Esrp; Zess; Figure 7-3 Zesr Networking Application - Zte ZXR10 5900E Product Description

7.1.3

ESRP

Figure 7-3 ZESR networking application

ESRP （Ethernet Smart Ring Protocol） is based on ITU G.8032 protocol.It checks whether
the loop is connected to make sure that there is only one logically connected path
between any two points on the ring. It re-set port status (block or forward) based on loop
changes (connected-blocked; blocked-connected) to make logic path switch quickly.
Show as figure above, to enhance the network reliability, ESRP is deployed in the middle
of access/aggregation layer. When a device on the ring fails, forwarding will not be
impacted. The secondary port will be unblocked to implement reverse data forwarding. At
the same time MAC table item is notified to get updated to guarantee non-interrupted
services.
7.1.4

ZESS

Protecting the uplink links of access/aggregation layer device is a problem that users
keep focusing on. Traditional technologies can only implement dual uplink links
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