User Guide | VersaLink™ Gateway (Model 327W) | |
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| VC 1 Configuration |
| VPI | This setting allows you to change your VPI (Virtual Path Indicator) value for a |
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| particular VC, which is defined by your Service Provider. |
| VCI | This setting allows you to change your VCI (Virtual Channel Indicator) value for a |
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| particular VC, which is defined by your Service Provider. |
| PCR | Factory Default = 100% |
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| Peak Cell Rate |
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| virtual circuit, specified in cells per second and defined by the interval between the |
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| transmission of the last bit of one cell and the first bit of the next. |
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| This value is a percentage of the current data rate. |
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| 100 allows this VC to use 100% of the available bandwidth. |
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| 80 allows this VC to use 80% of the available bandwidth. |
| QoS | Quality of Service, which is determined by your Service Provider. |
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| CBR = Constant Bit Rate |
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| UBR = Unspecified Bit Rate |
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| VBR = Variable Bit Rate |
| Protocol | The Protocol for each VC, which is specified by your Service Provider. |
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| PPPoA = Point to Point Protocol over ATM (Asynchronous Transfer Mode) |
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| PPPoE = Point to Point Protocol over Ethernet |
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| Bridge = Bridge Protocol |
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| Classical IPoA = Internet Protocol over ATM (Asynchronous Transfer Mode). This |
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| is an ATM encapsulation of the IP protocol. |
| Status | The protocol status. |
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| VC 1 Bridge Settings |
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| Bridge = A bridge is a layer 2 device that connects two segments of the same LAN |
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| that use the same protocol such as Ethernet. The modem does not have a WAN IP |
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| address in this mode. The client PC will typically get an IP address from a DHCP |
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| server in the network or the IP address can be assigned to the client PC statically. |
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| Routed Bridge = Routed Bridged Encapsulation (RBE) is the process by which a |
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| bridged segment is terminated on a routed interface. Specifically, VersaLink is |
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| routing on an IEEE 802.3 or Ethernet header carried over RFC 1483 bridged ATM. |
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| RBE was developed to address the known RFC1483 bridging issues, including |
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| broadcast storms and security. The modem will get a WAN IP address through |
| Mode | DHCP or can be assigned statically. NAT will use the global address assigned to the |
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| modem. |
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| Proxy Bridge = Proxy Bridge is the process in which the modem acts as a proxy |
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| ARP agent for a local public subnet. The modem will be assigned an IP address |
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| from within that public subnet. The modem will direct all traffic to a VersaLink, |
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| which is configured statically. VersaLink address must not reside within |
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| VersaLink’s assigned public subnet. All traffic will be sent via VersaLink’s MAC |
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| address. The LAN may also have a private NAT'ed network. NAT will use the |
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| global address assigned to the modem. |
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| VLAN = Assigns VLAN tags to individual data ports on the modem. |
98 | October 2006 |