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Zyxel VES-1624FT-55A [180/312] Chapter 30 dhcp snoop
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Chapter 30 DHCP Snoop
VES-1624FT-55A User’s Guide
180
Overflow There is a limit to the number of IP addresses the DHCP server can assign at
one time to each port. This field displays the number of requests from DHCP
clients above this limit.
Overflow requests are dropped by the IP DSLAM.
Clear Click Clear to delete the information the IP DSLAM has learned about DHCP
packets. This resets every counter in this screen.
Table 60 DHCP Counter (continued)
LABEL DESCRIPTION
Содержание
- Port vdsl2 remote ip dslam 1
- User s guide 1
- Ves 1624ft 55a 1
- Www zyxel com 1
- About this user s guide 3
- It is recommended you use the web configurator to configure the ip dslam 3
- Document conventions 4
- Notes tell you other important information for example other things you may need to configure or helpful tips or recommendations 4
- Warnings tell you about things that could harm you or your ip dslam 4
- Document conventions 5
- Figures in this user s guide may use the following generic icons the ip dslam icon is not an exact representation of your ip dslam 5
- Icons used in figures 5
- Ves 1624ft 55a user s guide 5
- For your safety be sure to read and follow all warning notices and instructions 6
- Safety warnings 6
- Advanced application 31 9
- Basic settings 9 9
- Contents overview 9
- Introduction 1 9
- Appendices and index 89 10
- Routing protocol alarm and management 47 10
- Troubleshooting and specifications 73 10
- About this user s guide 11
- Chapter 1 introducing the ip dslam 3 11
- Chapter 2 hardware installation 1 11
- Chapter 3 front panel connections 7 11
- Contents overview 11
- Document conventions 11
- List of figures 3 11
- List of tables 7 11
- Part i introduction 31 11
- Safety warnings 11
- Table of contents 11
- Table of contents 1 11
- Chapter 4 mdf connections 3 12
- Chapter 5 power connections 5 12
- Chapter 6 fan maintenance 7 12
- Chapter 7 introducing the web configurator 1 12
- Chapter 8 initial configuration 9 12
- Part ii basic settings 59 12
- Chapter 10 system information 1 13
- Chapter 11 general setup 5 13
- Chapter 12 user account 7 13
- Chapter 13 switch setup 1 13
- Chapter 14 ip setup 5 13
- Chapter 15 enet port setup 7 13
- Chapter 16 xdsl port setup 9 13
- Chapter 9 home and port statistics screens 3 13
- Chapter 17 xdsl profiles setup 117 14
- Chapter 18 xdsl line data 25 14
- Chapter 19 vlan 33 14
- Chapter 20 protocol vlan 39 14
- Part iii advanced application 131 14
- Chapter 21 igmp 41 15
- Chapter 22 static multicast 51 15
- Chapter 23 multicast vlan 53 15
- Chapter 24 packet filtering 57 15
- Chapter 25 mac filter 59 15
- Chapter 26 rapid spanning tree protocol 61 15
- Chapter 27 port authentication 67 16
- Chapter 28 port security 71 16
- Chapter 29 dhcp relay 73 16
- Chapter 30 dhcp snoop 77 16
- Chapter 31 2684 routed mode 81 16
- Chapter 32 pppoa to pppoe 89 16
- Chapter 33 dscp 95 17
- Chapter 34 tls pvc 97 17
- Chapter 35 double tagging dt 03 17
- Chapter 36 acl 07 17
- Chapter 37 downstream broadcast 13 17
- Chapter 38 upstream broadcast 15 17
- Chapter 39 syslog 17 17
- Chapter 40 access control 19 18
- Chapter 41 pppoe intermediate agent 25 18
- Chapter 42 mtu size 29 18
- Chapter 43 oui filter 31 18
- Chapter 44 n1mac 33 18
- Chapter 45 dot3ad 37 18
- Chapter 46 mac force forwarding 41 18
- Chapter 47 static routing 49 19
- Chapter 48 alarm 51 19
- Chapter 49 maintenance 59 19
- Chapter 50 diagnostics 63 19
- Chapter 51 mac table 69 19
- Chapter 52 arp table 71 19
- Part iv routing protocol alarm and management 247 19
- Appendix a changing a fuse 91 20
- Appendix b legal information 93 20
- Chapter 53 troubleshooting 75 20
- Chapter 54 product specifications 83 20
- Part v troubleshooting and specifications 273 20
- Part vi appendices and index 289 20
- Appendix c customer support 97 21
- Index 03 21
- List of figures 23
- List of tables 27
- Introduction 31
- Applications 33
- Hapter 33
- Introducing the ip dslam 33
- Mtu application 33
- Overview 33
- Curbside application 34
- The ip dslam can also be used by an internet service provider isp in a street cabinet to form a mini pop point of presence to provide broadband and phone services to residential areas that are too far away from the isp to avail of dsl or pstn phone service residents need an adsl modem for data services connected as shown in the previous figure 34
- Hardware features 35
- Software features 36
- Dust filter installation 41
- General installation instructions 41
- Hapter 41
- Hardware installation 41
- Desktop installation procedure 42
- Installation scenarios 42
- Use the dust filter to prevent dust from getting into the device and possibly damaging it clean the dust filter regularly at least once every two to three months in order to have sufficient airflow through the device to avoid over heating 42
- Do not block the ventilation holes leave space between ip dslams when stacking 43
- Make sure the rack will safely support the combined weight of all the equipment it contains 43
- Rack mounted installation 43
- Do not block the ventilation holes leave space between ip dslam when stacking 44
- Failure to use the proper screws may damage the unit 44
- Make sure the position of the ip dslam does not make the rack unstable or top heavy take all necessary precautions to anchor the rack securely before installing the unit 44
- Front panel 47
- Front panel connections 47
- Front panel ports 47
- Hapter 47
- 100m auto sensing ethernet 48
- Chapter 3 front panel connections 48
- Front panel leds 48
- Table 2 led descriptions 48
- The following table describes the led indicators on the front panel of the ip dslam 48
- The ip dslam has two 1000 100mbps auto sensing ethernet ports there are two factors related to ethernet speed and duplex mode in 1000 100mbps fast ethernet the speed can be 100mbps or 1000mbps and the duplex mode can be half duplex or full duplex the auto negotiation capability makes one ethernet port able to negotiate with a peer automatically to obtain the connection speed and duplex mode that both ends support 48
- Use the ethernet ports for subtending you can daisy chain more ip dslam or other ethernet switches 48
- Ves 1624ft 55a user s guide 48
