PTP 800 Series User Guide
Planning 1+ 1 Hot St andby links
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Network configurations for 1+1
1+1 Hot Standby link management
In a 1+1 Hot Standby Link, each CMU is managed separately and must be assigned its
own IP address.
Choosing Ethernet switches
The Ethernet switch must react to a brief disconnection of an Ethernet port by flushing its
forwarding data base (see
). This allows the Ethernet
switch to learn the new bridging path following a protection switch. When choosing an
Ethernet switch, ensure that this feature is supported.
Many inexpensive unmanaged switches fail to meet this requirement.
The switch must support the required number of ports for 1+1 Hot Standby operation.
This is dependent on the following factors:
•
Whether copper or fiber is the physical connection medium or whether the Fiber-Y
option is required.
•
Whether in-band or out-of-band management mode is required.
The details of these requirements are in the following sections.
1+1 Hot Standby link with out-of-band management
Out-of-band management provides two separate networks, one for customer data and one
for managing the network. Please refer to
on page
details on out-of-band Management.
When Out of Band management is selected, the Ethernet switch must provide two ports in
order to carry the management traffic to both CMUs. As the protection interface shares
the same physical socket as the management port, an Out of Band Protection Splitter is
required to route the management traffic from the two CMUs to the Ethernet switch.
For the customer data, there are two methods of connection, either redundant data ports
or Fiber-Y.
For redundant data ports, the Ethernet switch must provide two ports for carrying
customer data traffic to both CMUs. The choice of physical medium can be copper or fiber
and this can be selected independently for each CMU. This arrangement is shown in
Summary of Contents for PTP 800 Series
Page 1: ...Cambium PTP 800 Series User Guide System Release 800 05 02 ...
Page 40: ...Licensing requirements About This User Guide 10 phn 2513_004v000 Oct 2012 ...
Page 232: ...Limit of liability Chapter 3 Legal information 3 22 phn 2513_004v000 Oct 2012 ...
Page 322: ...Radiation hazard assessm ent Chapter 4 Reference information 4 90 phn 2513_004v000 Oct 2012 ...
Page 428: ...Replacing IRFU components Chapter 5 Installation 5 106 phn 2513_004v000 Oct 2012 ...
Page 630: ...Using recovery mode Chapter 7 Operation 7 78 phn 2513_004v000 Oct 2012 ...
