
• low latency — The access layer uses S55 switches
Resiliency In MXL (Routed VLT)
• Intra-chassis — Within the chassis (mVLT)
• Inter-chassis resiliency — Across 2 chassis (VLT)
This section contains the following topics:
• (Optional) Configuring Advanced Options
• Selecting the Fabric Deployment Type
(Optional) Configuring Advanced Options
For a Layer 2 or Layer 3 with Resiliency (Routed VLT) fabric, you customize the bandwidth between the aggregation and
access switches. When you configure the fabric link bandwidth between aggregation and access switches from the
Enabled Link Bandwidth Customization option from the Deployment Topology screen, the bandwidth selected is shared
equally by 2 redundant links. For example, if you select a fabric link bandwidth of 80 Gb between the aggregation and
access switches, you can configure 40 GB for each redundant link on the Fabric Customization screen.
To configure the deployment type so that you can customize the fabric link bandwidth between the aggregation and
access switches:
1. In the Deployment Topology, check one of the following options:
– Layer 2
– Layer 3 with Resiliency (Routed VLT)
2. Check the Enabled Link Bandwidth Customization option.
Figure 31. Enabled Link Bandwidth Customization Option
3. In the Fabric Link Core Aggregation and aggregation and Access option (only the applicable options for a select
topology are configurable), select the fabric bandwidth value from the Aggregation and Access pull-down menu.
For example, for 2 tier topology, selecting the 120 Gb bandwidth option allows you to later customize the
bandwidth from 20 to 120 Gb in increments of 20 Gb in the Fabric Customization screen.
4. Click the Refresh Deployment Type button.
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