- When auto negotiation is turned on an ethernet port on the ip dslam negotiates with the peer automatically to determine the connection speed and duplex mode if the peer ethernet port does not support auto negotiation or turns off this feature the ip dslam determines the connection speed by detecting the signal on the cable and using half duplex mode when the ip dslam s auto negotiation is turned off an ethernet port uses the pre configured speed and duplex mode when making a connection thus requiring you to make sure that the settings of the peer ethernet port are the same in order to connect 48
- Ethernet default settings 49
- For better performance and lower radiation noise use shielded ethernet cables 49
- Sfp mini gbic slots 49
- To avoid possible eye injury do not look directly into an operating fiber optic module s connectors 49
- Transceiver installation 49
- Transceiver removal 50
- Alarm connection 51
- Console port connection 51
- Vdsl connections 52
- Hapter 53
- Mdf connections 53
- Mdf connections overview 53
- Mdf main distribution frame 53
- Telco 50 cables 54
- Hapter 55
- Power connections 55
- Power connections overview 55
- Fan maintenance 57
- Fan maintenance introduction 57
- Hapter 57
- Removing and installing the fan module 57
- Basic settings 59
- Accessing the web configurator 61
- Hapter 61
- Introducing the web configurator 61
- Screen privilege levels 61
- Web configurator overview 61
- Chapter 7 introducing the web configurator 63
- In the navigation panel click a menu item to reveal a list of submenu links click a submenu link to go to the corresponding screen 63
- Navigation panel 63
- Table 3 navigation panel submenu links 63
- Ves 1624ft 55a user s guide 63
- Chapter 7 introducing the web configurator 64
- Table 4 web configurator screens 64
- The following table briefly describes the functions of the screens that you open by clicking the navigation panel s sub links 64
- Ves 1624ft 55a user s guide 64
- Chapter 7 introducing the web configurator 65
- Table 4 web configurator screens continued 65
- Ves 1624ft 55a user s guide 65
- Changing your password 66
- Logging out of the web configurator 67
- Saving your configuration 67
- Use config save when you are done with a configuration session 67
- Hapter 69
- Initial configuration 69
- Initial configuration overview 69
- If you change the ip address of the ip dslam after you click apply ip setting you have to use the new ip address to log into the web configurator again 70
- Hapter 73
- Home and port statistics screens 73
- Home screen 73
- Chapter 9 home and port statistics screens 74
- Ethernet port statistics screen 74
- Table 5 home continued 74
- Use this screen to display statistics about an ethernet port to open this screen click an ethernet port s number in the home screen 74
- Ves 1624ft 55a user s guide 74
- Chapter 9 home and port statistics screens 75
- Figure 34 port statistics ethernet 75
- Table 6 port statistics ethernet 75
- The following table describes the labels in this screen 75
- Ves 1624ft 55a user s guide 75
- Chapter 9 home and port statistics screens 76
- Table 6 port statistics ethernet continued 76
- Ves 1624ft 55a user s guide 76
- Chapter 9 home and port statistics screens 77
- Table 6 port statistics ethernet continued 77
- Use this screen to display statistics about a vdsl port to open this screen click a vdsl port s number in the home screen 77
- Vdsl port statistics screen 77
- Ves 1624ft 55a user s guide 77
- Chapter 9 home and port statistics screens 78
- Figure 35 port statistics vdsl 78
- Table 7 port statistics vdsl 78
- The following table describes the labels in this screen 78
- Ves 1624ft 55a user s guide 78
- Chapter 9 home and port statistics screens 79
- Table 7 port statistics vdsl continued 79
- Ves 1624ft 55a user s guide 79
- Hapter 81
- System information 81
- Chapter 10 system information 82
- Table 8 system info 82
- The following table describes the labels in this screen 82
- Ves 1624ft 55a user s guide 82
- Chapter 10 system information 83
- Table 8 system info continued 83
- Ves 1624ft 55a user s guide 83
- General setup 85
- Hapter 85
- Chapter 11 general setup 86
- Table 9 general setup continued 86
- Ves 1624ft 55a user s guide 86
- Hapter 87
- User account 87
- User account screen 87
- Authentication 88
- Authentication screen 88
- Chapter 12 user account 88
- Figure 39 authentication 88
- Table 10 user account continued 88
- Use this screen to set up the authentication policies and settings by which administrators can access the ip dslam 88
- Ves 1624ft 55a user s guide 88
- Chapter 12 user account 89
- Table 11 authentication 89
- The following table describes the labels in this screen 89
- Ves 1624ft 55a user s guide 89
- Daisychain switch mode 91
- Hapter 91
- Port isolation with daisychain switch mode example 91
- Switch modes 91
- Switch setup 91
- Chapter 13 switch setup 92
- Figure 40 port isolation with daisychain switch mode example 92
- Figure 41 switch setup 92
- Internet 92
- Switch setup 92
- Switch setup screen 92
- Table 12 switch setup 92
- The following table describes the labels in this screen 92
- Ves 1624ft 55a user s guide 92
- Chapter 13 switch setup 93
- Table 12 switch setup continued 93
- Ves 1624ft 55a user s guide 93
- Hapter 95
- Ip setup 95
- Chapter 14 ip setup 96
- Table 13 ip setup continued 96
- Ves 1624ft 55a user s guide 96
- Enet port setup 97
- Hapter 97
- Alarm profiles 99
- Dsl profiles 99
- Hapter 99
- Interleave delay 99
- Xdsl port setup 99
- Fast mode 100
- Frequency band plan 100
- Limit psd mask 100
- Rfi radio frequency interference 100
- Vdsl parameters 100
- Frequency 12 mhz x y 3 5 5 8 101
- Itu t g993 defines eight vdsl2 profiles 8a 8b 8c 8d 12a 12b 17a and 30a based on each annex specifying spectral characters annexes a b and c 101
- Note at the time of writing the ip dslam supports the annex a with 8a 8b 8c 8d 12a 12b and 17a the following table summarizes the vdsl2 profiles supported by the ip dslam 101
- The eu number in the limit psd mask is a tone index a tone spacing 4 125 khz is used for vdsl2 profile from 8a up to 17a so eu32 means the optional band ending at around 138 khz see more information in section 16 on page 101 101
- The sample of optional band psd mask and associated frequency band used in the device is shown next 101
- Vdsl2 profiles 101
- Impulse noise protection inp 102
- Dpbo electrical length 103
- Configured versus actual rate 104
- Default settings 104
- Downstream and upstream 104
- Dsl standards overview 104
- Chapter 16 xdsl port setup 105
- Figure 47 xdsl port setup 105
- Figure 48 select ports 105
- Table 19 xdsl port setup 105
