Configuring ampp, Ampp overview, Ampp over vlag – Brocade Network OS Administrator’s Guide v4.1.1 User Manual
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Configuring AMPP
AMPP overview
Server virtualization infrastructure associates a server-side Virtual Ethernet Bridge (VEB) port-profile
with each Ethernet MAC address used by a virtual machine (VM) to access the network through a VEB
port. The Brocade Auto Migrating Port Profile (AMPP) feature provides advanced controls for
maintaining and migrating these port-profile associations when a VM migrates across physical servers.
If the VM is migrated from one physical server to another, the VEB’s port-profile migrates with it,
providing automated port-profile migration of the server’s VEB ports that are associated with the VM.
For environments where the server’s virtualization infrastructure provides sufficient controls, automated
port-profile migration approaches are fine. An example of such an environment is a high performance
cluster that uses a Layer 2 network that is isolated from external networks through firewalls and security
appliances.
However, there is a gap between the access and Quality of Service (QoS) controls supported in
external Layer 2 switches and the server virtualization infrastructure. External Layer 2 switches have
more advanced controls compared to server VEB implementations.
Some environments prefer the more advanced controls provided by external network switches. An
example of such an environment is a multi-tier data center that has several types of applications, each
with differing advanced network controls, running over the same Layer 2 network. In this type of
environment, the network administrator often prefers the use of advanced access controls available in
external switches.
Layer 2 networks do not provide a mechanism for automatically migrating switch access and traffic
controls associated with an end-point device when that device migrates from one switch to another. The
migration may be physical, such as an operating system image (such as an application, middleware,
operating system, and associated state) that is running BareMetal OS on one system and is migrated to
another system. The migration may be also be virtual, such as an operating system image that is
running over Hypervisor VMware on one system and is migrated to run over Hypervisor VMware on
another system.
AMPP over vLAG
Virtual Link Aggregation Group (vLAG) is the name for Brocade proprietary LAG in which the links to the
Brocade VCS Fabric can be connected to one or more physical switches or servers. For redundancy
and greater bandwidth, vLAG is a vital component of Brocade VCS Fabric technology. AMPP is
supported on vLAG and standard LAG in a manner similar to physical port.
FCoE capability on all port-profiled interfaces can be activated using the fcoe-port configuration in the
default port-profile (refer to
on page 333). This configuration enforces FCoE
capability only on physical interfaces, not on the port-channel LAG. Member links of the LAG must be
explicitly configured for FCoE capability.
For complete information on vLAG, refer to
Link Aggregation Control Protocol
on page 437.
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