beautypg.com

5 dynamic bandwidth configuration – Comtech EF Data turboIP-45 User Manual

Page 101

background image

turboIP-45

Performance Enhancement Proxy

Revision 0

Sample Configurations

CD/TURBOIP45.IOM

7–5

7.5 Dynamic

Bandwidth

Configuration

In this configuration, there are turboIP-45s in place in a simple Point-to-Point link, but there is more
than a single path available between the Hub and the Remote Sites. Path A is a fiber optic link, Path B is
a terrestrial T1 link, and Path C is a 1 Mbps satellite link. Routers are used at both sites to dynamically
select the best path available. The turboIP-45s are placed just before the router so that all traffic passes
through the turboIP-45s regardless of the path used. In this dynamic bandwidth environment, the
turboIP-45s need to set to Per-Connection Congestion Control to optimize the TCP acceleration for
whichever path is used.

The following table defines the configuration settings for each turboIP-45.

Configuration Parameter

Hub turboIP-45

Remote turboIP-45 (1 & 2)

WAN Transmission Rate

45 Mbps (set to the maximum
rate)

45 Mbps (set to the maximum
rate)

Congestion Control

Per-Connection Per-Connection

Selective Acceleration

No Selective Acceleration Rules are required. Rules could be added
to prioritize or set BW limits on any type of traffic.

Route Table

No Route Table entries are required. Routes could be added to allow
remote access from outside of LAN subnet.

1

M

b

p

s

1

M

b

p

s

Hub Site

1

M

b

p

s

1

M

b

p

s

Internet

WAN

LAN

Remote Site

WAN

LAN

Fiber Optic

Fiber optic transmitter

Fiber optic transmitter

T1 Terrestrial

Path C

Path B

Path A