...

Page 38: ...assification in the Quality of Service QoS screen Figure 4 12 Then click on Configure Figure 4 15 Simple Mode screen For a description of the parameters shown in Figure 4 15 see Table 4 11 Advanced Mode To get to the Advanced mode screen Figure 4 16 click on Advance in Figure 4 15 To go back to the Simple Mode screen Figure 4 15 click on Simple in Figure 4 16 CHAPTER 4 Web Based Management ...

Page 39: ...assification Click on this button to enable Down prioritize Web browsing e mail FTP Click on this button to enable and news Prioritize IP telephony VoIP Click on this button to enable Prioritize iSCSI Click on this button to enable Prioritize Web browsing e mail FTP transfers Click on this button to enable and news Prioritize Streaming Audio Video Click on this button to enable Prioritize Database...

Page 40: ...on to work on the selected ports Select the All option to set up all ports at the same time Custom Type in the number of the Special TCP UDP port you want to select Apply button Click on this button to apply the selections If you click on the Simple button in Figure 4 16 you ll return to the screen shown in Figure 4 15 and all L4 port numbers will disappear IP Diffserv Classification see Figure 4 ...

Page 41: ...e this function to work on Valid options are 1 24 To set up all ports at one time select All from the drop down menu All Traffic for Ingress Rate Limiting Set up the limit of Ingress bandwidth for the port you choose Incoming traffic will be discarded if the rate exceeds the value you set in the Data Rate field If flow control is enabled pause frames are also generated All Traffic State Select Dis...

Page 42: ...om 0 to 1000 in the Data Rate box to represent the data rate in Mbps All Traffic for Egress Rate Limiting Set up the limit of Egress bandwidth for the port you chose in the Port Number field at the top of the screen Packet transmission will be delayed if the rate exceeds the value you type a number from 0 to 1000 in the Data Rate field Traffic may be lost if the Egress buffers are full Select Enab...

Page 43: ...en Table 4 14 describes the parameters shown in Figure 4 18 Table 4 14 Trap Events Configuration screen parameters Parameter Description Trap IP This is the IP address of the device that you want to collect data from Two different device addresses can be selected Trap means to collect data from the specified IP address System Event Warm Boot Cold Boot or Illegal Login Check the Warm Boot box to st...

Page 44: ... box to indicate a link down Link Down Counter lists the number of link downs Check the Rx error threshold box to indicate an Rx error threshold Rx error threshold counter lists the number of Rx error thresholds Check the Tx error threshold box to indicate a Tx error threshold Tx error threshold counter lists the number of Tx error thresholds Error threshold Lists the number of packets in 5 second...

Page 45: ...532 bytes To get to the screen shown in Figure 4 19 click on Max Packet Length in the Configuration menu in the Home screen Figure 4 19 Maximum Packet Length screen Table 4 15 lists the options shown in Figure 4 19 Table 4 15 Maximum Packet Length screen options Parameter Description Port Lists ports from 1 to 24 Max Frame Size From the drop down menu choose 1532 or 9216 bytes Apply button Click o...

Page 46: ...ut the port traffic good or bad To get to the screen shown in Figure 4 20 click on Statistics Overview in the Monitoring menu in the Home page Figure 4 20 Statistics Overview for All Ports screen Table 4 16 describes the fields shown in Figure 4 20 Table 4 16 Statistics Overview options Parameter Description Port Lists the port numbers from 1 to 24 Tx Bytes Lists the total transmitted bytes Tx Fra...

Page 47: ...the detailed number for each port s traffic In Figure 4 21 the window can show all counter information at the same time To get to this screen click on Detailed Statistics in the Monitoring menu shown in the Home page Table 4 17 describes the parameters shown in Figure 4 21 Figure 4 21 Statistics Overview for Specific Ports Table 4 17 Statistics Overview for Specific Ports screen parameters Paramet...

Page 48: ...ed broadcast packets Tx Multicast Shows the number of the transmitted multicast packets Rx 64 Bytes The number of 64 byte frames in good and bad packets received Rx 65 127 Bytes The number of 65 127 byte frames in good and bad packets received Rx 128 255 Bytes The number of 128 255 byte frames in good and bad packets received Rx 256 511 Bytes The number of 256 511 byte frames in good and bad packe...

Page 49: ...tes with invalid CRC Rx Jabber The number of long frames according to the maximum length register with invalid CRC Rx Drops The number of frames dropped due to the lack of a receiving buffer Tx Collisions The number of collisions while transmitting frames Tx Drops The number of frames dropped due to excessive collision late collision or frame aging Tx FIFO Drops The number of frames dropped due to...

