6-4CHAPTER 6: MANUAL SETUP

Currently, the SVC capability is disabled in the OfficeConnect Remote 812.

ATM Category of Service parameters specify characteristics (sometimes called traffic shaping parameters) for data transmitted from the OfficeConnect Remote 812 to the remote site. They have no effect on data transmitted from the remote site to the OfficeConnect Remote 812.

The ATM VC information and Category of Service parameters are entered into the profile using the set vc <vc name> atm command. For PVCs, you must enter VPI and VCI information for each profile.

set vc name <vc name> atm vci <vci value> vpi <vpi value>

You should have been provided with Category Of Service parameters.

UBR - Unspecified Bit Rate; No limit has been specified for the upstream data flow.

CBR - Constant Bit Rate; A constant rate has been specified for the upstream data flow.

The cell rate transmission parameters are used to specify upstream transmission rates for the particular Category of Service.

PCR - the Peak Cell Rate is the maximum number of cells/second transmitted over this connection. The Peak Cell Rate is optional for UBR and required for VBR and CBR.

SCR - the Sustainable Cell Rate, in cells/second. This is the maximum average rate. The SCR is required for VBR.

BT - the Burst Tolerance or Maximum Burst Size, in cell/second. The is the maximum number of cells that can be sent at the peak rate. The BT is required for VBR.

To configure the profile for UBR, use:

set vc <vc name> atm category_of_service unspecifed pcr <cell rate >

To configure the profile for VBR:

set vc <vc name> atm category_of_service variable pcr <cell rate> scr < cell ￿rate > bt < cell rate >

To configure the profile for CBR:

set vc <vc name> atm category_of_service constant pcr < cell rate >

where the pcr parameter is used for the constant bit rate that is desired instead of as the peak cell rate.

If no traffic shaping parameters have been provided you should choose UBR with a PCR value of 0. The OfficeConnect Remote 812 will attempt to use all of the upstream bandwidth when transmitting data to the remote site.

IP Routing

The OfficeConnect Remote 812 can be configured as an IP Router to forward packets between the local LAN interface and one or more Remote Sites.

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3Com 812 manual IP Routing, To configure the profile for VBR, To configure the profile for CBR