Service Manual
Sample Conguration Static Method
Dell(conf-vlt-domain)#proxy-gateway static
Dell(conf-vlt-domain-pxy-gw-static)#remote-mac-address <xx:xx:xx:xx:xx:xx> exclude-vlan 10
• Packet duplication may happen with “Exclude-VLAN” conguration – Assume you used the exclude-vlan option (called VLAN 10)
in C and D and in C1 and D1; If packets for VLAN 10 with C’s MAC address (C is in VLT domain 1) gets an L3 hit at C1 in VLT domain 2,
they are switched to both D1 (via ICL) and C via inter DC link. This may lead to packet duplication. Therefore, if C’s MAC address is
learned at C1, the packet does not ood to D1 and only switches to C and avoids packet duplication.
• With the existing hardware capabilities, you can only disable VLT Proxy Gateway only for 500 VLANs, using exclude-VLAN
conguration.
Conguring a Static VLT Proxy Gateway
You can congure a proxy gateway in VLT domains. A proxy gateway allows you to locally route the packets that are destined to an L3
endpoint of the other VLT domain.
Apply the following congurations in the Core L3 Routers C and D in local VLT domain and C1 and D1 in the remote VLT domain:
1 Congure proxy-gateway static in VLT Domain Conguration mode.
2 Congure remote-mac-address <mac-address> in VLT Domain Proxy Gateway LLDP mode. Congure the system mac-
addresses of both C and D in C1 and also in D1 in the remote VLT domain and vice versa.
Sample Static Conguration on C switch or C1 switch
Switch_C#conf
Switch_C(conf)#vlt domain 1
Switch_C(conf-vlt-domain1)#proxy-gateway static
Switch_C(conf-vlt-domain1-pxy-gw-static)#remote-mac-address <xx:xx:xx:xx:xx:xx>....
Conguring an LLDP VLT Proxy Gateway
You can congure a proxy gateway in a VLT domain to locally route packets destined to a L3 endpoint in another VLT domain.
Apply the following congurations in the Core L3 Routers C and D in the local VLT domain and C1 and D1 in the remote VLT domain:
1 Congure proxy-gateway lldp in VLT Domain Conguration mode.
2 Congure peer-domain-link port-channel <vlt portchannel ID> in VLT Domain Proxy Gateway LLDP mode. The
VLT port channel is the one that connects the remote VLT domain.
Sample Dynamic Proxy Conguration on C switch or C1 switch
Switch_C#conf
Switch_C(conf)#vlt domain 1
Switch_C(conf-vlt-domain1)#proxy-gateway lldp
Switch_C(conf-vlt-domain1-pxy-gw-lldp)#peer-domain-link port-channel 1....
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VLT Proxy Gateway