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METRODATA LTD 

WCM1400/WCM1800/WCM1820 

 

Quick Start Guide 

 

76-02-087 Rev D 

 

44 of 61 

5.2.4  VCG ( VCAT Group Configuration ) 

A VCAT Group, VCG is a collection of E1 ports bonded together.  The WCM1800 supports 

upto 4 VCAT Groups, with VLAN/STAG ID being used to select which VCG a frame will 

traverse. 

To configure a VCG, first select, 

 

and then configure, 

 

 

Содержание WCM1400 BNC

Страница 1: ...ick Start Guide DATE 2nd April 2012 DOCUMENT NO 76 02 087 REVISION D PREPARED BY Ian Banbrook Metrodata Ltd Fortune House Crabtree Office Village Eversley Way Egham Surrey TW20 8RY UK Tel 44 1 784 744...

Страница 2: ...of Metrodata Ltd Fortune House Crabtree Office Village Eversley Way Egham Surrey TW20 8RY United Kingdom DISCLAIMER Metrodata Ltd makes no representations or warranties with respect to the contents h...

Страница 3: ...61 Document Revision History 28th January 2011 XA Document Created 18th February 2011 XB Document Updated 25th March 2011 A Document Released 8th July 2011 B Updated for new OAM screens 4th November 2...

Страница 4: ...0 2 3 WCM1800 VLAN Access Mode 11 2 4 WCM1800 S Tag Mode 11 2 5 Point to Multi Point 12 3 THEORY OF OPERATION 13 3 1 Frame Encapsulation 13 3 2 Virtual Concatenation and LCAS 14 4 QUICK START CONFIGUR...

Страница 5: ...ity 37 5 2 2 5 Framing 37 5 2 2 6 CRC 4 38 5 2 2 7 sigNalling 38 5 2 2 8 VCG 38 5 2 3 SFP Port 39 5 2 3 1 SFP Type 39 5 2 3 2 State 39 5 2 3 3 Link State 39 5 2 3 4 Speed 40 5 2 3 5 Auto Negotiation 4...

Страница 6: ...Ethertype 51 5 2 5 3 Untagged To 52 5 3 Global Status Screen 53 5 3 1 State 53 5 3 2 Alarms 53 5 4 Proxy Mode Remote Management 54 5 5 SNMP Management 56 5 5 1 Read Write Trap Community 56 5 5 2 Cont...

Страница 7: ...to the bonded E1 capacity The E1 ports operate in framed mode using G 704 with CRC 4 multi frame enabled The WCM1800 range offers upto 4 VCAT groups VCG allowing for upto 4 remote devices to be conne...

Страница 8: ...n one of four priority queues The WCM1800 supports link OAM IEEE802 3ah and RSTP for loop prevention 1 1 Product Rear Panels The following sections show the rear panels of the various products all of...

Страница 9: ...METRODATA LTD WCM1400 WCM1800 WCM1820 Quick Start Guide 76 02 087 Rev D 9 of 61 1 1 4 WCM1800 BNC Rear panel 1 1 5 WCM1400 RJ45 Rear panel 1 1 6 WCM1400 BNC Rear Panel...

Страница 10: ...ith packets being switched based on MAC address alone The WCM1800 supports both local and remote switching Management traffic is not isolated from the through data traffic and both units may be manage...

Страница 11: ...800 VLAN Access Mode In this mode both WCM1800 units have VLAN support enabled VLAN 101 is used as the management VLAN and in unit WCM1800 A the VLAN group 101 includes the LAN Port 1 the Manager and...

Страница 12: ...application WCM1800 A is operating with VLAN mode enabled and is operating LAN Port 2 in VLAN Trunk Mode Incoming packets must be tagged and are switched based on the incoming tag Individual VLAD ID...

Страница 13: ...LC and GFP for encapsulation of an Ethernet Frame The native Ethernet frame is encapsulated under GFP as shown The GFP core header is four bytes long and is used for packet delineation To decouple the...

Страница 14: ...l which will enable a failed link to be removed from the VCAT group to allow traffic to pass over a reduced capacity link VCAT inserts a single overhead byte immediately following FAS pattern in the f...

Страница 15: ...to the terminal port The WCM1800 has a password protected menu driven user interface When a management session is connected to the WCM1800 the welcome banner will be displayed as shown Metrodata WCM1...

Страница 16: ...letter e g alarm eXtension which is selected with X or x On the right side of the display is a list of what is below each item This could be menu This indicates a sub menu will be entered display This...

