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Differences between One Arm and Route modes?

Hi Guys,

What are the differences between One Arm and Route modes? Can anyone please explain?

Krishna

3 REPLIES
Cisco Employee

Differences between One Arm and Route modes?

Hi Krishna,

Have a look at the two links below. They provide configuration examples for each of the two topologies along with explanation on the different commands used.

http://docwiki.cisco.com/wiki/Basic_Load_Balancing_Using_Routed_Mode_on_the_Cisco_Application_Control_Engine_Configuration_Example

http://docwiki.cisco.com/wiki/Basic_Load_Balancing_Using_One_Arm_Mode_with_Source_NAT_on_the_Cisco_Application_Control_Engine_Configuration_Example

I hope this helps

Daniel

New Member

Re: Differences between One Arm and Route modes?

The above shown the definition from Cisco site. Im having difficulty in understanding both definition and the implemention of one arm mode.

Here the VIP is at VLAN 50 and the server are at VLAN 51.. then how it can be one arm? Please help

Cisco Employee

Re: Differences between One Arm and Route modes?

Hi Krishna,

It's one-arm because the only vlan configured on the ACE is Vlan50. Connections will both arrive and leave on that vlan.

In this example, the servers are in vlan 51 and the MSFC is routing traffic to them, but you could as well put the ACE in vlan 51 instead.

The main difference between one-arm and routed is that, in routed, it will be the ACE routing the traffic between the client and server vlans, not the MSFC.

Daniel

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