What Perfect Forward Secrecy represent


A security feature that indicates that the cracking of one key does not affect the security of other keys because they have no derivation relationship

Other related questions:
What VBST represent
VBST, a Huawei spanning tree protocol, constructs a spanning tree in each VLAN so that traffic from different VLANs is forwarded through different spanning trees. VBST is equivalent to STP or RSTP running in each VLAN. Spanning trees in different VLANs are independent of each other

What ERPS represent
ERPS is a protocol defined by the International Telecommunication Union - Telecommunication Standardization Sector (ITU-T) to eliminate loops at Layer 2. Because the standard number is ITU-T G.8032/Y1344, ERPS is also called G.8032. ERPS defines Ring Auto Protection Switching (RAPS) Protocol Data Units (PDUs) and protection switching mechanisms

What a mVLAN represent
Management VLAN (mVLAN) configuration allows users to use the VLANIF interface of the mVLAN to log in to the management switch to manage devices in a centralized manner

What LPU represents?
The Line Processing Unit (LPU) provides the physical interfaces to the outside world (Ethernet/POS) and connects to the Switch Fabric Unit (SFU).

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