Страница 17: ...e In order for two WCM1800 units to communicate they must be connected using the E1 WAN ports The E1 interfaces must be configured to match the network NTU configuration The WAN port is configured by...

Страница 18: ...N port is set to Framed mode and that CRC 4 is enabled If a WAN port is not used the port state should be changed to down to remove it from the alarm tables 4 4 Configure the VCAT Group From the data...

Страница 19: ...METRODATA LTD WCM1400 WCM1800 WCM1820 Quick Start Guide 76 02 087 Rev D 19 of 61...

Страница 20: ...METRODATA LTD WCM1400 WCM1800 WCM1820 Quick Start Guide 76 02 087 Rev D 20 of 61 4 5 Set IP Address From the Main Setup Menu select Management and then the Interface Menu...

Страница 21: ...n set this parameter to ON to enable DHCP address allocation IP Address If DHCP is not used you must manually assign the required IP address for correct installation into the network Net mask If DHCP...

Страница 22: ...try with destination and mask as 0 0 0 0 and configure the next hop as required Note that the default route is added automatically when DHCP is used 4 7 Save the Configuration From the Main Set Up men...

Страница 23: ...uick Start Guide 76 02 087 Rev D 23 of 61 5 Advanced Configuration 5 1 System Configuration The system menu provides the basic administrative configuration items for the WCM1800 and should be configur...

Страница 24: ...Time Zone 12 Since NTP uses GMT time zone adjustment allows the correct time to be configured wherever the units are deployed globally NTP Server Enter the IP address of the network NTP server Accordi...

Страница 25: ...For security each character is shown on the screen as an asterisk Once the new password is entered the display changes to Enter new password Password Verify Re enter the new password If the password...

Страница 26: ...trodata WCM1800 Local connection to Password view to view only However it is possible to customize the welcome banner to give further information about the unit or to inform the user of access restric...

Страница 27: ...ing alpha numeric characters with each line supporting upto 80 characters as in the example below Once the welcome message has been defined it may be displayed using the display screen option In some...

Страница 28: ...METRODATA LTD WCM1400 WCM1800 WCM1820 Quick Start Guide 76 02 087 Rev D 28 of 61 which leads to a welcome banner displayed as follows when a management session is started up...

Страница 29: ...er issues a warm start request the WCM1800 will indicate that a warm start is in progress and then close the connection 5 1 7 Cold Start Cold Start will return the WCM1800 to the factory default condi...

Страница 30: ...Ports This section deals with the configuration of each of the user data port types including E1 and LAN ports A simple configuration will be shown for each type of port The port configuration is acc...

Страница 31: ...e The port state is the administrative state of this port The state may be up or down When UP the port is enabled and will generate a Major Alarm if the link is physically down When in the DOWN state...

Страница 32: ...tiating mode the speed is manually set by the user 5 2 1 5 Duplex When in auto negotiating mode the duplex displayed is the highest that will be advertised to the link partner In non auto negotiating...

Страница 33: ...de 76 02 087 Rev D 33 of 61 1 1 1 1 Counters Each LAN port provides a set of counters supporting the basic MIB 2 SNMP parameters as below 5 2 1 8 Traffic Management The Traffic management menu configu...

Страница 34: ...may be defined as either an Access or Trunk port An Access port expects untagged frames to ingress and will strip tags for egress frames The port will add the configured VLAN ID A Trunk port expects...

Страница 35: ...OAM The LAN port may operate in Active Passive or have OAM functions disabled In Active mode the port will transmit a status request once a second to solicit information from the attached peer device...

Страница 36: ...Rev D 36 of 61 5 2 2 WAN Port The WAN Port menu is selectes as below Note ports 5 6 7 and 8 are not available on the WCM1400 the WCM1820 supports ports upto 16 To configure the parameters for the ind...

Страница 37: ...product type it will display either Balanced RJ45 E1 port operates in 120ohm balanced mode presented on the RJ45 connector Unbalanced BNC E1 port operates in 75 ohm unbalance mode presented on a pair...

Страница 38: ...or disabled For VCAT operation CRC 4 MUST be enabled 5 2 2 7 sigNalling When operating in framed mode the signaling option determines whether timeslot 16 is available for payload With Signalling Enabl...

Страница 39: ...evices will indicate the SFP type however some lower cost lower quality SFP devices may not be correctly programmed an will indicate UNKNOWN as the device type cannot be determined If no SFP is fitted...

