LLDP VLT Proxy Gateway in a Square VLT Topology
Figure 136. Sample Conguration for a VLT Proxy Gateway
• The preceding gure shows a sample square VLT Proxy gateway topology. There are no diagonal links in the square VLT connection
between the C and D in VLT domain 1 and C1 and D1 in the VLT domain 2. This causes sub-optimal routing. For VLT Proxy Gateway to
work in this scenario you must congure the VLT-peer-mac transmit command under VLT Domain Proxy Gateway LLDP mode,
in both C and D (VLT domain 1) and C1 and D1 (VLT domain 2). This behavior is applicable only in the LLDP conguration and not
required in the static conguration.
Sample Conguration
Dell(conf-vlt-domain)#proxy-gateway lldp
Dell(conf-vlt-domain-pxy-gw-lldp)#vlt-peer-mac transmit
• Assume the inter-chassis link (ICL) between C1 and D1 is shutdown and if D1 is the secondary VLT, one half of the inter DC link goes
down. After VM motion, if a packet reaches D1 with the destination MAC address of D, it may be dropped. This behavior is applicable
only in an LLDP conguration; in a static conguration, the packet is forwarded.
VLT Proxy Gateway
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