ZXR10 8900E series Core Switch Product Description
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9
3.1.2.2
VLAN Translation
VLAN translation is an extension of VLAN function. If a port of the switch starts VLAN
translation, the data stream from the port must be tagged packet. VLAN translation uses
PORT plus VLAN ID in tagged packet as the index to search in MAC
–
VLAN table and
get a new VID, then the traffic is switched in the new VLAN to translate data from one
VLAN to the other.
VLAN translation does not need protocol message. It can be statically configure in
ZXR10 8900E. It should be noticed that if VLAN translation is started, VLAN cannot be
divided based on MAC address; if VLAN is divided based on MAC address, VLAN
translation cannot be started.
In addition single tag conversion, 8900E uses VLAN translation and SVLAN to fulfill the
following functions:
1.
If the incoming packet is single tagged, be able to add outer tag according to policy,
and modify outer tag’s 802.1P value according to inner tag’s 1P value, supporting
policy-based mapping or one-to-one mapping;
2.
If the incoming packet is single tagged, be able to modify inner tag and add outer tag
according to policy, and modify inner and outer tag’s 1P value according to incoming
tag’s 1P value, supporting policy-based mapping or one-to-one mapping;
3.
If the incoming packet is double tagged, be able to delete outer tag according to
policy;
4.
If the incoming packet is double tagged, be able to delete outer tag, and modify
inner tag according to policy, and modify 1P value of the new inner tag according to
outer tag 1P value, supporting policy-based mapping or one-to-one mapping;
5.
If the incoming packet is double tagged, be able to modify outer tag according to
policy, and modify 1P value of the new outer tag based on 1P value of the incoming
outer tag, supporting policy-based mapping or one-to-one mapping;
6.
If the incoming packet is double tagged, be able to modify inner tag according to
policy, and modify 1P value of the new inner tag based on 1P value of the outer tag,
supporting policy-based mapping or one-to-one mapping;
7.
If the incoming packet is double tagged, be able to modify inner and outer tag
according to policy, and modify 1P values of the new inner and outer tags according
to 1P value of the incoming outer tag, supporting policy-based mapping or
one-to-one mapping.
8. If the incoming packet is untagged, be able to add inner and outer tag according to
policy at one time.
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