Protocol Vlan; Vlan Translation; Supervlan - Zte ZXR10 5900 Series User Manual

Chapter 1 VLAN Configuration
Subnet VLAN isolates data frames from different source IP ad-
dresses so that a user has access to data from its own subnet
only. The subnet VLAN priority in untagged frame forwarding is
higher than that of protocol VLAN or PVID; the priority of tagged
frame forwarding in the tagged mode is higher than that of subnet
VLAN.
Port is enabled on Subnet VLAN by default and also can be disabled
according to actual demands.
ZXR10 5900/5200 supports up to 256 subnet VLANs, that is, sup-
ports processing data frames from 256 source IP subnets.

Protocol VLAN

Protocol-based VLAN applies to L3 networks or those running many
protocols. Protocol-based VLAN divides packets based on their
network layer encapsulation protocol. Packets with the same tag
belong to the same protocol VLAN. This network layer protocol
based VLAN can broadcast packets cross several VLAN switches.
It allows users to move freely in the network while remain their
VLAN membership unchanged.
This solution eliminates the need to reconfigure the VLAN when a
user moves to another physical location in the network. In addi-
tion, as VLANs are identified based on the protocol type instead of
attached frame tag, traffic through the network reduces.
Protocol VLAN is not only enabled on all physical ports by default
but also disabled on ports according to demands, which identifies
that VLANs are based on the packet tag only. It separates packets
with different tags so that users have access to data from other
users in the same VLAN only.
ZXR10 5900/5200 supports up to 16 protocol VLANs. This means
that protocol VLANs support processing packets with 16 kinds of
tags.

VLAN Translation

VLAN translation permits the switches of different users to have
same VLAN ID. With VLAN translation, core switch modifies the
same VLAN ID of edge switches into the different VLAN ID. This
function isolate user in core switch and simply the configuration of
edge switch.
ZXR10 5900/5200 support 768 VLAN translation.

SuperVLAN

On a traditional ISP network, one IP subnet is allocated to each
user, which means that the occupation of three IP addresses by a
single user as its subnet address, broadcast address and default
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