Administrator Guide

Figure 145. VLT Proxy Gateway — Topology 1
Guidelines for Enabling the VLT Proxy Gateway
Keep the following points in mind when you enable this functionality:
1 The proxy gateway is supported only for VLT; for example, across VLT domain.
2 To get full benets out of proxy gateway, peer-routing is recommended
3 The current design does not handle asymmetric virtual local area network (VLAN) conguration scenarios such as the same VLAN
congured with L2 mode on one VLT domain and L3 mode on another VLT domain. Congure the same mode for the VLANs across
the VLT domain.
4 You must maintain VLAN symmetry within a VLT domain.
5 The connection between DCs can only be a L3 VLT in eVLT format. For more information, refer to the eVLT Conguration Example
6 Trace route across DCs may show extra hops.
7 You must maintain route symmetry across the VLT domains to ensure no trac drops. 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 the L3 trac. Because routing protocols
are enabled and both DCs come in the same subnet, there is no route asymmetry dynamically. But if you congure the static route on
one DC and not on the other, there is asymmetry.
VLT Proxy Gateway
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