IES-1000 User’s Guide
12-2 G.SHDSL Module Port Setup
You can n-wire bundle multiple groups of ports on a single IES-1000 (or even within a single SAM1008 module)
as long as they do not overlap.
12.5 Port Bonding
The port bonding feature allows you to send IP packets over two to eight G.SHDSL connections as a single
connection. Since n-wire mode occurs at the physical level and port bonding occurs at the software level, you can
combine n-wire bundled groups as well as individual ports. This can give increased bandwidth in LAN-to-LAN
applications between IES-1000s.
You can easily select G.SHDSL ports or n-wire bundled groups to bond together. The IES-1000 checks the
transfer rates of the individual G.SHDSL ports when they connect. The IES-1000 retrains any of the bonded ports
that have a lower speed up to three times in an attempt to get them to reach the higher speed. If a port does not
reach the higher speed (or at least within a 640 Kbps tolerance of the higher speed) by the third attempt, that port
is dropped.
You can bond multiple groups of ports on a single IES-1000 (or even within a single SAM1008 module) as long
as they do not overlap.
12.6 N-wire Mode with Port Bonding Example
The following figure shows a SAM1008’s ports one to four and five to eight physically bundled into 8-wire
groups 1 and 2 (respectively). These two 8-wire bundled groups are then bonded into a single logical connection
(3 in the figure).
Figure 12-1 N-wire Mode with Port Bonding Example
With eight ports bundled together, use multiple TCP connections in order to reach the higher speeds. This is due to
the limiting characteristics of a single TCP session. For example, if you need to make a large FTP file transfer, it
would be faster to use two FTP clients.
When using multiple G.SHDSL ports to connect two SAM1008s, it is recommended that you
bond all of the G.SHDSL ports to avoid network loops (and improve throughput).
