System Manual 3. System Architecture
76.7300FP11/2, Rev A 8/09 Page 2-19
VLAN Support
3.25 The Tellabs 7300 NEs support the following three functional bridging
modes:
• Customer Bridge (CB)—In CB mode, the Tellabs 7345 Switch and the
Tellabs 7325 Switch operate as an 802.1Q VLAN bridge with all ports
configured as Customer Bridge Port (CBP). Contains a single C-VLAN
component.
• Provider Edge Bridge (PEB)—In PEB mode, ports of Tellabs 7345
Switch and the Tellabs 7325 Switch facing the customer network can
be configured either as customer edge port (CEP) or as a customer
network port (CNP). Ports facing provider network are configured as
Provider Network Port (PNP). In addition to PNP interface, which is
used for interfacing with other 802.1ad nodes, the Tellabs 7345 Switch
and the Tellabs 7325 Switch also support the Proprietary Provider
Network Port (PPNP) interface for interfacing with non-standard
(proprietary) Q-in-Q nodes. Contains a single S-VLAN component.
• Provider Core Bridge (PCB)—In PCB mode, the Tellabs 7345 Switch
and the Tellabs 7325 Switch operate as an 802.1ad compliant PCB
with all ports configured as either Proprietary PNP (PPNP) or PNP.
3.26 The Tellabs 7345 Switch and the Tellabs 7325 Switch provide the following
VLAN support. Refer to Table 3.4, page 2-19.
Table 3.4 VLAN Support
Standard/Feature Details
802.1Q Point-to-point VLANs
Multipoint-to-Multipoint VLANs
MSTP: CB mode
802.1ad – Provider Bridge Provider edge bridge: S-VLAN push, pop;
provision p-bits
L2 control protocol handling: peer, tunnel, or
discard; determined by destination MAC
MSTP: PB mode