Csm In Aggregate Mode - Cisco catalyst 6500 series Configuration Note

CSM Networking Topologies
CSM Inline, MSFC on Client Side
Figure 2-4
Figure 2-4
Client
This configuration has these characteristics:
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CSM in Aggregate Mode

Figure 2-5
Figure 2-5
Client
This configuration has these characteristics:
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Catalyst 6500 Series Content Switching Module Configuration Note
2-6
shows the CSM in a configuration where the MSFC is located on the client side.
CSM Inline, MSFC Located on the Client Side
Upstream
router
The configuration is easy to deploy.
Server-to-server Layer 3 communications pass through the CSM.
Routing protocols can be used between the MSFC and the upstream router.
All traffic to or from the servers passes through the CSM.
shows the CSM in an aggregate-mode configuration.
CSM Located in Aggregate Mode
Upstream
router
The CSM is not inline and the module does not see unnecessary traffic.
Easy routing and CSM configuration.
Requires PBR or client SNAT because return traffic is required.
Server-to-server load-balanced connections always require SNAT.
Layer 2-rewrite is not possible.
Chapter 2
Catalyst
6500
Servers
CSM
MSFC
Catalyst
6500
CSM
Servers
MSFC
Networking with the Content Switching Module
OL-4612-01