Comtech EF Data turboIP-G2 - Manual (Page 168)

turboIP-G2 Performance Enhancement Proxy Revision 2
Appendix A CD-TURBOIP-G2
A–4
A.4 Hub-Spoke Configuration
Figure A-3. Hub-Spoke Configuration
With the Hub-Spoke configuration example shown in Figure A-3, this configuration differs from
the Point-to-Multipoint configuration in that there are separate satellite links between the Hub and
each Remote site, but a single turboIP-G2 is still used at the Hub. Also note that there is no
turboIP-G2 at Remote Site 3, this is to illustrate that turboIP-G2s can be deployed at Remote
Sites at a future date and still be compatible with the Hub. Sites without a turboIP-G2 would only
get partial benefit for turboIP-G2 TCP acceleration.
The following table defines the configuration settings for each turboIP-G2:
Configuration Parameter Hub turboIP-G2 Remote turboIP-G2 (1 & 2)
WAN Transmission Rate 45 Mbps (equal to the total TX data
rates of Hub modems, 25 + 13 + 8
Mbps)
1 Mbps (equal to the TX data rate of
Remote modem.
Congestion Control Rate Pacing Rate Pacing
Selective Acceleration Selective Acceleration Rules are
required to limit the bandwidth for all
of the traffic destined for a particular
Remote site. The BW limit would be
equal to the TX data rate of Hub
modem that is linked to the particular
site 25 Mbps for Site 1, 13 Mbps for
Site 2, and 8 Mbps for Site 3.
No Selective Acceleration Rules are
required. Rules could be added to
prioritize or set BW limits on types of
traffic.
Route Table No Route Table entries are required. Routes could be added to allow remote
access from outside of LAN subnet.