Page 50: ...firmware version Hardware Version Shows the switch s hardware version Serial Number The serial number is assigned by the manufacturer IP Address Shows the switch s IP address Subnet Mask Shows the switch s subnet mask Default Gateway Shows the switch s default gateway MAC Address Shows the switch s Ethernet MAC address System Name Shows the switch s name Auto Logout Timer mins Shows the amount of ...

Page 51: ...ot If the link is connected to a working device the Link Status will show the current link speed and duplex If the connection is broken it will show Down The hardware on both connected devices determines this There is no default value Speed Displays the speed and duplex of all ports Three speeds are supported for twisted pair media 10 Mbps 100 Mbps and 1000 Mbps If the media is 1 Gbps fiber only 1...

Page 52: ...s the parameters shown in Figure 4 24 Table 4 20 Aggregation screen parameters Parameter Description Normal Displays the ports that do not join any aggregation trunking group Group 1 8 Displays the group members VLAN The VLAN Status screens Figures 4 25 4 26 and 4 27 display the status of VLAN mode and VLAN group setting To get to these screens click on Status in the Maintenance menu in the Home s...

Page 53: ...ure 4 26 Port Based VLAN Figure 4 27 VLAN Metro Mode screen Table 4 21 describes the parameters shown in Figures 4 25 4 26 and 4 27 Table 4 21 VLAN screen parameters Parameter Description VLAN Mode Tag based Port based or Metro mode VID 1 24 Member Port numbers from 1 to 24 ...

Page 54: ...k on Mirror in the Status menu Figure 4 28 Mirror status screen Table 4 22 describes the parameters in Figure 4 28 Table 4 22 Mirror status screen options Parameter Description Sniffer Mode Choose to display Disable or Enable Sniffer Port Displays the port number of the selected port 1 24 Source Port Displays the port number of the selected port 1 24 CHAPTER 4 Web Based Management ...

Page 55: ...ap Event screen Table 4 23 describes the parameters shown in Figure 4 29 Table 4 23 Trap Event screen options Parameter Description Trap IP This displays the IP address es of the device s that you selected to collect data from Trap means to collect data from the specified IP address One or two Trap IP addresses can be displayed Warm Boot Check this box to select warm boot Cold Boot Check this box ...

Page 56: ...Down Check this box to enable link down Link Down Counter Displays the number of link downs counted Rx error Threshold Check this box to enable Rx error threshold Rx error Threshold Counter Displays the number of Rx errors counted Tx error Threshold Check this box to enable Tx error threshold Tx error Threshold Counter Displays the number of Tx errors counted Error threshold Displays the number of...

Page 57: ... in the Maintenance menu Figure 4 3 then click on Max Packet Length in the Status menu Figure 4 30 Maximum Packet Length screen Table 4 24 explains the options shown in Figure 4 30 Table 4 24 Maximum Packet Length screen parameters Parameter Description Port Lists ports 1 24 Max Frame Size Displays the settings for the maximum size packet length that each switch port can accept The maximum length ...

Page 58: ...on the front panel to reset the switch and to retrieve the default setting After upgrading the software you must reboot to have the new configuration take effect To get to the Warm Restart screen shown in Figure 4 31 click on Warm Restart in the Maintenance menu in the Home screen Figure 4 3 Figure 4 31 Warm Restart screen To perform a warm reset press the Yes button ...

Page 59: ...ion from the Factory Default screen To get to the Restore Default Configuration screen shown in Figure 4 32 click on Factory Default in the Maintenance menu on the Home screen If you want to restore all configurations including the IP address setting to the factory default press the Reset button on the front panel NOTE For the Reset button You must press and hold the Reset button for at least 3 se...

Page 60: ...g out and exit the browser the switch will automatically log out Besides the manual logout and implicit logout you can also set the Auto Logout Timer in the system configuration function to On or Off To get to the Logout screen shown in Figure 4 33 click on Logout in the Maintenance menu in the Home screen Figure 4 33 Logout screen Press the Logout button to log out ...

Page 61: ... Possible Solution 4 Attach a device with a known working port Problem Computer A can connect to computer B but it can t connect to computer C through the Managed 24 Port 10 100 1000 Ethernet Switch with 2 SFP Dual Media Possible Cause 1 Check computer C s Link Act LED Possible Solution 1 If the Link Act LED is off try another network device on this connection Possible Cause 2 Computer C s network...

Page 62: ... 746 5500 Before you do make a record of the history of the problem We will be able to provide more efficient and accurate assistance if you have a complete description including the nature and duration of the problem when the problem occurs the components involved in the problem any particular application that when used appears to create the problem or make it worse 5 3 Shipping and Packaging If ...

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