Svlans, Bvlans, Cvlans And Isids; Configuring Bvlans - Extreme Networks Ridgeline Guide Manual

Managing PBB Networks
receive and transmit VMAN traffic. VMAN traffic that is addressed to locations at other PBB network
access points enters a PBB network access port, is switched through the PBB network, and exits at a PBB
network access port. If you do not configure any frame manipulation options, the frames that exit the
PBB network are identical to the frames that entered the PBB network.

SVLANs, BVLANs, CVLANs and ISIDs

Figure 73 shows two terms that are used during the configuration of a PBB network: Service VLAN
(SVLAN) and Backbone VLAN (BVLAN). In a PBB network, an SVLAN is configured on each PBB
network access port, and a BVLAN is configured on each network port. The SVLAN is bound to the
BVLAN, establishing the connection between the PBB network access ports and the PBB network ports
that establish the BVLAN.
Traffic from Customer VLANs (CVLANs) is encapsulated with an SVLAN tag and travels through the
PBB network, and the SVLAN tag is removed as it exits the service provider's network.
An Extended Service ID (ISID) is a method for binding one or more SVLANs to a BVLAN. When
configuring a PBB network, you can create an ISID and an SVLAN, then associate the SVLAN with the
ISID, then bind the ISID to the BVLAN. A given BVLAN can have one or more ISIDs bound to it; an
ISID can be bound to only one BVLAN. A given SVLAN can be associated with multiple ISID/BVLAN
combinations. On a given device, an SVLAN or CVLAN can be associated with one ISID.
Typically, each SVLAN supports VMANs for a different service provider or service instance, with the
different VMANs completely separate from each other. Within a PBB network, the VMANs remain
untouched. The PBB network functions as a pure Layer 2 network that is transparent to users.
VMAN frames (802.1ad format) enter the PBB network through a PBB network access port. The PBB
network access port also accepts VLAN frames. To switch the frame through the PBB network, the
switch encapsulates the VMAN frame in an 802.1ah frame.
Ridgeline can do the following to manage and monitor PBB networks:
Configure BVLANs on managed Extreme Networks devices
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Discover information about a PBB network, including which devices are part of BVLANs and
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SVLANs, the relationship between the BVLANs and SVLANs, and I-tag and S-tag mapping
Display the components of a PBB network (ISIDs, BVLANs, SVLANs, and CVLANs) in Ridgeline
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Network Views

Configuring BVLANs

Ridgeline's PBB provisioning feature allows you to create BVLANs on selected devices, ports, or links,
as well as modify and delete existing BVLANs.
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Ridgeline Concepts and Solutions Guide