Specifications

Chapter 3. Reference architectures 113
Trunks
We group the inter-switch connection into trunks, as shown in Table 3-5.
Table 3-5 Trunk configuration
3.2.3 Layer 3 architecture
The Layer 3 architecture describes the IP addressing used and the initial set-up for Layer 3
protocols such as Virtual Router Redundancy Protocol (VRRP) and Open Shortest Path
First (OSPF).
IP addressing
The IPv4 and IPv6 addressing that we used in the topology is presented in Table 3-6.
Table 3-6 IP addressing Top-of-Rack network
Switch Trunk Trunk members Static or LACP
ACC-1 portchannel3 port5, port6 LACP
ACC-2 portchannel3 port5, port6 LACP
ACC-1 portchannel1 port1, port2 static
ACC-1 portchannel2 port3, port4 static
ACC-2 portchannel1 port1, port2 static
ACC-2 portchannel2 port3, port4 static
AGG-1 portchannel1 port17, port18 static
AGG-1 portchannel2 port19, port20 static
AGG-1 portchannel3 port1, port5 static
AGG-2 portchannel1 port17, port18 static
AGG-2 portchannel2 port19, port20 static
AGG-2 portchannel3 port1, port5 static
VLAN IPv4 IPv6 Description
VLAN 4095 172.25.0.0/16 n/a Management
network
VLAN 10 10.0.10.0/24 FC10::0/64 VLAN10
VLAN101 10.0.101.0/30 FC11::0/64 Point-to-point link
subnet between
ACC-1 and AGG-1
VLAN102 10.0.102.0/30 FC12::0/64 Point-to-point link
subnet between
ACC-1 and AGG-2
VLAN103 10.0.103.0/30 FC13::0/64 Point-to-point link
subnet between
ACC-2 and AGG-1