ZXR10 2900 Series User Manual
detected and the spanning tree of the port is enabled, eliminate
fault according to status of spanning status, as shown below.
The block-delay interval of loopback detection is 5 minutes.
The send loopdetect packet interval of loopback detection is 15 seconds.
PortId Stp Trunk Link Loop Protect VlanId Status Extend
------ ---- ----- ----- ----- ------- ------- ------
29 No No Up N/A Yes default N/A No
30 No No Up N/A Yes default N/A No
31 No No Up N/A Yes default N/A No
32 No No Up N/A Yes default N/A No
The description of parameters is shown below.
PortId: The port which enables loop detection function.
Stp: Whether the port is STP port or not.
Trunk: Whether the port is link aggregation port or not.
Link: The current state of port.
Loop: Whether the loop exists on link or not.
Protect: Whether the loop protection function is enabled on this
port.
VlanId: The VLANs which are permitted to use loop detection func-
tion.
VLAN Configuration
VLAN Overview
The Virtual Local Area Network (VLAN) protocol is a basic protocol
of layer 2 switching equipment, which enables the administrator
to divide a physical LAN to multiple VLANs. Each VLAN has a VLAN
ID to identify it uniquely in the entire LAN. Multiple VLANs share
the switching equipment and links of the physical LAN.
Logically, a VLAN is like an independent LAN. All frame flows in
the same VALN are restricted in this VLAN. Cross-VLAN visit can
only be implemented through forwarding on layer 3. In this way,
the network performance is improved, and the overall flow in the
physical LAN is effectively lowered.
The VLAN has the following functions:
1. Reduce the broadcast storms of network.
2. Enhance the network security.
3. Provide centralized management and control.
The ZXR10 2920/2928/2952/2936-FI also supports the tagged-
based VLAN. This is a mode defined in IEEE 802.1Q and also is
a universal working mode. In this mode, the division of VLAN is
based on the VLAN information about the port (
PVID
: port VLAN
ID) or the information in the VLAN tag.
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