G.8032 - Cisco ASR 903 Manual

Layer 2 Solution
Maximum address limit: 256000
GigabitEthernet0/1/0 service instance 11
Port-channel1 service instance 2
Nile Mac Address Entries
BD
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40 c8f9.f98d.103f
40 c8f9.f98d.503f

G.8032

The G.8032 Ethernet Ring Protection Switching implements protection switching mechanisms for Ethernet layer
ring topologies. This feature uses the G.8032 Ethernet Ring Protection (ERP) protocol, defined in ITU-T G.8032,
to provide protection for Ethernet traffic in a ring topology, while ensuring that no loops are within the ring at the
Ethernet layer. The loops are prevented by blocking traffic on either a predetermined link or a failed link.
ASR903-R1
ASR903-R2
For G.8032, CFM can be configured under either an EFP or main Ethernet interface for failure detection.
Following is a configuration example for CFM under EFP scenario.
OL-30526-01
mac addr type
DYNAMIC
DYNAMIC
(port 0)
Gi 0/2/1
Gi 0/2/0
(port 1)
Gi 0/2/0
(port 0)
Gi 0/2/1
(port 1)
ports
Po0/0/1.tefp2
Gi0/1/0.Efp11
Figure 5. G.8032
(port 1)
Gi 0/2/1
Gi 0/2/1
(port 0)
Cisco ASR 903 Router Design and Deployment Guide▄
G.8032 ▀
ASR903-R4
Gi 0/2/0
(port 0)
Gi 0/2/0
(port 1)
ASR903-R3
21