Alcatel 9702E - VRRP Timer

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laf1972
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Alcatel 9702E - VRRP Timer

Post by laf1972 » 12 Feb 2019 01:42

We need your help to verify if the configurations of our Core switches are correct with regards to VRRP time interval, because we seen a multiple wire shark logs (see screenshot below). Your recommendation is highly appreciated.
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silvio
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Re: Alcatel 9702E - VRRP Timer

Post by silvio » 12 Feb 2019 15:07

The config is okay. preempt is enabled (normaly I prefer this only at the switch with the higher prio). And advertisement is default 1 sek.
Means that the master will send via mc info that it is alive (for every instance). All is okay.
regards
Silvio

laf1972
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Re: Alcatel 9702E - VRRP Timer

Post by laf1972 » 13 Feb 2019 01:55

Thanks for the reply Silvo. The challenge is the IT who manages the system is not comfortable on having the VRRP continously broadcasting. Can we adjust the default value? the IT is saying that other switches has a value of 4sec others are 2secs on the VRRP. Or is there in issue on the physical layer either in fiber optic cable or transceiver?

silvio
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Re: Alcatel 9702E - VRRP Timer

Post by silvio » 13 Feb 2019 15:44

This are not broadcast traffic. This is multicast (224.0.0.18). But if all of the switches are not configured for mc than the traffic will be handled like broadcast (is flooted within the vlan). So the best way is to keep the advertisement timer untouched and enable multicast. You will find a lot of examples here in the forum (same at all omniswitches).
regards
Silvio

laf1972
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Re: Alcatel 9702E - VRRP Timer

Post by laf1972 » 13 Feb 2019 22:24

Will try SIlvo. Thanks for your untiring response.....

Will keep you posted

laf1972
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Posts: 12
Joined: 08 Jun 2018 04:09

Re: Alcatel 9702E - VRRP Timer

Post by laf1972 » 14 Feb 2019 10:10

Already checked by the client, the mc was disabled so he enabled once he see's it. hope this will correct the issue. will keep you posted tom for update
thanks silvo

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