OptiX OSN 7500
Technical Manual - System Description 6 Data Features
Huawei Technologies Proprietary
6-3
Feature
Board
EFS4 EFS0 EGS2 EGT2 EFT8
Ethernet performance
monitoring
Supported Supported
6.1.2 Application
The OptiX OSN 7500 integrates the access of Ethernet services on the SDH
transmission platform, so it can transmit both the voice service and data service.
1. EPL Service
EPL implements the point-to-point transparent transmission of Ethernet service. As
shown in Figure 6-1, the Ethernet services of different NEs are transmitted to the
destination node through their respective VCTRUNKs. The Ethernet service is
provided with a perfect SDH self-healing ring (SHR) protection scheme, and its
reliable transmission is thus guaranteed.
SHR
1
3
4
5
Traffic flow
n
NE 4
NE 1
NE 2
NE 3
2
Figure 6-1 The EPL service
2. EPL Service with VLAN Capability
EPL services are isolated through VLAN tags during bandwidth sharing. As shown in
Figure 6-2, flow classification is performed for the Ethernet service according to the
port and VLAN ID to distinguish different VLANs of Company A and B. Up to eight
IEEE802.1P-compliant priorities can be set according to the flow classification result.
For security purpose, the OptiX OSN 7500 isolates services of different users by
VLAN. In the figure below, VLAN 1 of Company A shares a VCTRUNK with VLAN 1 1
of Company B, VLAN 2 of Company A shares a VCTRUNK with VLAN 12 of Company
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