- The following table describes the labels in this screen 105
- Ves 1624ft 55a user s guide 105
- Xdsl port setup 105
- Xdsl port setup screen 105
- Chapter 16 xdsl port setup 106
- Table 19 xdsl port setup continued 106
- Ves 1624ft 55a user s guide 106
- Xdsl port setting screen 106
- Xdsl port setup and then click a port s index number 106
- Chapter 16 xdsl port setup 108
- Table 20 xdsl port setting 108
- The following table describes the labels in this screen 108
- Ves 1624ft 55a user s guide 108
- Chapter 16 xdsl port setup 109
- Figure 50 optionmask options 109
- Table 20 xdsl port setting continued 109
- Ves 1624ft 55a user s guide 109
- Chapter 16 xdsl port setup 110
- Table 20 xdsl port setting continued 110
- Ves 1624ft 55a user s guide 110
- Chapter 16 xdsl port setup 111
- Click the custom button in the xdsl port setting screen to open this screen your settings in this screen are one of the factors determining the psd mask result 111
- Dpbo epsd custom 111
- Figure 51 dpbo epsd custom 111
- Table 20 xdsl port setting continued 111
- Ves 1624ft 55a user s guide 111
- Chapter 16 xdsl port setup 112
- Configure a channel on the port for voice service set the channel to use the pvid of the static vlan you configured assign the channel a high priority 112
- Defining virtual channels also called permanent virtual circuits or pvcs allows you to set priorities for different services or subscribers you can define up to eight channels on each dsl port and use them for different services or levels of service you set the pvid that is assigned to untagged frames received on each channel you also set an ieee 802 p priority for each of the pvids in this way you can assign different priorities to different channels and consequently the services that get carried on them or the subscribers that use them 112
- For example you want to give high priority to voice service on one of the dsl ports 112
- Super channel 112
- Table 21 dpbo epsd custom 112
- The following table describes the labels in this screen 112
- The ip dslam forwards frames belonging to vlan groups that are not assigned to specific channels to the super channel enable the super channel option to allow a channel forward frames belonging to multiple vlan groups that are not assigned to other channels the super channel functions in the same way as the channel in a single channel environment one port can have only one super channel 112
- Use the dsl edit port channel setup screen to 112
- Use the edit static vlan screen to configure a static vlan on the ip dslam for voice on the port 112
- Ves 1624ft 55a user s guide 112
- Virtual channels 112
- Vc mux 113
- Vc setup screen 113
- Chapter 16 xdsl port setup 114
- Note at the time of writing you cannot edit the vpi and vci if you want to change them add a new vc with the desired settings then you can delete any unwanted vcs 114
- Table 22 vc setup 114
- The following table describes the labels in this screen 114
- Ves 1624ft 55a user s guide 114
- Chapter 16 xdsl port setup 115
- Delete 115
- Figure 54 select ports 115
- Table 22 vc setup continued 115
- Ves 1624ft 55a user s guide 115
- Chapter 16 xdsl port setup 116
- Figure 55 select ports 116
- Table 22 vc setup continued 116
- Ves 1624ft 55a user s guide 116
- Hapter 117
- Xdsl port profile screen 117
- Xdsl profiles setup 117
- Chapter 17 xdsl profiles setup 118
- Table 23 xdsl port profile continued 118
- Ves 1624ft 55a user s guide 118
- A layer 2 classifier groups traffic according to the ethernet type vlan group mac address and or port number a layer 3 classifier groups traffic according to the ip address and or tcp udp protocol number 119
- Chapter 17 xdsl profiles setup 119
- Configure ipqos on the ip dslam to group and prioritize application traffic in queues for downstream direction toward cpe devices and fine tune network performance setting up ipqos involves four parameters 119
- Ipqos overview 119
- Quality of service qos refers to both a network s ability to deliver data with minimum delay and the networking methods used to control the use of bandwidth without qos all traffic data is equally likely to be dropped when the network is congested this can cause a reduction in network performance and make the network inadequate for time critical application such as video on demand 119
- Table 23 xdsl port profile continued 119
- Ves 1624ft 55a user s guide 119
- Ipqos profile screen 120
- Alarm profile 121
- Alarm profile screen 121
- Alarm profiles define vdsl port alarm thresholds the ip dslam sends an alarm trap and generates a syslog entry when the thresholds of the alarm profile are exceeded 121
- Chapter 17 xdsl profiles setup 121
- Note cir pir two times of cir in a queue for example cir is 1024 you must enter the pir in the same queue equal or less than 2048 2 x 1024 121
- Note it s highly recommended to use 8 queues for traffic classifica tion 121
- Note the cbs should be equal or less than pbs in a queue 121
- Table 24 ipqos profile continued 121
- Use the top part of the screen with the add and cancel buttons to add or edit alarm profiles the rest of the screen displays the configured alarm profiles 121
- Ves 1624ft 55a user s guide 121
- Chapter 17 xdsl profiles setup 122
- Figure 58 alarm profile 122
- Table 25 alarm profile 122
- The following table describes the labels in this screen 122
- Ves 1624ft 55a user s guide 122
- Chapter 17 xdsl profiles setup 123
- Table 25 alarm profile continued 123
- Ves 1624ft 55a user s guide 123
- Hapter 125
- Xdsl line data 125
- Xdsl line rate info screen 125
- Chapter 18 xdsl line data 126
- Discrete multi tone dmt modulation divides up a line s bandwidth into tones this screen displays the number of bits transmitted for each tone this can be used to determine the quality of the connection whether a given sub carrier loop has sufficient margins to support xdsl transmission rates and possibly to determine whether certain specific types of interference or line attenuation exist 126
- Table 26 xdsl line rate info continued 126
- The better or shorter the line the higher the number of bits transmitted for a dmt tone the maximum number of bits that can be transmitted per dmt tone is 15 126
- This screen displays an xdsl port s line bit allocation 126
- Ves 1624ft 55a user s guide 126
- Xdsl line data screen 126
- Chapter 18 xdsl line data 127
- Figure 60 xdsl line data 127
- Line data 127
- Line performance 127
- Table 27 xdsl line data 127
- The bit allocation contents are only valid when the link is up 127
