Westermo RedFox Series - Manual (Page 321)

Westermo OS Management Guide
Version 4.17.0-0
15.1 Overview
Feature Web CLI General Description
FRNT Ring Coupling X X Section 15.1.1
Enable X X
Hello Interval X X Section 15.1.1.2
Define Uplink(s) X X Sections 15.1.1 and 15.1.3
Uplink Path-Cost X X Section 15.1.3
Uplink Priority X X -”-
Ring Coupling Status X X
Multi-Link Dual-Homing X X Section 15.1.2
Enable X X
Synchronized X Section 15.1.2.1
Multiple Instances X Section 15.1.2.2
Define Uplink(s) X X Sections 15.1.2 and 15.1.3
Uplink Path-Cost X X Section 15.1.3
Uplink Priority X X -”-
Dual-Homing Status X X
15.1.1 FRNT Ring Coupling
FRNT Ring Coupling (RiCo) enables redundant bridging between two or more
FRNT rings.
Fig. 15.1a shows a simple example where two RiCo nodes in an FRNT
sub-ring are connected with one uplink each to the FRNT super-ring. A super-ring
is a ring without RiCo nodes. It is possible to use more than two RiCo nodes in
the sub-ring, and each RiCo node can have more than one uplink, as shown in
fig. 15.1b .
Only one of the uplinks is forwarding data – the active uplink, ”solid” in fig. 15.1 ,
while the other uplink(s) are hot-standby backups, ”dashed” in fig. 15.1 . To pre-
vent traffic to flow over backup uplinks the RiCo nodes put all backup uplinks in
BLOCKING state.
In the CLI example below the leftmost Ring Coupling node in fig. 15.1a is a WeOS
unit configured as an FRNT member switch (see chapter 14 ) with ring-ports ’1’
➞ 2015 Westermo Teleindustri AB 321