Figure 124. Sample Configuration for a VLT Proxy Gateway
Guidelines for Enabling the VLT Proxy Gateway
Keep the following points in mind when you enable a VLT proxy gateway:
• Proxy gateway is supported only for VLT; for example, across a VLT domain.
• You must enable the VLT peer-routing command for the VLT proxy gateway to function.
• Asymmetric virtual local area network (VLAN) configuration, such as the same VLAN configured with
Layer 2 (L2) mode on one VLT domain and L3 mode on another VLT domain is not supported. You
must always configure the same mode for the VLANs across the VLT domain.
• You must maintain VLAN symmetry within a VLT domain.
• The connection between DCs must be a L3 VLT in eVLT format . For more information, refer to the
eVLT Configuration Example
• The trace route across the DCs can show extra hops.
• To ensure no traffic drops, you must maintain route symmetry across the VLT domains. When the
routing table across DCs is not symmetrical, there is a possibility of a routing miss by a DC that does
not have the route for L3 traffic. Because routing protocols are enabled and both DCs are in the same
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VLT Proxy Gateway
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