Black Box LIE1014A - Page 59

59
1.8 7 7. 87 7. 2 2 6 9 BLACKBOX.COM
NEED HELP?
LEAVE THE TECH TO US
LIVE 24/7
TECHNICAL
SUPPORT
1.8 77.87 7.2269
CHAPTER 6: RING VERSION2 APPLICATION
Dual-Homing
When the role is dual-homing, one ring port is the primary port and another is the backup port. This backup port is a redundant port.
In normal state, it is blocked.
Head
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
8
P1
P2ALM
6
7
8
9 10
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
5
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
2
4
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1
3
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
Ring 1
Ring 3
Primary
Master
Master
FIGURE 6-4. DUAL HOMING
Group 3 - This supports configuration of the chain and balancing-chain.
Chain- The switch can be head, tail or member.
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
1 2
3
P1
P2ALM
4
5 6
7
8
9
11
10
12
13
14
Head
Ring 1
Chain 1
Tail
FIGURE 6-5. CHAIN CONFIGURATION
 When the role is chain/head, one ring port is the head port and another is a member port. Both ring ports are forwarded in normal
state.
 When the role is chain/tail, one ring port is the tail port and another is a member port. The tail port is a redundant port. It is blocked
in normal state.
 When the role is chain/member, both ring ports are member ports. Both ring ports are forwarded in normal state.