4-2
RF-7800W
DEPLOYMENT SCENARIOS
4.2.2 SPTP
Simple Point to Point (SPTP) supports one SS at a time per SC. See Figure 4-2. Both radios must operate on the
same Frequency and Channel Width. While SPMP can be used with one SS, SPTP is optimized to operate with only
one SS and therefore has slightly different behavior.
4.3 ON-THE-MOVE
While the RF-7800W radio can operate On-the-Move with SPTP and SPMP, two mutually exclusive features
supported by SPMP (Multi-Hop and Roaming) provide better performance.
4.3.1 Multi-Hop
Multi-Hop allows SS to communicate directly with other SS in certain situations in order to maintain connectivity.
Refer to Paragraph 3.8.10. All radios must operate on the same Frequency and Channel Width. All SS and the SC
must be configured to use the same Link Template.
See Figure 4-3, the panels of the figure are described below:
Panel 1 - Multiple SS are linked directly to the SC.
Panel 2 - SS N relays through SS 2.
Panel 3 - SS N and SS 1 relay through SS 2.
Panel 4 - SS N relays through SS 1 and SS 1 relays through SS 2.
Panel 5 - SS 1 operates as a Failover SC, since the original SC is no longer accessible. When the original
SC becomes accessible again, the SS not acting as Failover SC would link to the SC and eventually the
Failover SC would revert to being an SS.
4.3.2 Roaming
Roaming allows SS to move between SC without losing network connectivity. Refer to Paragraph 3.8.4.3. All SC
must be connected to the same network via their Ethernet ports. SC which can see each other must be on different
Frequencies and may be on different Channel Widths. All SS and SC must be configured to use the same Link
Template.
Figure 4-2. SPTP Deployment
SPTP SC
FREQ: A
CH WID: X
SPTP SS
FREQ: A
CH WID: X
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