- The following table describes the labels in this screen 127
- These counters display line performance data that has been accumulated since the system started the definitions of near end far end are always relative to the xtu c xdsl termination unit central office xtu c refers to downstream traffic from the ip dslam xtu r xdsl termination unit remote refers to upstream traffic from the subscriber 127
- Ves 1624ft 55a user s guide 127
- Xdsl performance screen 127
- Chapter 18 xdsl line data 128
- Figure 61 xdsl performance 128
- Table 28 xdsl performance 128
- The following table describes the labels in this screen 128
- Ves 1624ft 55a user s guide 128
- Chapter 18 xdsl line data 129
- Line statistics 129
- Table 28 xdsl performance continued 129
- Use this screen to display dsl line statistics for details about the line quality and channel conditions 129
- Ves 1624ft 55a user s guide 129
- Xdsl statistics screen 129
- Chapter 18 xdsl line data 130
- Figure 62 xdsl statistics 130
- Table 29 xdsl statistics 130
- The following table describes the labels in this screen 130
- Ves 1624ft 55a user s guide 130
- Advanced application 131
- Hapter 133
- Introduction to ieee 802 q tagged vlan 133
- Introduction to vlans 133
- Forwarding tagged and untagged frames 134
- Vlan status screen 134
- Chapter 19 vlan 135
- Figure 63 vlan status 135
- Table 30 vlan status 135
- The following table describes the labels in this screen 135
- Ves 1624ft 55a user s guide 135
- Chapter 19 vlan 136
- Figure 64 static vlan setting 136
- Static vlan setting 136
- Static vlan setting screen 136
- Table 31 static vlan setting 136
- The following table describes the labels in this screen 136
- Ves 1624ft 55a user s guide 136
- You can assign a port to be a member of a vlan group or prohibit a port from joining a vlan group in this screen this is an ieee 802 q vlan 136
- Chapter 19 vlan 137
- Figure 65 vlan port setting 137
- Table 31 static vlan setting continued 137
- Table 32 vlan port setting 137
- The following table describes the labels in this screen 137
- Use this screen to specify port vlan ids and to set whether or not ethernet ports propagate vlan information to other devices 137
- Ves 1624ft 55a user s guide 137
- Vlan port setting 137
- Vlan port setting screen 137
- Chapter 19 vlan 138
- Figure 66 select ports 138
- Table 32 vlan port setting continued 138
- Ves 1624ft 55a user s guide 138
- Hapter 139
- Protocol based vlan 139
- Protocol vlan 139
- The protocol vlan screen 139
- Chapter 20 protocol vlan 140
- Note the pvc must be a super channel see section 16 1 on page 113 and the associated vlan must be created first 140
- Table 33 protocol vlan 140
- Ves 1624ft 55a user s guide 140
- Hapter 141
- Igmp snooping 141
- Ip multicast addresses 141
- Igmp proxy 142
- Igmp status screen 142
- Bandwidth 143
- Chapter 21 igmp 143
- Figure 69 igmp status 143
- Igmp bandwidth screen 143
- Table 34 igmp status 143
- The following table describes the labels in this screen 143
- Ves 1624ft 55a user s guide 143
- Chapter 21 igmp 144
- Figure 70 igmp bandwidth 144
- Table 35 igmp bandwidth 144
- The following table describes the labels in this screen 144
- Ves 1624ft 55a user s guide 144
- Bandwidth port 145
- Bandwidth port setup screen 145
- Chapter 21 igmp 145
- Figure 71 bandwidth port setup 145
- Table 35 igmp bandwidth continued 145
- Table 36 bandwidth port setup 145
- The following table describes the labels in this screen 145
- Ves 1624ft 55a user s guide 145
- Chapter 21 igmp 146
- Config 146
- Config screen 146
- Figure 72 igmp config 146
- Table 37 igmp config 146
- The following table describes the labels in this screen 146
- Use this screen to configure your igmp settings 146
- Ves 1624ft 55a user s guide 146
- Igmp filter profile screen 147
- Chapter 21 igmp 148
- Figure 74 igmp port group 148
- Igmp port group screen 148
- Port group 148
- Table 38 igmp filter profile continued 148
- Table 39 igmp port group 148
- The following table describes the labels in this screen 148
- Ves 1624ft 55a user s guide 148
- Igmp count screen 149
- Igmp port info screen 149
- Chapter 21 igmp 150
- Figure 76 igmp count 150
- Table 41 igmp counts 150
- The following table describes the labels in this screen 150
- Ves 1624ft 55a user s guide 150
- Hapter 151
- Static multicast 151
- Static multicast screen 151
- 00 5e 10 10 1 152
- 00 5e xx xx x 152
- Chapter 22 static multicast 152
- Table 42 static multicast continued 152
- Ves 1624ft 55a user s guide 152
- Hapter 153
- Multicast vlan 153
- Multicast vlan overview 153
- Mvlan status screen 153
- Chapter 23 multicast vlan 154
- Figure 79 mvlan setup 154
- Mvlan setup 154
- Mvlan setup screen 154
- Table 43 mvlan status 154
- The following table describes the labels in this screen 154
- Ves 1624ft 55a user s guide 154
- Chapter 23 multicast vlan 155
- Mvlan group 155
- Mvlan group screen 155
- Table 44 mvlan setup 155
- The following table describes the labels in this screen 155
- Ves 1624ft 55a user s guide 155
- Chapter 23 multicast vlan 156
- Figure 80 mvlan group 156
- Table 45 mvlan group 156
- The following table describes the labels in this screen 156
- Ves 1624ft 55a user s guide 156
- Hapter 157
- Packet filter screen 157
- Packet filtering 157
- Chapter 24 packet filtering 158
- Table 46 packet filter continued 158
- Ves 1624ft 55a user s guide 158
- Hapter 159
- Mac filter 159
- Mac filter introduction 159
- Mac filter screen 159
- Chapter 25 mac filter 160
- Table 47 mac filter continued 160
- Ves 1624ft 55a user s guide 160
- Hapter 161
- Rapid spanning tree protocol 161
- Rstp and stp 161
- Chapter 26 rapid spanning tree protocol 162
- Figure 83 stp root ports and designated ports 162
- In rstp the devices send bpdus every hello time if an rstp aware device does not get a hello bpdu after three hello times pass or the max age the device assumes that the link to the neighboring bridge is down this device then initiates negotiations with other devices to reconfigure the network to re establish a valid network topology 162
- In stp once a stable network topology has been established all devices listen for hello bpdus transmitted from the root bridge if an stp aware device does not get a hello bpdu after a predefined interval max age the device assumes that the link to the root bridge is down this device then initiates negotiations with other devices to reconfigure the network to re establish a valid network topology 162
