Phoenix Contact FL NAT SMN 8TX, Руководство пользователя, Страница: 77 / 102

(Rapid) Spanning Tree
7966_en_04 PHOENIX CONTACT
5-11
When using RSTP fast ring detection, please note the following:
– For RSTP fast ring detection, do not use devices that do not support this function.
– Enable RSTP fast ring detection on all devices.
– All data paths must be in full duplex mode.
5.1.2 Connection failure - Example
The following diagram illustrates an RSTP ring with six switches, where switch 1 is the root.
The ring extends over port 1 and port 2 for each switch. On switch 4, the loop is broken by
a blocking port.
If a cable interrupt occurs at the point indicated by the star, this produces the following
entries on the “RSTP Fast Ring Detection” web page:
Switch 3 - Failed on Port A
Switch 4 - Broken
In addition, switch 3 would also generate the “flWorkLinkFailure” trap, as long as the
sending of traps is not disabled.
Figure 5-8 Connection failure with RSTP ring detection
FL SWITCH MCS 16TX
Ord. No. 28 32 70 0
00.A0.45.1B.D2.1D
MAC
Address
1 3 5 7
2 4 6 8
9 11 13 15
10 12 14 16
9 16 10 11 12 13 14 15 1 8 2 3 4 5 6 7
MODE
ACT 100 FD
US1 US2 FAIL
X19
V.24 X17
US1 GND US2 GND
X18
R1 R2
LNK MODE
1
2
X1
LNK MODE
1
2
X2
LNK MODE
1
2
X3
LNK MODE
1
2
X4
US1
US2
Fail
Reset
MODE
ACT 100 FD
FL SWITCH MM HS
Ord. No. 28 32 32 6
US2 US1 GND GND R1 R2
00A0451BDD MAC
Address
V.24
LNK MODE
1
2
X1
LNK MODE
1
2
X2
LNK MODE
1
2
X3
LNK MODE
1
2
X4
US1
US2
Fail
Reset
MODE
ACT 100 FD
FL SWITCH MM HS
Ord. No. 28 32 32 6
US2 US1 GND GND R1 R2
00A0451BDD
MAC
Address
V.24
Root
74710017
2
2
2
2
2
2
1
1
1
1
1
1
2
3
4
5
6
00.A0.45.06.04.02
MAC
Address
1 2 3 4
LINK
Mode
US2 FAIL
X9
US1 GND US2 GND
X10
R1 R2
FL SWITCH SMSC 8GT
Ord. No. 2891123
US1
X11
MEM
MODE
SPD FD ACT
5 6 7 8
X12
V.24
1 3 5 7
2 4 6 8
00.A0.45.06.04.02
MAC
Address
1 2 3 4
LINK
Mode
US2 FAIL
X9
US1 GND US2 GND
X10
R1 R2
FL SWITCH SMSC 8GT
Ord. No. 2891123
US1
X11
MEM
MODE
SPD FD ACT
5 6 7 8
X12
V.24
1 3 5 7
2 4 6 8
00.A0.45.06.04.02
MAC
Address
1 2 3 4
LINK
Mode
US2 FAIL
X9
US1 GND US2 GND
X10
R1 R2
FL SWITCH SMSC 8GT
Ord. No. 2891123
US1
X11
MEM
MODE
SPD FD ACT
5 6 7 8
X12
V.24
1 3 5 7
2 4 6 8
1