Qtech QSW-2800v2 [209/230] Configure resilient link group function

Qtech QSW-2800v2 [209/230] Configure resilient link group function
Chapter8 Reliability Configuration
8-27
RLINK Characteristic supported of QSW-2800
Link redundancy
It provides redundancy and backup function of link for double uplink network
environment. RLINK realizes that one uplink is transmitting and the other is
blocked in order to prevent loop broadcast storm.
Fast switching
After the main link is fault, flow will switch to backup link fast in millisecond to
guarantee normal data transmitting and to avoid data loss.
Flexible networking
RLINK protocol provides single point uplink mode and double points uplink mode.
User can choose which mode to use according to application scene.
Load sharing
RLINK protocol realizes load sharing by separate flow protection based on VLAN.
Different VLAN flow transmits along different paths.
Uplink monitoring
MLINK linkage function of RLINK is used to monitor uplink change to synchronize
downlink state to reduce flow loss.
Simple configuration and low cost
This solution is designed for double uplink network to guarantee performance and
simple configuration.
8.3.2 Configure Resilient Link Group Function
Background Information
When user is using RLINK, please guarantee that interface configured RLINK is not enabled MSTP.
If interface is enabled STP, G8031, G8032, RER, ALB, ESR and etc, the interface cannot be
enabled RLINK.
The two uplinks must use BFD or MLINK to monitor the whole link, or it makes the master and slave
interface not to find the real fault link. If this condition happens, it will result loop problem because
master and slave interface are both transmitted state after links recovering.

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