Figure 12: Pbb Fate-Independent Ethernet Tunnels; Figure 13: Pbb Fate Sharing Ethernet Tunnels - Alcatel-Lucent 7750 SR Manual

One of the advantages of access redundancy using Ethernet APS is that because it operates at the
VLAN level protection mechanisms can be varied between services supported on the physical
port. For example, it is possible to provide a protected service for "Premium" customers and also
provide non-protected services for "Standard" users on the same physical port.
7750 SR OS Services Guide
1/1/1
100.10
100.11
200.*
100.10
100.11
2/1/1
MEP Working

Figure 12: PBB Fate-Independent Ethernet Tunnels

1/1/1
2
500.20
500.21
500.22
2
500.20
500.21
500.22
600.*
2/1/1
MEP Working

Figure 13: PBB Fate Sharing Ethernet Tunnels

Service 1
Eth-
100 .10
Tunnel
100.10
10
Service 2
200 .*
Service 3
Eth-
Tunnel
100.11
100 .11
20
G.8031 Eth-Tunnel
Protect
Service 1
500 .20
3
500 .20
Service 2
Eth-
Tunnel
500.21
3
500.21
30
Service 3
500.22
500.22
Service 4
600.*
G.8031 Eth-Tunnel
Protect
Services
Page 57