- Rstp assigns three port states to eliminate packet looping while stp assigns five see table 49 on page 162 a device port is not allowed to go directly from blocking state to forwarding state so as to eliminate transient loops 162
- Rstp aware devices exchange bridge protocol data units bpdus periodically when the bridged lan topology changes a new spanning tree is constructed 162
- See the ieee 802 w standard for more information on rstp see the ieee 802 d standard for more information on stp 162
- Table 49 rstp port states 162
- Ves 1624ft 55a user s guide 162
- Rstp status screen 163
- The following table describes the labels in this screen 163
- You can not use the ip dslam as the rstp root device 163
- Chapter 26 rapid spanning tree protocol 164
- Rstp config 164
- Rstp config screen 164
- Table 50 rstp status continued 164
- Ves 1624ft 55a user s guide 164
- Chapter 26 rapid spanning tree protocol 165
- Figure 85 rstp config 165
- Table 51 rstp config 165
- The following table describes the labels in this screen 165
- Ves 1624ft 55a user s guide 165
- Chapter 26 rapid spanning tree protocol 166
- Table 51 rstp config continued 166
- Ves 1624ft 55a user s guide 166
- Hapter 167
- Introduction to authentication 167
- Introduction to local user database 167
- Port authentication 167
- Radius 167
- Chapter 27 port authentication 168
- Figure 87 radius 168
- Port authentication 168
- Radius screen 168
- Table 52 radius 168
- The following table describes the labels in this screen 168
- Ves 1624ft 55a user s guide 168
- 802 x screen 169
- Chapter 27 port authentication 169
- Figure 88 802 x 169
- Table 52 radius continued 169
- Table 53 802 x 169
- The following table describes the labels in this screen 169
- Ves 1624ft 55a user s guide 169
- Chapter 27 port authentication 170
- Table 53 802 x continued 170
- Ves 1624ft 55a user s guide 170
- Hapter 171
- Port security 171
- Port security overview 171
- Port security screen 171
- Chapter 28 port security 172
- Figure 90 select ports 172
- Table 54 port security continued 172
- Ves 1624ft 55a user s guide 172
- Dhcp relay 173
- Dhcp relay agent information option option 82 173
- Hapter 173
- Tr 101 format 173
- Dhcp relay screen 174
- Private format 174
- Chapter 29 dhcp relay 175
- Figure 93 dhcp relay 175
- Table 57 dhcp relay 175
- The following table describes the labels in this screen 175
- Ves 1624ft 55a user s guide 175
- Chapter 29 dhcp relay 176
- Table 57 dhcp relay continued 176
- Ves 1624ft 55a user s guide 176
- Dhcp snoop 177
- Dhcp snoop overview 177
- Dhcp snoop screen 177
- Hapter 177
- Chapter 30 dhcp snoop 178
- Dhcp snoop status 178
- Dhcp snoop status screen 178
- Figure 95 dhcp snoop status 178
- Table 58 dhcp snoop 178
- The following table describes the labels in this screen 178
- Ves 1624ft 55a user s guide 178
- Chapter 30 dhcp snoop 179
- Dhcp counter 179
- Dhcp counter screen 179
- Figure 96 dhcp counter 179
- Table 59 dhcp snoop status 179
- Table 60 dhcp counter 179
- The following table describes the labels in this screen 179
- Ves 1624ft 55a user s guide 179
- Chapter 30 dhcp snoop 180
- Table 60 dhcp counter continued 180
- Ves 1624ft 55a user s guide 180
- 2684 routed mode 181
- 2684 routed mode example 181
- Hapter 181
- Routed mode 181
- 2684 routed pvc screen 182
- Ip 10 0 0 182
- Ip 192 68 0 01 182
- Ip 192 68 0 02 vlan 1 182
- Pvc 8 35 182
- Wan ip 192 68 0 00 lan ip 10 0 0 0 182
- Chapter 31 2684 routed mode 183
- Figure 98 2684 routed pvc 183
- Table 61 2684 routed pvc 183
- The following table describes the labels in this screen 183
- Ves 1624ft 55a user s guide 183
- 2684 routed domain screen 184
- Chapter 31 2684 routed mode 184
- Figure 99 2684 routed domain 184
- Routed domain 184
- Table 61 2684 routed pvc continued 184
- Table 62 2684 routed domain 184
- The following table describes the labels in this screen 184
- Use this screen to configure domains for 2684 routed mode traffic the domain is the range of ip addresses behind the subscriber s device the cpe this includes the cpe device s lan ip addresses and the ip addresses of the lan computers 184
- Ves 1624ft 55a user s guide 184
- Chapter 31 2684 routed mode 185
- Figure 100 rpvc arp proxy 185
- Rpvc arp proxy 185
- Rpvc arp proxy screen 185
- Table 62 2684 routed domain continued 185
- Use this screen to view the address resolution protocol table of ip addresses of cpe devices using 2684 routed mode and configure how long the device is to store them 185
- Ves 1624ft 55a user s guide 185
- 2684 routed gateway screen 186
- Chapter 31 2684 routed mode 186
- Figure 101 2684 routed gateway 186
- Routed gateway 186
- Table 63 rpvc arp proxy 186
- Table 64 2684 routed gateway 186
- The following table describes the labels in this screen 186
- Use this screen to configure gateway settings 186
- Ves 1624ft 55a user s guide 186
- Chapter 31 2684 routed mode 187
- Table 64 2684 routed gateway continued 187
- Ves 1624ft 55a user s guide 187
- Hapter 189
- Pppoa to pppoe 189
- Pppoa to pppoe overview 189
- Pppoa to pppoe screen 189
- Chapter 32 pppoa to pppoe 190
- Figure 103 pppoa to pppoe 190
- Note make sure the vid is not already used for multicast vlan or tls pvc 190
- Table 65 pppoa to pppoe 190
- The following table describes the labels in this screen 190
- Ves 1624ft 55a user s guide 190
- Chapter 32 pppoa to pppoe 191
- Note at the time of writing you cannot edit the vpi and vci if you want to change them add a new pvc with the desired settings then delete any unwanted pvcs 191
- Pppoa to pppoe and then click an index number 191
- Pppoa to pppoe status screen 191
- Table 65 pppoa to pppoe continued 191
- Ves 1624ft 55a user s guide 191
- Chapter 32 pppoa to pppoe 192
- Figure 104 pppoa to pppoe status 192
- Table 66 pppoa to pppoe status 192
- The following table describes the labels in this screen 192
- Ves 1624ft 55a user s guide 192
- Chapter 32 pppoa to pppoe 193
- Table 66 pppoa to pppoe status continued 193
- Ves 1624ft 55a user s guide 193
- Dscp overview 195
- Dscp setup screen 195
- Hapter 195
- Chapter 33 dscp 196
- Dscp map 196
- Dscp map screen 196
- Figure 106 dscp map 196
- Table 67 dscp setup continued 196
- Table 68 dscp map 196
- The following table describes the labels in this screen 196
- Ves 1624ft 55a user s guide 196
- Hapter 197
- Tls network example 197
- Tls pvc 197
- Transparent lan service tls overview 197
- Tls screen 198
- Note make sure the vid is not already used for pppoa to pppoe conversions 199
