how to configer failover link Extreme X460

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how to configer failover link Extreme X460
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Mohammed Jasheer

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Posted 4 years ago

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Stephane Grosjean

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Hi, do you mean Software Redundant Port (SRP)?

config ports <primary> redundant <secondary> {link [on | off]}

The primary and secondary port are local to the switch (or stack), they have the same configuration and no other L2 protocols on them (STP...). The primary port is the active one, the secondary is the backup. The backup comes up only if the primary fails. Link off (default) means the secondary port is not ready (led off) and so failover is a bit longer, while with link on, it's sub-second.

You can also control the behavior if the primary port comes back up, with smart redundancy.
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Mohammed Jasheer

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hai stephane,
                            we are using x460-24 l3  am configure osps also .we have  Two WAN link our HO to Branch . we need to configure  failover. am configure like this but its not working. 


configure iproute add 192.168.37.0 255.255.255.0 192.168.92.1
configure iproute add 192.168.50.0 255.255.255.0 192.168.92.1
configure iproute add 192.168.50.0 255.255.255.0 192.168.200.1 200
configure iproute add 192.168.37.0 255.255.255.0 192.168.200.1 200
configure iproute add default 192.168.92.1
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PARTHIBAN CHINNAYA, Alum

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Hi Mohammad,
You are trying to configure floating static route incase if one nexthop fails the other must take over.Is this right?
You can achieve this using Flow redirect feature.
Example:

create flow-redirect  gilly------------------this is just a name
configure flow-redirect flow_redirect_name add nexthop 192.168.92.1 priority 100
configure flow-redirect flow_redirect_name add nexthop 192.168.200.1 priority 200

if match all {
destination-address 192.168.37.0/24 ;
} then {
permit ;
redirect-name gilly
}
}
Note:higher priority next hop will take precedence

regards,
Parthiban Chinnaya
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PARTHIBAN CHINNAYA, Alum

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If you are just looking for failover normal floating static route.
then the below config must work.
configure iproute add 192.168.37.0 255.255.255.0 192.168.92.1
configure iproute add 192.168.50.0 255.255.255.0 192.168.92.1
configure iproute add 192.168.50.0 255.255.255.0 192.168.200.1 200
configure iproute add 192.168.37.0 255.255.255.0 192.168.200.1 200
configure iproute add default 192.168.92.1

When one of the nexthop fails do you see that route removed from Fib?
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Mohammed Jasheer

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Hai PARTHIBAN CHINNAYA

                  Sorry for delay response. we have two l3 switches  between one of our WAN link. So when the link is down on that time the port is not down both end. route also not  also not removed.
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PARTHIBAN CHINNAYA, Alum

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In this scenario the link failure is not detetcted thats why the route is not removed from routing table.
I would recommend configuring BFD for static routes on both ends.
This is the ideal solution.