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Author Topic: 2x ERS 5632FD as core ,4850 as edge , IST/MLT problem  (Read 1837 times)

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Offline BENCH

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2x ERS 5632FD as core ,4850 as edge , IST/MLT problem
« on: March 21, 2017, 06:53:54 PM »
we have two cores ERS 5632FD where IST is configured , and MLT is configured in both sides of core and edges ERS4826 and ERS4850.
Core1 is running as main , when we switch off the Core2 to test the rudendency , users running normally behind the edges are not able to get the internet connection via a firwall conneced to one of the edge switch ERS4850.
Is this behavior normal ? It should be in my opinion , the users should get the internet despite the core 2 is Off , ultimately when the core2 is back to on  , the users are getting the connection to internet .
I have managed the configuration as per the Avaya documentation .

Please see the snapshots of the configuration for the cores 1 and 2 .

Needs help please and thank you in advance .

« Last Edit: March 21, 2017, 06:59:58 PM by BENCH »

Offline Michael McNamara

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Re: 2x ERS 5632FD as core ,4850 as edge , IST/MLT problem
« Reply #1 on: April 10, 2017, 08:04:00 AM »
You have VRRP setup on both cores and you've verified that your IP routing is working properly correct?

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Offline miguel

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Re: 2x ERS 5632FD as core ,4850 as edge , IST/MLT problem
« Reply #2 on: April 21, 2017, 12:58:50 PM »

Comparing the configs of the two core switches I see a lot of major differences (rip, slpp).
First thing is to check and align the configs.
For redundancy purposes they should be almost mirrored, except the specific parameters.

On which port is the firewall?