Single Ring, Dual Domain Network - Allied Telesis AT-8600 Release Note

Ethernet Protection Switching Ring (EPSR)

Single Ring, Dual Domain Network

This example shows a slightly more complex EPSR configuration where two
EPSR domains share the same physical ring. This configuration enables two
sets of users to run totally separate layer two networks. Better load distribution
around the ring can be achieved by configuring different nodes to be the
master for each ring.
Figure 1-5: EPSR Single Ring Network, Two Domain Network.
Port 1
Transit Node
Ring_A
Node 2
Port 2
Control VLAN (control_ring) Ring_A
Date VLAN (data_ring) Ring_A
Example commands to configure the single ring, dual domain network are
shown in Figure 1-6 on page
page 1-12.
Port 2 Port 1
Master Node
Secondary Primary
Ring_A
Ring_A Ring_A
Node 1
Transit Node
Port 3 Port 4
Ring_B
Port 4
Transit Node
EPSR Ring
Ring_B
Port 3
Port 4 Port 3
Secondary Primary
Ring_B Master Node Ring_B
Ring_B
Node 3
Transit Node
Port 1 Port 2
Ring_A
Control VLAN (control_ring) Ring_B
Date VLAN (data_ring) Ring_B
1-10, Figure 1-7 on page
Port 2
Port 3
Transit Node 3
Transit Node 1
Ring_B
Ring_A
Node 4
Port 4
Port 1
1-11, and Figure 1-8 on
9
EPSR 4.eps