Страница 40: ...tively this can be set to AUTO in which case the software will read the device type from the SFP and select either 1000BaseX or 100BaseFX determined by the information read back 5 2 3 5 Auto Negotiati...

Страница 41: ...Start Guide 76 02 087 Rev D 41 of 61 5 2 3 8 Counters The counters option displays the MIB 2 statistics gathered for the SFP port 5 2 3 9 Traffic Management The Traffic management menu configures Port...

Страница 42: ...may be defined as either an Access or Trunk port An Access port expects untagged frames to ingress and will strip tags for egress frames The port will add the configured VLAN ID A Trunk port expects...

Страница 43: ...k OAM The LAN port may operate in Active Passive or have OAM functions disabled In Active mode the port will transmit a status request once a second to solicit information from the attached peer devic...

Страница 44: ...D 44 of 61 5 2 4 VCG VCAT Group Configuration A VCAT Group VCG is a collection of E1 ports bonded together The WCM1800 supports upto 4 VCAT Groups with VLAN STAG ID being used to select which VCG a f...

Страница 45: ...admin down state to prevent alarms being raised 5 2 4 2 Encapsulation The encapsulation menu configures the method for encapsulating frames on the WAN port 5 2 4 2 1 Encapsulation The options for enca...

Страница 46: ...yload scrambling is enabled to prevent ghosting of the idle patterns 5 2 4 2 5 Flow Control The WCM1800 supports pause based flow control When flow control is enabled priority based queuing is disable...

Страница 47: ...WAN Bonding enabled however ALL circuits must be operational for traffic to flow VCAT LCAS WAN Bonding and LCAS control to ensure failed circuits are removed and traffic will continue to pass 5 2 4 4...

Страница 48: ...5 2 4 5 1 Traffic Type There are two types of traffic that may traverse the VCG User traffic is traffic not destined for the manager whilst Mgmt is traffic directed to the management CPU If remote man...

Страница 49: ...D must be amongst the ID s allocated to this VCG 5 2 4 5 4 Control VLAN The control VLAN ID is used to transport OAM and other control protocols For control protocols to pass over the VCG the control...

Страница 50: ...METRODATA LTD WCM1400 WCM1800 WCM1820 Quick Start Guide 76 02 087 Rev D 50 of 61 5 2 4 7 Counters The VCG provides counters showing the packets correctly transmitted and received as below...

Страница 51: ...olation Mode There are three operating modes None VLAN STAG ID processing disabled VLAN Switching is based on the VLAN TAG ID QinQ Switching is based on the S TAG ID 5 2 5 2 QinQ Ethertype Whilst the...

Страница 52: ...Start Guide 76 02 087 Rev D 52 of 61 5 2 5 3 Untagged To The VCG s will only pass traffic that has a VLAN or STAG ID Untagged frames will have an ID of 0 added before traversing the VCG This option s...

Страница 53: ...ay be Up or Down If a port is down then all alarm status processing is disabled on that port if a port is up then further information is displayed 5 3 2 Alarms Where a port is or has been in an alarme...

Страница 54: ...de management of the remote stations This method of management enables a single management connection to effectively manage units on different VLANs The WCM1800 uses the VLAN ID to switch frames betwe...

Страница 55: ...er has been configured the remote clients need to be configured using the client configuration screen and for remote management over a VCG select the VCG With proxy mode management the server acts as...

Страница 56: ...ed to control access to the unit via SNMP Separate communities may be configured for Read Write or Trap access 5 5 2 Contact Person The contact person is the SNMP MIB 2 system SysContact parameter the...

Страница 57: ...ecific manager addresses must be configured Once a Manager is assigned the WCM1800 will respond to polls and generate traps for that manager The WCM1800 supports up to 10 configured Network Management...

Страница 58: ...configuration must be saved to the EEPROM to provide non volatile storage To save the configuration select Update EEPROM from the Main Setup Menu At the prompt respond Y and the configuration will be...

Страница 59: ...on In networks where firewalls and NAT addressing is used server mode must be used otherwise either client or sever mode may be used 6 1 TFTP Configuration Under the management menu select TFTP and en...

Страница 60: ...figuration To use TFTP the IP address of the remote server must be entered For security reasons it is recommended to change the default settings for software and config file names to prevent unauthori...

Страница 61: ...of Frame LOM Loss of VCAT LCAS MultiFrame AIS Receiving AIS All 1 s RAI Remote Alarm Indication DNU VCAT LCAS in failed state so do not use this link 7 2 LAN Port LKDN Link Down LLF Link Loss Forward...

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