Cisco Cisco Expressway Installation Guide
Deployment size
vCPU
Reserved RAM
Disk space
NIC
Small (for BE 6000 platform)
2 core
3600 MHz (2 x 1.8 GHz)
4 GB
132 GB
1 Gb
Medium (typical installation)
2 core
4800 MHz (2 x 2.4 GHz)
6 GB
132 GB
1 Gb
Large (extra performance and
scalability capabilities)
scalability capabilities)
8 core
25600 MHz (8 x 3.2 GHz)
8 GB
132 GB
10 Gb
Table 2 Required Minimum Specifications by Deployment Size
For all deployment sizes, you need:
■
VM host operational and running ESXi 5.0 (Update 1), ESXi 5.1, ESXi 5.5, or ESXi 6.0
Note:
As of X8.7, the virtual hardware version of Expressway has changed from 7 to 8. This change means that
ESX/ ESXi version 4.x is explicitly not supported as a platform for Expressway VMs running X8.7.
■
vCenter or vSphere client operational
■
Reserved RAM, CPU, and NIC as per table above
When using vSphere client, configure the network properties through the console.
Co-residency Support
The Expressway can co-reside with applications (any other VMs occupying same host) subject to the following
conditions:
conditions:
■
no oversubscription of CPU: 1:1 allocation of vCPU to physical cores must be used
■
no oversubscription of RAM: 1:1 allocation of vRAM to physical memory
■
no oversubscription of NIC: The Expressway handles large volumes of data, much of which is for real-time
communications, and it needs dedicated access to all the bandwidth specified for its interfaces.
communications, and it needs dedicated access to all the bandwidth specified for its interfaces.
For example, you should not assume that four co-resident small Expressway VMs can handle the expected
load if there is only a 1 Gbps physical interface on the host. In this example, none of the VMs meet the required
minimum specification.
load if there is only a 1 Gbps physical interface on the host. In this example, none of the VMs meet the required
minimum specification.
■
sharing disk storage subsystem is supported subject to correct performance (latency, bandwidth)
characteristics
characteristics
Note:
The CPU reservation requirement excludes provision for the host's hypervisor. You should specify your host
CPU resources to accommodate the hypervisor and still be able to dedicate the CPU reservation requirement to all
co-resident Expressway VMs.
co-resident Expressway VMs.
Installation Process
This process guides you through installing the Expressway VM using vCenter or vSphere client.
Configuring the VM Host
Ensure that the VM host is configured with a valid NTP server – the same NTP server that will be specified in
Expressway.
Expressway.
1.
Select the host.
2.
Go to the Configuration tab.
3.
Select Time configuration.
4.
Select Properties.
If the date and time were red on the previous page, set the date and time manually to the current time.
5.
Click Options.
6
Cisco Expressway on Virtual Machine Installation Guide
Installing a Virtual Machine