Белая книга для Cisco Cisco Nexus 5010 Switch
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The configuration is almost identical to Configurations 7a and 7b. The only difference is that the firewall-facing
interfaces are no longer vPCs.
Clustered East-West Firewalls in Transparent Mode
The connectivity mode of the active-active clustered east-west firewalls in transparent mode is provided by the
ASA spannel EtherChannel feature. Please refer to configuration guide for more details:
The leaf configuration is identical to Configurations 7a and 7b. In addition, because both firewalls are actively
forwarding traffic, this configuration eliminates suboptimal traffic routing (Figure 17).
Figure 17. Clustered Firewalls in Transparent Mode with Spanned EtherChannel and vPC Connectivity to Leaf Nodes
Tenant-Edge Firewall Deployment Scenarios
As discussed in the introduction to this document, tenant-edge firewalls are deployed when the data traffic between
the VRF instances or tenants needs to be subjected to security policies. A tenant-edge firewall is often used as an
ultimate gateway out of the VRF instance, which means that any traffic that needs to be sent outside the routing
domain of a given VRF instance has to pass through the tenant-edge firewall. This section explores this case
(Figure 18).