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ManualsBrandsVMware ManualsOtherVCENTER CONFIGURATION MANAGER 5.3
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Solution Architectural Overview
VMware Horizon View 5.3 and VMware vSphere for up to 2,000 Virtual
Desktops Enabled by Brocade Network Fabrics, EMC VNX, and EMC Next-
Generation Backup
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Notes:
The solution may use 1 Gb network infrastructure as long as the underlying
requirements around bandwidth and redundancy are fulfilled.
This table assumes that the VSPEX implementation is using rack mounted
servers; for implementations based on blade servers, ensure that similar
bandwidth and high availability capabilities are available.
Brocade VDX Series switches support the transport of jumbo frames. This
solution for EMC VSPEX private cloud recommends an MTU set at 9216
(jumbo frames) for efficient storage and migration traffic. Jumbo frames
are enabled by default on the Brocade ISL trunks. However, to
accommodate end-to-end jumbo frame support on the network for the
edge hosts, this feature can be enabled under the vLAG interface
connected to the ESXi hosts, and the VNX NFS server. The default
Maximum Transmission Unit (MTU) on these interfaces is 2500. This MTU is set
to 9216 to optimize the network for jumbo frame support.
A link aggregation resembles an Ethernet channel, but uses the Link
Aggregation Control Protocol (LACP) IEEE 802.3ad standard. The IEEE
802.3ad standard supports link aggregations with two or more ports. All
ports in the aggregation must have the same speed and be full duplex. In
this solution, Link Aggregation Control Protocol (LACP) is configured on
VNX, combining multiple Ethernet ports into a single virtual device. If a link
is lost in the Ethernet port, the link fails over to another port. All network
traffic is distributed across the active links.
Brocade Virtual Link Aggregation Groups (vLAGs) are used for the ESXi
hosts, the VNX array, and the VMware NFS server. In the case of the VNX,
a dynamic Link Aggregation Control Protocol (LACP) vLAG is used. In the
case of ESXi hosts static LACP vLAGs are used. While Brocade ISLs are used
as interconnects between Brocade VDX switches within a Brocade VCS
fabric, industry standard LACP LAGs are supported for connecting to other
network devices outside the Brocade VCS fabric. Typically, LACP LAGs
can only be created using ports from a single physical switch to a second
physical switch. In a Brocade VCS fabric, a vLAG can be created using
ports from two Brocade VDX switches to a device to which both VDX
switches are connected. This provides an additional degree of device-
level redundancy, while providing active-active link-level load balancing.
In VSPEX Stack Brocade Inter-Switch Link (ISL) Trunking is used within the
Brocade VCS fabric to provide additional redundancy and load
balancing between the NFS clients and NFS server. Typically, multiple links
between two switches are bundled together in a Link Aggregation Group
(LAG) to provide redundancy and load balancing. Setting up a LAG
requires lines of configuration on the switches and selecting a hash-based
algorithm for load balancing based on source-destination IP or MAC
addresses.