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Author Topic: SNIP and MIP  (Read 772 times)

Offline MARGPN

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SNIP and MIP
« on: November 09, 2011, 07:01:24 PM »
Hi All,
What's the difference between a SNIP and a MIP from a dynamic routing perspective?
Only snip allows dynamic routing. Are there any detailed explanation for this and how a SNIP (or MIP) are used with dynamic routing?
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Offline evildani

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Re: SNIP and MIP
« Reply #1 on: November 14, 2011, 03:06:19 PM »
I can not tell you specifically from dynamic routing, but they are the same and different at the same time. If they are in the same network segment and under the same route, then the NS will load balance between the two IPs, as a general concept use only one MIP and several SNIP, but this can change depending on your network and needs.

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Offline thazelaar

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Re: SNIP and MIP
« Reply #2 on: November 15, 2011, 12:50:11 PM »
MIP is a Proxy IP of last resort.

Simply put, this is the last proxy IP address a NS will fall back to attempt communication if there is not a good relevant SNIP to use.

In a deeper discussion on when, why and where...a technical answer is this, a MIP is not needed in the config since nearly all functions can be done with a SNIP. In fact I am not sure I can name a function that requires a MIP. BUT, I still think from a historical perspective (and the Proxy IP of Last Resort) having a MIP is not a bad idea.

With that said, I still believe firmly that a MIP should be used and placed in the same network segment as the NSIP (which would be the historical location for a MIP). Continue to use as many SNIPs as needed and bind SNIPs to VLANs (leaning to why I refer to SNIPs as VLAN IPs).

Regards,

Timco Hazelaar
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