Svlan uniqueness, Ieee 802.1ad (pb), Ieee 802.1ah (pbb) – Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) User Manual
Page 304: Figure 41, Adding and removing vlans and esis

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Multi-Service IronWare Switching Configuration Guide
53-1003036-02
Adding and removing VLANs and ESIs
10
SVLAN uniqueness
FIGURE 41
SVLAN uniqueness for IEEE 802.1ad and IEEE 802.1ah configurations
IEEE 802.1ad (PB)
For IEEE 802.1ad (PB), because the provider only has 4K of SVLANs, the SVLANs must be unique
among all S-ESIs
IEEE 802.1ah (PBB)
With IEEE 802.1ah (PBB), multiple SVLANs are mapped to I-tags. These SVLANs may belong to
different providers and should be unique only among the SVLANs for the S-ESI to which the SVLAN
belongs, and among all the S-ESIs which are clients for the I-ESI for the I-tag encapsulation.
Single
SVLAN
Multiple
CVLANs
Multiple
CVLANs
Multiple
CVLANs
Multiple
SVLANs
Multiple
SVLANs
Multiple
SVLANs
Multiple
SVLANs
Multiple
SVLANs
Multiple
SVLANs
Multiple
SVLANs
I-ESI
C-ESI
C-ESI
C-ESI
S-ESI
S-ESI
S-ESI
S-ESI
S-ESI
S-ESI
C-ESI
C-ESI
I-ESI
I-tag
I-tag
PB 802.1ad: SVLANs bound to
different provider S-ESIs need to be
unique, whether or not connected
with C-ESIs
802.1ah PBB: A SVLAN in a particular I-
ESI needs to be unique among all S-ESIs
that are bound to the provider I-ESI