Deployment Guide

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9 Scaling VCF Domains Beyond a Single MX7000 Chassis | Document ID
Networks also contain a Type value that pertains to the QoS settings for the network. There are 11 different
network types available. Some examples are: Storage-iSCSI, Storage-FCoE, VM Migration and Hypervisor
Management. The network type is selected at the time the network is created. Network types can be modified
at any time.
3.2.2 Fabric
Since each chassis can contain both an A and B pair of IOMs a chassis can have one or two fabrics. A fabric
is created on the lead chassis which will contain the switches being deployed. The fabric also defines
whether the switches exist in the same chassis or in two different chassis. Only the FSEs can be deployed in
different chassis and still be part of the same Fabric. The creation of the Fabric causes the FSEs to reboot
into SmartFabric mode. Changing the operational mode and rebooting of the FSEs can take more than 10
minutes. Be patient while the FSEs are reconfigured. Once the Fabric is created, it displays a warning. The
warning indicates that a Fabric has been created but that the Fabric has no Uplink configured.
3.2.3 Uplink
A Fabric runs in an error state which displays: “The SmartFabric is not healthy because at least one uplink
must be configured” until an Uplink is defined. Creation of the Uplink allows the administrator to identify:
• Which FSEs are to be used.
• Which ports of the FSE connect to the upstream network.
• How the selected ports are used (Uplink Type).
• Which networks are assigned to the Uplink.
• How the networks traverse the Uplink (tagged or untagged).
In the case of a single Uplink from the FSE to the upstream network layer ports 1/1/41 and 1/1/42 are typically
used. Select the appropriate Uplink ports for both FSEs. Failure to select both will create a warning indicating
an asymmetric uplink condition.
Once the Uplink ports are selected the administrator selects the Networks to be applied to the Uplink. Each
uplink can have up to one (only one) Untagged Network and zero or more Tagged Networks. The networks
assigned to Uplinks can be updated at any time. SmartFabric applies the networks that are prescribed to both
FSEs in the Fabric. During the creation of the Uplink
The “Uplink Type” support two different Ethernet modes and FCoE, FC Gateway and FC Direct Attach. Only
Ethernet uplinks are addressed in this document. The Uplink Type defines how the connection to the
upstream network will be configured.
Ethernet – No Spanning Tree
“Ethernet – No Spanning Tree” is used when the upstream connection is a physical or virtual Link
Aggregation. When “Ethernet – No Spanning Tree” is selected a VLT LAG is created across both of the
MX9116n IOMs. Since both ends of the connection see the other as a single, aggregated connection there is
no requirement for spanning tree.
Ethernet