- The following table describes the labels in this screen 199
- Tls pvc 199
- Tls pvc screen 199
- You can not configure pppoa to pppoe and tls pvc settings on the same pvc 199
- Chapter 34 tls pvc 200
- Figure 109 tls pvc 200
- Note at the time of writing you cannot edit the vpi and vci if you want to change them add a new pvc with the desired settings then you can delete any unwanted pvcs 200
- Note make sure the vid is not already used for pppoa to pppoe conversions 200
- Table 70 tls pvc 200
- The following table describes the labels in this screen 200
- Ves 1624ft 55a user s guide 200
- Chapter 34 tls pvc 201
- Table 70 tls pvc continued 201
- Ves 1624ft 55a user s guide 201
- Configuring dt 203
- Double tagging dt 203
- Double tagging overview 203
- Hapter 203
- Chapter 35 double tagging dt 204
- Figure 110 dt 204
- Table 71 dt 204
- The following table describes the labels in this screen 204
- Ves 1624ft 55a user s guide 204
- Chapter 35 double tagging dt 205
- Configuring dt pvc 205
- Dt pvc to display the screen as shown 205
- Figure 111 dt pvc 205
- Table 71 dt 205
- Table 72 dt pvc 205
- The following table describes the labels in this screen 205
- Use this screen to view the existing dt entries it s recommended that you add a new entry in this screen only when you want to translate untagged packets into double tagged ones before forwarding them 205
- Ves 1624ft 55a user s guide 205
- Chapter 35 double tagging dt 206
- Note at the time of writing you cannot edit the vpi and vci if you want to change them add a new pvc with the desired settings then you can delete any unwanted pvcs 206
- Table 72 dt pvc 206
- Ves 1624ft 55a user s guide 206
- Access control logic acl overview 207
- Acl profile rules 207
- Hapter 207
- Acl profile actions 208
- Acl setup screen 208
- Chapter 36 acl 209
- Figure 112 acl setup 209
- Note at the time of writing you cannot edit the vpi and vci if you want to change them add a new adsl pvc or vdsl port with the desired settings then you can delete any unwanted adsl pvcs or vdsl ports 209
- Table 73 acl setup 209
- The following table describes the labels in this screen 209
- Ves 1624ft 55a user s guide 209
- Acl profile screen 210
- Chapter 36 acl 211
- Note the lower the number 1 17 the higher the priority the rule has 211
- Table 74 acl profile 211
- The following table describes the labels in this screen 211
- Ves 1624ft 55a user s guide 211
- Acl profile map 212
- Acl profile map screen 212
- Chapter 36 acl 212
- Figure 114 acl profile map 212
- Table 75 acl profile map 212
- The following table describes the labels in this screen 212
- Ves 1624ft 55a user s guide 212
- Downstream broadcast 213
- Downstream broadcast screen 213
- Hapter 213
- Chapter 37 downstream broadcast 214
- Table 76 downstream broadcast continued 214
- Ves 1624ft 55a user s guide 214
- Hapter 215
- Upstream broadcast 215
- Upstream broadcast screen 215
- Hapter 217
- Syslog 217
- Syslog screen 217
- Access control 219
- Access control overview 219
- Access control screen 219
- Hapter 219
- Chapter 40 access control 221
- Dslam mib 221
- Mibs let administrators collect statistics and monitor status and performance the ip dslam supports the following mibs 221
- Snmp traps 221
- Supported mibs 221
- Table 81 snmpv2 traps 221
- The ip dslam can also respond with specific data from the dslam private mibs 221
- The ip dslam can send the following snmp traps to an snmp manager when an event occurs xtuc refers to the downstream channel for traffic going from the ip dslam to the subscriber xtur refers to the upstream channel for traffic coming from the subscriber to the ip dslam 221
- Vdsl line mib rfc 3728 mib ii if mib and adsl line mib rfc 2662 snmp mib ii rfc 1215 bridge mib fdb status rfc 3728 vdsl mib 221
- Ves 1624ft 55a user s guide 221
- Chapter 40 access control 222
- Figure 120 snmp 222
- Snmp screen 222
- Table 81 snmpv2 traps continued 222
- Table 82 snmp 222
- The following table describes the labels in this screen 222
- Ves 1624ft 55a user s guide 222
- Chapter 40 access control 223
- Figure 121 service access control 223
- Service access control 223
- Service access control screen 223
- Table 82 snmp continued 223
- Table 83 service access control 223
- The following table describes the labels in this screen 223
- Ves 1624ft 55a user s guide 223
- Chapter 40 access control 224
- Figure 122 remote management secured client setup 224
- Remote management screen 224
- Secured client 224
- Table 84 remote management secured client setup 224
- The following table describes the labels in this screen 224
- Use this screen to configure the ip address ranges of trusted computers that may manage the ip dslam 224
- Ves 1624ft 55a user s guide 224
- Hapter 225
- Pppoe intermediate agent 225
- Pppoe intermediate agent tag format 225
- Pppoe intermediate agent screen 226
- Chapter 41 pppoe intermediate agent 227
- Table 90 pppoe intermediate agent 227
- The following table describes the labels in this screen 227
- Ves 1624ft 55a user s guide 227
- Hapter 229
- Mtu size 229
- Mtu size screen 229
- Hapter 231
- Oui filter 231
- The oui filter screen 231
- Chapter 43 oui filter 232
- Table 92 oui filter continued 232
- Ves 1624ft 55a user s guide 232
- Hapter 233
- N1mac screen 233
- Overview 233
- Chapter 44 n1mac 234
- Figure 127 n1mac 234
- Figure 128 n1mac 234
- N1mac status 234
- N1mac status screen 234
- Table 93 n1mac 234
- Table 94 n1mac 234
- The following table describes the labels in this screen 234
- Use this screen to check the multiple to one mac mapping table for port s 234
- Ves 1624ft 55a user s guide 234
- Chapter 44 n1mac 235
- Table 94 n1mac continued 235
- Ves 1624ft 55a user s guide 235
- Aggregation switch mode 237
- Dot3ad 237
- Dynamic link aggregation 237
- Hapter 237
- Dot3ad screen 238
- Link aggregation id 238
- Static aggregation example 238
- Chapter 45 dot3ad 239
- Dot3ad status screen 239
- Figure 130 dot3ad 239
- Figure 131 dot3ad status 239
- Status to open the screen use this screen to configure ieee 802 ad link aggregation settings which groups ethernet ports into a trunk to increase the uplink bandwidth 239
- Table 97 switch setup dot3ad 239
- The following table describes the labels in this screen 239
- Ves 1624ft 55a user s guide 239
- Chapter 45 dot3ad 240
- Note this field only displays values if you enable lacp on the ports at the both peer ends 240
- Table 98 dot3ad status 240
- The following table describes the labels in this screen 240
- Ves 1624ft 55a user s guide 240
