PLANET Technology Corp.

GRT-101/401/402 User’s Manual

LLC header of the packet. The VC based multiplexing method carries each protocol on a separate ATM virtual circuit. This method is sometimes used in private networks, in which PVC creation is very economical.

Note: Each VC is expressed as WAN x, where x is a number between 1 and 8. GRT series comes pre-configured with one ATM VC (WAN 1 with VPI/VCI = 0/32) already established. The WAN 1 port is ready to send and receive network traffic via IPoA protocol with LLC encapsulation. You may need to modify the pre-configured ATM VC when communicating across your local ISP network.

For bridging mode operation, you should select Ethernet over ATM (RFC 1483 bridged Ethernet) as the ATM protocol. For routing mode operation, GRT series supports Ethernet over ATM (RFC 1483 bridged Ethernet), IP over ATM (RFC 1483 routed IP/RFC 1577), PPP over ATM (RFC 2364), and PPP over Ethernet (RFC 2516). The following example enables the ATM VC WAN 3 with protocol of Ethernet over ATM:

admin# setup wan 3 protocol Ethernet

where the selectable parameters corresponding to the above ATM protocols are “Ethernet”, “IPoA”, “PPPoA”, and “PPPoE”. To disable the pre-configured ATM VC WAN 1, enter:

admin# setup wan 1 protocol Disable

The valid ranges for the VPI is from 0 to 255. For the VCI, it is between 0 and 65535.

The following example set the VPI/VCI = 0/135 for ATM VC WAN 3

admin# setup wan 3 vpi_vci 0 135

To change the encapsulation from default LLC to VC-Mux for ATM VC WAN 3

admin# setup wan 3 encap VC-Mux

To review the new configuration you have changed for WAN 3, type:

admin# setup wan 3 list

 

 

WAN Interface Parameters

 

 

Int.

Link

IP Address/

Netmask VPI/

VCI Encap. QoS PCR

---- -------- ----------------------------- --------- ------ --- ----

 

WAN 1

Disable

 

 

 

WAN 2

Disable

 

 

 

WAN 3

Ethernet

192.168.3.1/

255.255.255.0 0/

135 VC-Mux UBR 2400

WAN 4

Disable

 

 

 

WAN 5

Disable

 

 

 

 

 

 

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