Cisco catalyst 6500 series Configuration Note page 33

Chapter 2 Networking with the Content Switching Module
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CSM Inline, MSFC Not Involved
Figure 2-2
Figure 2-2
Client
This configuration has these characteristics:
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CSM Inline, MSFC on Server Side
Figure 2-3
Figure 2-3
Client
This configuration has these characteristics:
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OL-4612-01
CSM Inline, MSFC on Client Side, page 2-6
CSM in Aggregate Mode, page 2-6
Direct Server Return, page 2-7
shows the CSM in a Layer 3 configuration without interaction with the MSFC.
CSM Inline, MSFC Not Involved
Upstream
router
The MSFC is not routing CSM VLANs.
All server-to-server communications (direct Layer 3 or load balanced) are through the CSM.
The CSM must use static routes to the upstream router (default gateway).
shows the CSM in a configuration where the MSFC is located on the server side.
CSM Inline, MSFC Located on Server Side
Upstream
router
Server-to-server direct communications bypass the CSM.
Server-to-server load-balanced connections always require secure NAT (SNAT).
The CSM must use static routes to the upstream router (default gateway).
Routing protocols can be used in the back end.
Layer 2-rewrite is not possible.
Catalyst
6500
MSFC
Servers
CSM
Catalyst
6500
Servers
MSFC
CSM
Catalyst 6500 Series Content Switching Module Configuration Note
CSM Networking Topologies
2-5