- Hapter 241
- Mac force forwarding 241
- Overview 241
- Mac force forwarding examples 242
- You have to calculate the netmask depending on the number of ip addresses you want to include in a mac force forwarding rule 242
- Macff screen 243
- Chapter 46 mac force forwarding 244
- Figure 136 mac force forwarding 244
- Note this router or server should also be a member of the specified vlan 244
- Table 100 mac force forwarding 244
- The following table describes the labels in this screen 244
- Ves 1624ft 55a user s guide 244
- An ip address with host ids of all zeros is the ip address of the network 192 68 with a 24 bit subnet mask for example an ip address with host ids of all ones is the broadcast address for that network 192 68 55 with a 24 bit subnet mask for example 245
- As these two ip addresses cannot be used for individual hosts calculate the maximum number of possible hosts in a network as follows 245
- Chapter 46 mac force forwarding 245
- For example 192 25 is equivalent to saying 192 with subnet mask 255 55 55 28 245
- Macff arp proxy screen 245
- Macff arp proxy to open the screen use this screen to configure an expiration time for configured access router ar and application server as arp table entries see section 46 on page 243 245
- Network size 245
- Notation 245
- Since the mask is always a continuous number of ones beginning from the left followed by a continuous number of zeros for the remainder of the 32 bit mask you can simply specify the number of ones instead of writing the value of each octet this is usually specified by writing a followed by the number of bits in the mask after the address 245
- Table 101 maximum host numbers 245
- Table 102 alternative subnet mask notation 245
- The following table shows some possible subnet masks using both notations 245
- The size of the network number determines the maximum number of possible hosts you can have on your network the larger the number of network number bits the smaller the number of remaining host id bits 245
- Ves 1624ft 55a user s guide 245
- Chapter 46 mac force forwarding 246
- Figure 137 mac arp proxy 246
- Table 103 mac arp proxy 246
- The following table describes the labels in this screen 246
- Ves 1624ft 55a user s guide 246
- Management 247
- Routing protocol alarm and 247
- Routing protocol alarm and management 247
- Hapter 249
- Static routing 249
- Chapter 47 static routing 250
- Table 104 static routing continued 250
- Ves 1624ft 55a user s guide 250
- Alarm status screen 251
- Hapter 251
- Alarm descriptions 252
- Chapter 48 alarm 252
- Table 105 alarm status 252
- Table 106 alarm descriptions 252
- The following table describes the labels in this screen 252
- This table describes alarms that the system can send 252
- Ves 1624ft 55a user s guide 252
- Xtuc refers to the downstream channel for traffic going from the ip dslam to the subscriber xtur refers to the upstream channel for traffic coming from the subscriber to the ip dslam a v in the clearable column indicates that an administrator can remove the alarm you can use the cli command alarm tablelist to display all alarm information on the ip dslam 252
- Alarm history 253
- Alarm history screen 253
- Chapter 48 alarm 253
- Table 106 alarm descriptions continued 253
- This screen displays the historical alarms stored in the system 253
- Ves 1624ft 55a user s guide 253
- Alarm event setup 254
- Alarm event setup screen 254
- Chapter 48 alarm 254
- Figure 140 alarm history 254
- Table 107 alarm history 254
- The following table describes the labels in this screen 254
- This screen lists the alarms that the system can generate along with the severity levels of the alarms and where the system is to send them 254
- Ves 1624ft 55a user s guide 254
- Chapter 48 alarm 255
- Figure 141 alarm event setup 255
- Table 108 alarm event setup 255
- The following table describes the labels in this screen 255
- Ves 1624ft 55a user s guide 255
- Alarm port setup screen 256
- Alarm status then click an alarm s index number 256
- Chapter 48 alarm 256
- Edit alarm event setup screen 256
- Figure 142 alarm event setup edit 256
- Table 109 alarm event setup edit 256
- The following table describes the labels in this screen 256
- Use this screen to set the alarm severity threshold for recording alarms on an individual port s the system reports an alarm on a port if the alarm has a severity equal to or higher than the port s threshold 256
- Use this screen to specify the severity level of an alarm s and where the system is to send the alarm s 256
- Ves 1624ft 55a user s guide 256
- Alarm port setup 257
- Chapter 48 alarm 257
- Figure 143 alarm port setup 257
- Table 110 alarm port setup 257
- The following table describes the labels in this screen 257
- Ves 1624ft 55a user s guide 257
- Firmware upgrade screen 259
- Hapter 259
- Maintenance 259
- Maintenance screen 259
- Backing up a configuration file 260
- If you load an invalid configuration file it may corrupt the settings and you might have to use the console to reconfigure the system 260
- Restore configuration screen 260
- See the chapters on commands to edit the configuration text file 260
- Load factory defaults 261
- Reboot system 261
- Restoring the default configuration deletes all the current settings it is recommended to back up the configuration file before restoring the default configuration 261
- You can change the dat file to a txt file and still upload it back to the ip dslam 261
- Command line ftp 262
- Diagnostics 263
- Diagnostics screen 263
- Hapter 263
- Chapter 50 diagnostics 264
- Note the port must have an open loop there cannot be a dsl device phone fax machine or other device connected to the subscriber s end of the telephone line 264
- Note wait at least one minute after using set ldm port before using get ldm data 264
- Table 111 diagnostics 264
- The following table describes the labels in this screen 264
- Ves 1624ft 55a user s guide 264
- Chapter 50 diagnostics 265
- Log format 265
- Log message 265
- Log messages 265
- Table 112 log format 265
- Table 113 log messages 265
- The common format of the system logs is 265
- The following table lists and describes the system log messages 265
- Ves 1624ft 55a user s guide 265
- Chapter 50 diagnostics 266
- Ldm test parameters 266
- Table 113 log messages continued 266
- Table 114 ldm test parameters 266
- The following table lists the line diagnostics test parameters that display see the itu t s g 92 for more information 266
