SW3
GIGABIT/FAST ETHERNET SWITCH TYPE SW3 (DIN)
9/122
USER GUIDE - M0SW3D1905Iv04 - V04 May 2019
❖
Q-in-Q operation.
The SW3 includes two functions that provide Q-in-Q operation (double-tagged). In this
operation mode, the frames include the original tag (C-TAG), either generated by the
client equipment or assigned by the switch itself at the moment is received, and a
second tag, the tag of the provider (S-TAG), which will be the tag used in the network of
the service provider.
The 802.1Q tunnels are a useful tool to reuse the identification VID values of the VLAN,
or for transiting data over third-party networks.
FIGURE 4
Q-in-Q operation
❖
Advanced RSTP implementation.
The SW3 not only complies with the STP and RSTP protocols for resolving loops in the
network and operation in rings, but it also exceeds the recovery times obtained through
said protocols. Thus, the SW3 guarantees recovery times lower than 4 ms per link via
the RSTP standard in case of failure.
❖
Critical services and security.
The different services have their level of importance. For example, sending orders to
open a switch has priority over the traffic from a telephone connection. The SW3 has
Quality of Service (QoS), which identifies critical services, guaranteeing that all traffic
receives the appropriate priority.