Stp-with-service-vfs topology, Stp-with-service-vfs configuration rules – Brocade Network OS Administrator’s Guide v4.1.1 User Manual
Page 388

configurations, whether 802.1Q or service VF. This is necessary for STP to operate correctly across
the fabric. All other switch ports that do not participate in this domain must have STP disabled.
STP-with-service-VFs topology
The following illustrates an example VCS Fabric that is connected to three vDCs. There must not be
any external physical connectivity among the vDCs.
FIGURE 48 STP-with-service-VFs topology
STP-with-service-VFs configuration rules
It is user’s responsibility to determine which vDC should participate in RSTP. The following behavior
and rules apply:
• RSTP
‐
RSTP is VLAN-unaware. Service VF configurations are allowed in each vDC.
‐
A single RSTP topology is formed by the VCS Fabric (which appears as a single logical
switch) and all attached vDCs.
‐
A topology change in one vDC affects the topology of other vDCs.
‐
Data loops between the VCS Fabric and individual vDCs are detected by this RSTP
topology.
• MSTP
STP-with-service-VFs topology
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Network OS Administrator’s Guide
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