- Ves 1624ft 55a user s guide 266
- Chapter 50 diagnostics 267
- Table 114 ldm test parameters continued 267
- Table 115 tonediag parameters 267
- The following table lists the tone diagnostic parameters that display see the itu t s g 92 for more information 267
- Tonediag parameters 267
- Ves 1624ft 55a user s guide 267
- Chapter 50 diagnostics 268
- Table 115 tonediag parameters continued 268
- Ves 1624ft 55a user s guide 268
- Hapter 269
- Introduction to mac table 269
- Mac table 269
- Chapter 51 mac table 270
- Figure 152 mac table 270
- If the device has not already learned the port for this mac address then the frame is flooded to all ports too much port flooding leads to network congestion if the device has already learned the port for this mac address but the destination port is the same as the port it came in on then it filters the frame 270
- Mac table 270
- Mac table screen 270
- Table 116 mac table 270
- The following table describes the labels in this screen 270
- Ves 1624ft 55a user s guide 270
- Arp table 271
- Arp table screen 271
- Hapter 271
- How arp works 271
- Introduction to arp table 271
- Chapter 52 arp table 272
- Figure 153 arp table 272
- Table 117 arp table 272
- The following table describes the labels in this screen 272
- Ves 1624ft 55a user s guide 272
- Troubleshooting and specifications 273
- Hapter 275
- The alm led is on 275
- The sys or pwr led does not turn on 275
- Troubleshooting 275
- 100 1000 ethernet port data transmission 276
- 100 1000 leds do not turn on 276
- A 100 1000 ethernet port s leds do not turn on 276
- Chapter 53 troubleshooting 276
- Sfp lnk leds do not turn on 276
- Table 120 sfp lnk led troubleshooting 276
- Table 121 100 1000 led troubleshooting 276
- Table 122 troubleshooting data transmission 276
- The ethernet port s led is on but data cannot be transmitted 276
- The leds for one of the sfp slots do not turn on 276
- Ves 1624ft 55a user s guide 276
- Chapter 53 troubleshooting 277
- Dsl data transmission 277
- Note it is not recommended to use daisychain mode in a loop topology 277
- Table 122 troubleshooting data transmission continued 277
- Table 123 dsl data transmission troubleshooting 277
- Table 124 vdsl voice troubleshooting 277
- The dsl link is up but data cannot be transmitted 277
- The ip dslam has internal pots plain old telephone service splitters that allow the telephone wiring used for vdsl connections to also simultaneously carry normal voice conversations 277
- There is no voice on an vdsl connection 277
- Ves 1624ft 55a user s guide 277
- Chapter 53 troubleshooting 278
- Configured settings 278
- Data rate 278
- If you forget your password you will need to use the console port to reload the factory default configuration file see section 53 5 on page 280 278
- Local server 278
- Password 278
- Table 125 troubleshooting a local server 278
- Table 126 troubleshooting the sync rate 278
- Table 127 troubleshooting the ip dslam s configured settings 278
- The computer behind a dsl modem or router cannot access a local server connected to the ip dslam 278
- The configured settings do not take effect 278
- The sync rate is not the same as the configured rate 278
- Ves 1624ft 55a user s guide 278
- Any of the following could also lock you and others out from using in band management managing through the data ports 279
- Be careful not to lock yourself and others out of the system 279
- Deleting the management vlan default is vlan 1 2 incorrectly configuring the cpu vlan 3 incorrectly configuring the access control settings 4 disabling all ports 279
- I cannot telnet into the ip dslam 279
- If you lock yourself and others out of the system you can try using the console port to reconfigure the system see section 53 5 on page 280 279
- System lockout 279
- Telnet 279
- The snmp manager server cannot get information from the ip dslam 279
- Resetting the defaults 280
- Resetting the defaults via command 280
- Uploading the default configuration file 281
- Uploading the factory default configuration file erases the ip dslam s entire configuration 281
- Recovering the firmware 282
- This procedure is for emergency situations only 282
- Hapter 283
- Physical specifications 283
- Product specifications 283
- Changing the ip dslam s fuses requires partial disassembly of the device only a qualified technician should perform this process 284
- Chapter 54 product specifications 285
- Default settings 285
- Number of telnet sessions 5 number of vlans 1024 number of dsl profiles 128 number of atm profiles 96 number of igmp filter profiles 128 number of igmp proxy static query vlans 16 number of dsl alarm profiles 8 number of dot1x profiles 64 number of dhcp relay servers 32 number of ip routes 128 number of static multicast addresses 32 number of multicast group ranges per mvlan 16 number of multicast bandwidth control groups 96 number of igmp groups 512 groups number of learned mac addresses up to 4k entries number of rpvc gateway ip addresses 96 number of rpvc routing entries 96 number of acl profiles 128 number of pppoe intermediate agents 48 number of vlan isolations 16 number of mac force forwarding entries 64 285
- Table 132 default settings 285
- This section lists the default configuration of the ip dslam 285
- Ves 1624ft 55a user s guide 285
- Chapter 54 product specifications 286
- Table 132 default settings continued 286
- Ves 1624ft 55a user s guide 286
- Connect to the ip dslam s co 1 24 and user 1 24 ports using cables that have telco 50 connectors with the following pin assignments 287
- Console cable pin assignments 287
- Hardware telco 50 connector pin assignments 287
- Pin assignments 287
- The following diagrams and chart show the pin assignments of the console cable 287
- Alarm connector pin assignments 288
- Alarm input is only for dry contact without any power open or short circuit is recommended 288
- The following diagram shows the alarm connector pin layout 288
- Appendices and 289
- Appendices and index 289
- Changing a fuse 291
- Ppendix 291
- Certifications 293
- Copyright 293
- Legal information 293
- Ppendix 293
- Zyxel limited warranty 294
- Customer support 297
- Ppendix 297
- Numbers 303
- Ves 1624ft 55a user s guide 303
- Ves 1624ft 55a user s guide 304
- Ves 1624ft 55a user s guide 305
- Ves 1624ft 55a user s guide 306
- Ves 1624ft 55a user s guide 307
- Ves 1624ft 55a user s guide 308
- Ves 1624ft 55a user s guide 309
- Ves 1624ft 55a user s guide 310
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