Dual-homed Trellis environment

Done:
- Dual homed host with bonding interface
- Dual link between leaf-spine
- Backup link between paired leaves

Not included:
- Dual homed routers

Change-Id: Ib27198a1db13bb257eecf5dc20d997ea4ea643fb
diff --git a/trellis/dhcpd.conf b/trellis/dhcpd.conf
index c3a03e7..035c062 100644
--- a/trellis/dhcpd.conf
+++ b/trellis/dhcpd.conf
@@ -35,3 +35,8 @@
   hardware ethernet 00:aa:00:00:00:04;
   fixed-address 10.0.3.2;
 }
+
+host dh1 {
+  hardware ethernet 00:cc:00:00:00:01;
+  fixed-address 10.0.2.11;
+}